[Federal Register Volume 90, Number 187 (Tuesday, September 30, 2025)]
[Rules and Regulations]
[Pages 46756-46762]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-19005]


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DEPARTMENT OF THE TREASURY

Internal Revenue Service

26 CFR Part 1

[TD 10036]
RIN 1545-BQ47


Section 42, Low-Income Housing Credit Average Income Test 
Procedures

AGENCY: Internal Revenue Service (IRS), Treasury.

ACTION: Final regulations and removal of temporary regulations.

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SUMMARY: This document contains final regulations setting forth 
recordkeeping and reporting requirements for the average income test 
for purposes of the low-income housing credit. If a building is part of 
a residential rental project that satisfies the average income test, 
the building may be eligible to earn low-income housing credits. These 
final regulations affect owners of low-income housing projects, State 
or local housing credit agencies that monitor compliance with the 
requirements for low-income housing credits, and, indirectly, tenants 
in low-income housing projects.

DATES: 
    Effective date: These regulations are effective on September 30, 
2025.
    Applicability date: For dates of applicability, see Sec.  1.42-
19(f).

FOR FURTHER INFORMATION CONTACT: Waheed Olayan at (202) 317-4137 (not a 
toll-free number).

SUPPLEMENTARY INFORMATION:

Authority

    This document contains amendments to the Income Tax Regulations (26 
CFR part 1) under section 42 of the Internal Revenue Code (Code) 
relating to recordkeeping and reporting requirements for the average 
income test for purposes of the low-income housing credit (final 
regulations). The final regulations are issued under the authority 
granted to the Secretary of the Treasury or the Secretary's delegate 
(Secretary) in sections 42(n) and 7805(a) of the Code.
    Section 42(n) provides, in part, ``The Secretary shall prescribe 
such regulations as may be necessary or appropriate to carry out the 
purposes of [section 42] . . .''
    Section 7805(a) provides, ``[T]he Secretary shall prescribe all 
needful rules and regulations for the enforcement of [the Code], 
including all rules and regulations as may be necessary by reason of 
any alteration of law in relation to internal revenue.''

Background

    The Tax Reform Act of 1986, Public Law 99-514, 100 Stat. 2085 (1986 
Act) created the low-income housing credit under section 42. Section 
42(a) provides that the amount of the low-income housing credit for any 
taxable year in the credit period is an amount equal to the applicable 
percentage (effectively, a credit rate) of the qualified basis of each 
qualified low-income building.
    Section 42(c)(1)(A) provides that the ``qualified basis'' of any 
qualified low-income building for any taxable year is an amount equal 
to: (i) the applicable fraction, determined as of the close of the 
taxable year, multiplied by (ii) the eligible basis of the building 
(determined under section 42(d)).
    Section 42(c)(1)(B) defines the term ``applicable fraction'' as the 
smaller of the unit fraction or floor space fraction. The unit fraction 
is the number of low-income units in the building divided by the number 
of residential rental units (whether or not occupied) in the building. 
The floor space fraction is the total floor space of low-income units 
in the building divided by the total floor space of residential rental 
units (whether or not occupied) in the building.
    Subject to certain exceptions in section 42(i)(3)(B), section 
42(i)(3) defines the term ``low-income unit'' as any unit in a building 
if the unit is rent-restricted and the individuals occupying the unit 
meet the income limitation under section 42(g)(1) that applies to the 
project of which the building is a part.
    Section 42(d)(1) and (2) describe how to calculate the eligible 
basis of a new building or an existing building, respectively.
    Section 42(c)(2) defines the term ``qualified low-income building'' 
as any building which is part of a qualified low-income housing project 
at all times during the compliance period (as defined in section 
42(i)(1), the period of 15 taxable years beginning with the first 
taxable year of the credit period).
    For a project to qualify as a low-income housing project, it must 
satisfy one of the section 42(g) minimum set-aside tests, as elected by 
the taxpayer. Prior to the enactment of the Consolidated Appropriations 
Act of 2018, Public Law 115-141, 132 Stat. 348 (2018 Act), section 
42(g) contained two minimum set-aside tests, known as the 20-50 test 
and the 40-60 test. Under the 20-50 test, an electing taxpayer cannot 
earn any low-income housing credits unless at least 20 percent of the 
residential units in the project both are rent-restricted and are 
occupied by tenants whose gross income is 50 percent or less of the 
area median gross income (AMGI). Under the 40-60 test, an electing 
taxpayer cannot earn any low-income housing credits unless at least 40 
percent of the residential units in the project both are rent-
restricted and are occupied by tenants whose gross income is 60 percent 
or less of AMGI.
    The 2018 Act added section 42(g)(1)(C), which gives taxpayers a 
third option for their election of a minimum set-aside test--the 
average income test. Under the average income test, an electing 
taxpayer cannot earn any low-income housing credits unless--(i) 40 
percent \1\ or more of the residential units in the project both are 
rent-restricted and are occupied by tenants whose income does not 
exceed the imputed income limitation that the taxpayer designated with 
respect to the specific unit; and (ii) the average of the imputed 
income designations of these units does not exceed 60 percent of AMGI.
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    \1\ In the case of a project described in section 142(d)(6), 
this ``40 percent'' is replaced with ``25 percent.''
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    Special rules in section 42(g)(1)(C)(ii)(I) through (III) govern 
the income limitations of low-income units as well as the role of those 
limitations in the average income test. Under the 20-50 and 40-60 
tests, the income limitations for all low-income units flow 
automatically from the taxpayer's election of one of those two set-side 
tests. In contrast, under the average income test, the electing 
taxpayer must designate each unit's imputed income limitation, which 
will then be taken into account in applying the test. In addition, 
section 42(g)(1)(C)(ii)(III) requires the imputed income limitation 
designated for any unit to be 20, 30, 40, 50, 60, 70, or 80 percent of 
AMGI.

[[Page 46757]]

    Under section 42(g), once a taxpayer elects to use a particular 
set-aside test for a project, that election is irrevocable. Thus, once 
a taxpayer has elected to use any of the three tests, the taxpayer may 
not subsequently elect to use one of the others. Although a taxpayer 
may have elected the 20-40 or 40-60 test before the average income test 
became available, the later availability of the average income test 
does not affect the irrevocability of the earlier election.
    Under section 42(m)(1), every State or local housing credit agency 
(Agency) making allocations of the ability to earn low-income housing 
credits must have a qualified allocation plan (QAP) to guide it in 
making those allocations.
    Under section 42(m)(1)(B)(iii), a QAP must also contain a procedure 
that the Agency (or its agent) will follow in monitoring noncompliance 
with low-income housing credit requirements and in notifying the IRS of 
any such noncompliance. See Sec.  1.42-5 of the Income Tax Regulations 
for rules implementing this requirement.
    Section 1.42-5(e)(2) provides that a QAP must require an Agency to 
provide prompt written notice to the owner of a low-income housing 
project if the Agency does not receive the certification described in 
Sec.  1.42-5(c)(1), or does not receive, or is not permitted to 
inspect, the tenant income certifications, supporting documentation, 
and rent records described in Sec.  1.42-5(c)(2)(ii), or discovers by 
inspection, review, or in some other manner, that the project is not in 
compliance with the provisions of section 42.
    Section 1.42-5(e)(4) both sets the correction period after an 
Agency has notified an owner under Sec.  1.42-5(e)(2) and provides that 
the correction period shall be that period specified in the monitoring 
procedure during which an owner must supply any missing certifications 
and bring the project into compliance with the provisions of section 
42. The correction period is not to exceed 90 days from the date of the 
notice to the owner described in Sec.  1.42-5(e)(2). An Agency may 
extend the correction period for up to 6 months, but only if the Agency 
determines there is good cause for granting the extension.
    On October 30, 2020, the Department of Treasury (Treasury 
Department) and the IRS published a notice of proposed rulemaking (REG-
119890-18) in the Federal Register (85 FR 68816) proposing regulations 
setting forth guidance on the average income test under section 
42(g)(1)(C) (2020 proposed regulations). On March 24, 2021, the 
Treasury Department and the IRS held a public hearing on the 2020 
proposed regulations.
    The possibility of a ``cliff'' (as described in following two 
paragraphs) was one of the main concerns that commenters expressed 
regarding the 2020 proposed regulations. Almost all projects earning 
low-income housing credits have more than the minimum number of low-
income units needed for the project to qualify for the credits. Thus, 
with the 20-50 or 40-60 tests, a later discovery that some unit failed 
to be a low-income unit generally would reduce the amount of credit 
earned but would not totally preclude a project's eligibility.
    By contrast, in response to the 2020 proposed regulations, 
commenters were concerned about the following possibility with respect 
to the average income test: Suppose that a taxpayer identified well 
over 40 percent of units whose income limits averaged exactly 60 
percent of AMGI, and further suppose that one of the units with the 
lowest income limit turned out to fail the criteria for being a low-
income unit. In that case, the remaining units identified by the 
taxpayer would have an average income above 60 percent. The commenters 
were concerned that, in this situation and except for time-limited 
mitigation measures described in the 2020 proposed regulations, the 
2020 proposed regulations would apply the average income test to all 
remaining units. Discovery of a single unit's failure might occur only 
after the proposed mitigation measures were no longer available. Thus, 
because no mitigation would be possible, the entire project would fail 
the average income set-aside test and would be denied any low-income 
housing credits. Some commenters called this total disqualification a 
``cliff,'' and many believed that this result was inappropriate since, 
despite the loss of that unit, at least 40 percent of the units in the 
project were units whose income limits averaged to 60 percent or less 
of AMGI.
    On October 12, 2022, the Treasury Department and the IRS published 
average-income-test final regulations (TD 9967) in the Federal Register 
(87 FR 61489) (2022 final regulations). In the same Treasury decision, 
the Treasury Department and the IRS published temporary regulations 
providing recordkeeping and reporting requirements needed to facilitate 
administrability of, and compliance with, the 2022 final regulations 
(temporary regulations).
    Under the 2022 final regulations, a project for residential rental 
property meets the requirements of the average income test if the 
taxpayer's project contains a qualified group of units that constitutes 
40 percent \2\ or more of the residential units in the project. Section 
1.42-19(b)(2)(i) requires the units in a qualified group to, first, 
individually satisfy the criteria that would qualify each unit as a 
low-income unit under section 42(i)(3) (the same criteria that apply to 
the 20-50 or 40-60 set-asides). Specifically, the rules in Sec.  1.42-
19(b)(1)(i) through (iii) require that each unit be rent-restricted, 
occupants of the unit meet the income limitation for the unit, and no 
other provision in section 42 (including section 42(i)(3)(B) through 
(E)) or the regulations thereunder denies low-income status to the 
unit. In addition, Sec.  1.42-19(b)(2)(ii) requires that the average of 
the designated imputed income limitations of the units in the group not 
exceed 60 percent of AMGI. The qualified group of units must be 
identified as required in Sec.  1.42-19(b)(3)(i).
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    \2\ In the case of a project described in section 142(d)(6), 
this ``40 percent'' is replaced with ``25 percent.''
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    The Treasury Department and the IRS expected that commenters' 
concerns would be fully assuaged by the qualified group approach in the 
2022 final regulations, as implemented with the flexibility in the 
temporary regulations.
    In the same issue of the Federal Register in which the 2022 final 
and temporary regulations were published, the Treasury Department and 
the IRS published a notice of proposed rulemaking (REG-113068-22, 87 FR 
61543) regarding the administration of the average income test (2022 
proposed regulations). The text of the temporary regulations served as 
the text of the 2022 proposed regulations.
    Four public comments were submitted in response to the 2022 
proposed regulations. The comments are available for public inspection 
at www.regulations.gov or upon request.
    The Treasury Department and the IRS considered all comments in the 
development of this Treasury decision, which follows the basic 
framework of the 2022 proposed and temporary regulations, with some 
revisions. The following Summary of Comments and Explanation of 
Revisions discusses the comments received and the revisions adopted.
    In addition, the final regulations include some minor, non-
substantive revisions to the 2022 proposed regulations that are not 
discussed in the Summary of Comments and Explanation of Revisions.

[[Page 46758]]

Summary of Comments and Explanation of Revisions

    These final regulations provide recordkeeping and reporting 
requirements for the average income test under section 42(g)(1)(C).

I. Impact of Noncompliant Unit Included in Identified Qualified Group 
of Units

    As with the 2020 proposed regulations, commenters expressed concern 
that the temporary regulations (and thus the 2022 proposed regulations) 
might be interpreted as again creating such a cliff effect in 
circumstances where a taxpayer identified well over 40 percent of units 
whose income limits averaged exactly 60 percent of AMGI. The commenters 
stated that the temporary regulations could be interpretated as meaning 
that a post-year-end discovery that one of the units with the lowest 
income limit failed the criteria for being a low-income unit could 
cause an entire project to lose eligibility to earn low-income housing 
credits. Specifically, if the later-discovered noncompliant unit was in 
the qualified group of units reported to the Agency to demonstrate 
compliance with the average income test, then excluding that unit's 
(below-60 percent of AMGI) income limit would cause the average of the 
remaining units in the identified group to exceed 60 percent of AMGI. 
Commenters also raised the possibility that the reported qualified 
group might contain exactly 40 percent of the units in the project, 
even though other units were available to include in the reported 
qualified group. In that case, removing the now-disqualified unit would 
reduce the qualified group of units to less than 40 percent of the 
project's total units.
    In such cases, commenters suggested that the taxpayer could have 
taken steps to preserve the qualification of the project if the 
regulations allowed other units to be substituted in the qualified 
group that is used to satisfy the requirements of the average income 
test. Some of the comment letters proposed revising Sec.  1.42-
19T(c)(4), regarding an Agency's waiver authority, to expressly allow a 
taxpayer to submit a corrected group of qualified units.
    The 2022 final regulations were intended to eliminate the risk of a 
cliff. Consistent with that intention, the temporary regulations were 
not intended to cause disqualification because of a post-year-end 
discovery that one of the identified units failed the criteria for 
being a low-income unit in circumstances where the taxpayer could have 
identified a different group of qualified units. The purpose of the 
recordkeeping and reporting rules for the average income test is 
similar to the rules for the other set-aside tests. Thus, the rules in 
the temporary regulations are intended to create a contemporaneous 
record of the qualified groups of units. This record helps document and 
later verify that the taxpayer met the requirements of the average 
income test and correctly calculated the applicable fraction of the 
building.
    The Treasury Department and the IRS agree with commenters that the 
final regulations should more clearly allow the submission of a 
corrected qualified group when the taxpayer or Agency realizes that a 
previously submitted group fails to be a qualified group. For example, 
suppose that a unit with a 40 percent imputed income designation is 
included in a reported qualified group but is later determined to have 
been noncompliant during the relevant time period. In such a case, 
submitting a revised qualified group can document both the removal of 
that noncompliant unit and any removal of other units. For example, 
simultaneously removing the noncompliant unit and one or more higher-
limitation units may be needed to reduce the average imputed income 
designations of units in the identified group down to 60 percent or 
less of AMGI. This updated reporting requirement will be helpful for 
demonstrating that the average income test was met as of the prior year 
end. It will also be useful for identifying more clearly the qualified 
group of units to be used for calculating the applicable fraction.
    Accordingly, these final regulations adopt the commenters' 
suggestion to permit the submission of a corrected qualified group of 
units. The Treasury Department and the IRS note that allowing 
submission of a revised qualified group does not allow a taxpayer 
retroactively to change income designations for any unit in a building 
after a taxable year has closed. A change in an income designation is 
not allowed even if a tenant's income would have supported a lower 
designation prior to year end.

II. Reporting of Two Groups of Qualified Units

    Proposed Sec.  1.42-19(c)(1)(ii) would require taxpayers to report 
two separate groups of qualified units: (i) one for the minimum set-
aside test; and (ii) one for computing the applicable fractions of 
buildings in the project. Some commenters suggested that reporting two 
separate groups of qualified units is unnecessary because a single list 
of all units submitted for determining the applicable fraction would 
include the information needed to determine whether the minimum set-
aside is met. Under the definition of qualified group, the designations 
of the low-income units in the applicable-fraction qualified group must 
average 60 percent or less of AMGI. Thus, if that group includes at 
least 40 percent of the units in the project, that group of units is a 
qualified group that satisfies the average-income set-aside.
    The commenters recommended that the final regulations streamline 
the reporting process to allow a taxpayer to report to the Agency a 
single qualified group of low-income units that is large enough to 
include at least 40 percent of the residential units in the project. 
This qualified group of units demonstrates compliance with the set 
aside, and data on the units in each building represented in the group 
is available to compute the applicable fraction(s) for each such 
building.
    Section 1.42-19(c) of the 2022 proposed regulations would give 
Agencies flexibility to determine the best time and manner for 
taxpayers to communicate the required information so that each Agency 
can adopt a system that best serves that particular Agency. This 
flexibility is intended to enable the Agency to minimize burden on the 
Agency and taxpayers.
    The Treasury Department and the IRS agree with commenters that one 
list can be sufficient. However, it is important to maintain 
flexibility for any Agency that finds two separate lists helpful. Thus, 
the final regulations revise the language in the 2022 proposed 
regulations to provide that Agencies have discretion to permit 
taxpayers to report either one or two qualified groups of low-income 
units. The final regulations also include examples illustrating the 
application of this rule.

III. Timing of Agency Waiver

    Proposed Sec.  1.42-19(c)(4) would provide Agencies with the 
discretion, on a case-by-case basis, to waive in writing any failure to 
comply with the proposed regulations' recordkeeping and reporting 
requirements. The waiver may be granted up to 180 days after discovery 
of the failure, whether by the taxpayer or Agency.
    One commenter was concerned that 180 days may be insufficient to 
address a failure, especially if the waiver discretion is being used to 
remedy the ``cliff test'' reporting issue described earlier. This 
commenter recommended revising the final regulations so that the 180-
day period starts with the determination of a designation or

[[Page 46759]]

identification failure, rather than a discovery of a failure. The 
commenter suggested that this determination be defined as the Agency's 
issuance to the IRS of Form 8823 (Low-Income Housing Credit Agencies 
Report of Noncompliance or Building Disposition). Other commenters 
recommended that the 180-day period start after the end of the 
correction period in Sec.  1.42-5(e)(4) (90 days after notice from 
Agency under Sec.  1.42-5(e)(2), plus up to an additional six months at 
Agency's discretion).
    The Treasury Department and the IRS considered these 
recommendations, and the final regulations adopt a revised version of 
the 2022 proposed regulations. These revisions align the Sec.  1.42-19 
reporting requirements with the rules in Sec.  1.42-5. The modification 
in Sec.  1.42-19(c)(4) is also necessary because the final regulations 
now allow owners of low-income housing projects to submit a corrected 
list upon discovery of a problem with a previously submitted list, 
whether the discovery is by the taxpayer or Agency.
    The final regulations in Sec.  1.42-19(c)(4) provide that a failure 
to comply with the procedural requirements of Sec.  1.42-19(c)(1), 
(c)(2), or (c)(3)(iv) is treated as corrected in three situations: (i) 
if a taxpayer discovers the failure to comply, the taxpayer has up to 
180 days after discovery of the failure to give the Agency a revised 
submission, such as a revised qualified group of units; (ii) if an 
Agency discovers a failure to comply, the Agency should provide prompt 
notification in a manner similar to Sec.  1.42-5(e)(2), and then the 
taxpayer must satisfactorily address the failure within the correction 
period of Sec.  1.42-5(e)(4); or (iii) in all cases, an Agency has 
discretion to waive in writing any failure to comply with the 
procedural requirements of Sec.  1.42-19(c)(1), (c)(2), or (c)(3)(iv). 
This waiver must occur within the applicable time period (dependent on 
whether a taxpayer or Agency discovered failure). As indicated in the 
preceding paragraph, the final regulations distinguish noncompliance 
discovered by an Agency and noncompliance discovered by a taxpayer. In 
the case of a taxpayer discovery, providing the taxpayer with 180 days 
after discovery to give the Agency a revised submission should provide 
sufficient time for taxpayers to comply, because the period does not 
begin before taxpayers have knowledge, or an appreciation, that there 
is, indeed, a failure.
    In contrast, when an Agency discovers the failure, the final 
regulations align with the rules that apply to an Agency discovery 
under Sec.  1.42-5. The Agency must provide prompt notice under Sec.  
1.42-5(e)(2) to start the correction period in Sec.  1.42-5(e)(4). 
Aligning the Sec.  1.42-19 rules with the notice provision in Sec.  
1.42-5(e)(2) and the correction period provided by Sec.  1.42-5(e)(4) 
places taxpayers and Agencies in the same position with an Agency-
discovered average income issue as the taxpayer is in when the Agency 
discovered that otherwise failed to certify under Sec.  1.42-5, or when 
the Agency discovered any other noncompliance. The final regulations do 
not adopt commenters' suggestion to start the correction period after a 
``determination'' by the Agency. Under that suggestion, determination 
means the issuance of a Form 8823 as detailed in Sec.  1.42-5(e)(3). 
Adopting such a late deadline would misalign these rules with the rules 
in Sec.  1.42-5. For example, when an Agency ``discovers'' that a 
project is not in compliance with the provisions of section 42, Sec.  
1.42-5(e)(2) requires the Agency to provide prompt written notice to 
start the correction period in Sec.  1.42-5(e)(4). If, instead, a 
``determination'' were required for an Agency-discovered error 
regarding average-income, then the permitted correction period would 
extend past the date of the correction period for other Agency-
discovered errors or failed certifications under Sec.  1.42-5(e)(4) 
(such as correcting the physical noncompliance of a unit). The burden 
on the taxpayer in this situation (submitting a corrected list of 
units) does not justify a longer or different period of time than other 
Agency-identified issues.

Effect on Other Documents

    The temporary regulations are removed effective September 30, 2025.

Special Analyses

I. Regulatory Planning and Review--Economic Analysis

    These final regulations are not subject to review under section 
6(b) of Executive Order 12866 pursuant to the Memorandum of Agreement 
(July 4, 2025) between the Treasury Department and the Office of 
Management and Budget regarding review of tax regulations.

II. Paperwork Reduction Act

    The Paperwork Reduction Act of 1995 (44 U.S.C. 3501-3520) (PRA) 
requires that a Federal agency obtain the approval of OMB before 
collecting information from the public, whether such collection of 
information is mandatory, voluntary, or required to obtain or retain a 
benefit. The collections of information contained in these regulations 
has been approved by OMB under control number 1545-0988.
    Section 1.42-19(c)(1) provides recordkeeping and reporting 
requirements related to the identification of a qualified group of 
units for each of (i) satisfaction of the average income set-aside test 
and (ii) applicable fraction determinations. Section 1.42-19(c)(2) 
provides reporting requirements to the Agency with jurisdiction over a 
project. Section 1.42-19(c)(3)(iv) provides recordkeeping and reporting 
requirements related to designations of the imputed income limitations 
for residential units. Section 1.42-19(d)(2) provides recordkeeping and 
reporting requirements related to changing a unit's designated imputed 
income limitation.
    This information in the collections of information will generally 
be used by the IRS and Agencies for tax compliance purposes and by 
taxpayers to facilitate proper reporting and compliance. Specifically, 
the collections of information in Sec.  1.42-19 apply to owners of 
projects that receive the low-income housing credit and elect the 
average income set-aside. With respect to the recordkeeping 
requirements in Sec.  1.42-19(c)(3)(iv), and (d)(2), section 
42(g)(1)(C)(ii)(I) requires that the taxpayer designate the imputed 
income limitations of the units taken into account for purposes of the 
average income test. Thus, the recordkeeping requirements that are 
provided allow for a process of designation that will result in a 
reliable record of both the original designations of the imputed income 
limitations of low-income units and any redesignations of units' 
limitations within a project.
    The recordkeeping rules in Sec.  1.42-19(c)(1) with respect to a 
qualified group of units are similarly needed to ensure there is a 
reliable record to show that the units used for purposes of the average 
income set-aside test and for determining a building's applicable 
fraction were part of a group of units within the project whose average 
designated imputed income limitations do not exceed 60 percent of AMGI. 
This limitation is consistent with the requirement in section 
42(g)(1)(C)(ii)(II). The annual reporting requirements in Sec.  1.42-
19(c)(1), (c)(3), and (d)(2) are also similar in substance to other 
annual certifications required of taxpayers. For example, minimum 
certifications by owners are required in qualified allocation plans as 
provided in Sec.  1.42-5(c). The reporting requirements in these final 
regulations also provide added flexibility by allowing the applicable 
Agency to determine the time

[[Page 46760]]

and manner for the reporting under Sec.  1.42-19(c)(2)(i). Also, Sec.  
1.42-19(c)(4) gives taxpayers the ability to correct failures and 
maintains the Agencies the ability to waive any failure of reporting on 
a case-by-case basis.
    A summary of paperwork burden estimates follows:
    Estimated number of respondents: Approximately 200 taxpayers 
elected the average income test for just over 2,000 buildings between 
2018 and 2022. When viewed annually, we project that approximately 100 
additional taxpayers will have eligible buildings and 1,000 additional 
buildings will be eligible under the average income test.
    Estimated burden per response: We estimate that identifying which 
units are for use in the average income set-aside test and applicable 
fraction determinations and designating a unit's imputed income 
limitation takes an average of 15 minutes per unit. Based on an 
estimated average of 15 units per building and an average 15 minutes of 
time per unit, an impacted taxpayer will incur an average of 225 
minutes per building to record the additional designations due to the 
flexibility under the regulations for the average income test. Total 
average annual burden for recording the designations per building is 
11,250 hours (15 units x 15 minutes x 3,000 buildings).
    Taxpayers are also required to report redesignation of units, and 
why they are required to redesignate units during the year. For 
purposes of this analysis, we assume that an average of 4 units per 
building will be redesignated annually. We estimate each redesignation 
will take an average of 10 minutes. Thus, we estimate the average 
number of minutes per year to record redesignations for an impacted 
taxpayers to be 40 minutes per building for a total average annual 
burden of 2,000 hours (40 minutes x 3,000 buildings).
    In addition, we estimate an annual reporting burden related to the 
expanded flexibility rules to average 20 minutes per impacted taxpayers 
for a total burden of 100 hours (20 minutes x 300 taxpayers).
    Estimated frequency of response: Annual.
    Estimated total burden hours: The annual burden hours for this 
regulation is estimated to be 13,350 hours. Using a monetization rate 
of $56.60 per hour (2024 dollars), the burden for this regulation is 
$755,610 for impacted taxpayers.
    A Federal agency may not conduct or sponsor, and a person is not 
required to respond to, a collection of information unless the 
collection of information displays a valid control number.

III. Regulatory Flexibility Act

    Pursuant to the Regulatory Flexibility Act (RFA) (5 U.S.C. chapter 
6), the Secretary of the Treasury hereby certifies that this final 
regulation will not have a significant economic impact on a substantial 
number of small entities. This certification is based on the fact that, 
prior to the publication of this final regulation and before the 
enactment of the 2018 Act, taxpayers were already required to satisfy 
either the 20-50 test or the 40-60 test, as elected by the taxpayer, in 
order to qualify as a low-income housing project. The 2018 Act added a 
third minimum set-aside test (the average income test) that taxpayers 
may elect. This final regulation sets forth requirements for the 
average income test, and the costs associated with the average income 
test are similar to the costs associated with the 20-50 test and 40-60 
test.
    As described in more detail in the PRA analysis section of the 
preamble, approximately 200 taxpayers elected the average income test 
for just over 2,000 buildings between 2018 and 2022. When viewed 
annually, we project that approximately 100 additional taxpayers will 
have eligible buildings and 1,000 additional buildings will be eligible 
under the average income test. We estimate that identifying which units 
are for use in the average income set-aside test and applicable 
fraction determinations and designating a unit's imputed income 
limitation takes an average of 15 minutes per unit. Based on an 
estimated average of 15 units per building and an average 15 minutes of 
time per unit, an impacted taxpayer will incur an average of 225 
minutes per building to record the additional designations due to the 
flexibility under the regulations for the average income test. In 
addition, taxpayers are also required to report redesignation of units, 
and why they are required to redesignate units during the year. For 
purposes of this analysis, we assume that an average of 4 units per 
building will be redesignated annually. We estimate each redesignation 
will take an average of 10 minutes. Thus, we estimate the average 
number of minutes per year to record redesignations for an impacted 
taxpayer to be 40 minutes per building for a total average annual 
burden of 2,000 hours. We also estimate an annual reporting burden 
related to the expanded flexibility rules to average 20 minutes per 
impacted taxpayer for a total burden of 100 hours.

IV. Section 7805(f)

    Pursuant to section 7805(f), the proposed regulation was submitted 
to the Chief Counsel for the Office of Advocacy of the Small Business 
Administration for comment on its impact on small business, and no 
comments were received. The Treasury Department and the IRS also 
requested comments from the public.

V. Unfunded Mandates Reform Act

    Section 202 of the Unfunded Mandates Reform Act of 1995 (UMRA) 
requires that agencies assess anticipated costs and benefits and take 
certain other actions before issuing a final rule that includes any 
Federal mandate that may result in expenditures in any one year by a 
State, local, or Tribal government, in the aggregate, or by the private 
sector, of $100 million in 1995 dollars, updated annually for 
inflation. This final rule does not include any Federal mandate that 
may result in expenditures by State, local, or Tribal governments, or 
by the private sector in excess of that threshold.

VI. Executive Order 13132: Federalism

    Executive Order 13132 (Federalism) prohibits an agency from 
publishing any rule that has federalism implications if the rule either 
imposes substantial, direct compliance costs on State and local 
governments, and is not required by statute, or preempts State law, 
unless the agency meets the consultation and funding requirements of 
section 6 of the Executive order. These regulations do not have 
federalism implications and do not impose substantial direct compliance 
costs on State and local governments or preempt State law within the 
meaning of the Executive order.

VII. Congressional Review Act

    Pursuant to the Congressional Review Act (5 U.S.C. 801 et seq.), 
the Office of Information and Regulatory Affairs designated this rule 
as not a ``major rule,'' as defined by 5 U.S.C. 804(2).

VIII. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    Executive Order 13175 (Consultation and Coordination With Indian 
Tribal Governments) prohibits an agency from publishing any rule that 
has Tribal implications if the rule either imposes substantial, direct 
compliance costs on Indian Tribal governments, and is not required by 
statute, or preempts Tribal law, unless the agency meets the 
consultation and funding requirements of section 5 of the Executive 
order. This final rule does not have substantial direct effects on one 
or more Federally recognized Indian tribes and does not impose 
substantial direct compliance

[[Page 46761]]

costs on Indian Tribal governments within the meaning of the Executive 
order.

Drafting Information

    The principal author of these regulations is Waheed Olayan, Office 
of the Associate Chief Counsel (Energy, Credits, and Excise Tax). 
However, other personnel from the Treasury Department and the IRS 
participated in their development.

List of Subjects in 26 CFR Part 1

    Income taxes, Reporting and recordkeeping requirements.

Adoption of Amendments to the Regulations

    Accordingly, 26 CFR part 1 is amended as follows:

PART 1--INCOME TAXES

    Paragraph 1. The authority citation for part 1 is amended by 
removing the entry for Sec.  1.42-19T to read in part as follows:

    Authority:  26 U.S.C. 7805 * * *
* * * * *
    Section 1.42-19 also issued under 26 U.S.C. 42(n);
* * * * *
    Par. 2. Section 1.42-0 is amended by, in the table of contents for 
Sec.  1.42-19, adding entries for (c)(1), (c)(1)(i) and (ii), (c)(2), 
(c)(2)(i) and (ii), (c)(3)(iv), (c)(4), (c)(4)(i) through (iv), (d)(2), 
and (f)(4) to read as follows:


Sec.  1.42-0   Table of contents.

* * * * *


Sec.  1.4219   Average income test.

* * * * *
    (c) * * *
    (1) Identification of low-income units for use in the average 
income set-aside test or the applicable fraction determination.
    (i) In general.
    (ii) Recording and communicating.
    (2) Notifications to the Agency with jurisdiction over a project.
    (i) Agency flexibility.
    (ii) Examples.
    (3) * * *
    (iv) Recording, retention, and annual communications related to 
designations.
    (4) Correcting failures to comply with procedural requirements.
    (i) In general.
    (ii) Discovery by taxpayer.
    (iii) Discovery by Agency.
    (iv) Waiver by Agency.
    (d) * * *
    (2) Process for changing a unit's designated imputed income 
limitation.
* * * * *
    (f) * * *
    (4) Taxable years beginning on or after September 30, 2025.
    Par. 3. Section 1.42-19 is amended by:

0
1. Adding paragraphs (c)(1) and (2), (c)(3)(iv), (c)(4), and (d)(2).
0
2. Revising paragraphs (f)(1) and (f)(2)(ii).
0
3. Adding paragraph (f)(4).
    The revisions and additions read as follows:


Sec.  1.42-19  Average income test.

* * * * *
    (c) * * *
    (1) Identification of low-income units for use in the average 
income set-aside test or the applicable fraction determination--(i) In 
general. For a taxable year, a taxpayer must follow the procedures 
described in paragraph (c)(1)(ii) of this section to identify--
    (A) A qualified group of units that satisfy the average income set-
aside test; and
    (B) A qualified group of units to be used to determine the 
applicable fraction.
    (ii) Recording and communicating. A taxpayer must--
    (A) Record the identification in its books and records, where the 
identification must be retained for a period not shorter than the 
record-retention requirement under Sec.  1.42-5(b)(2); and
    (B) Communicate the annual identifications to the applicable 
housing credit agency (Agency) as provided in paragraph (c)(2) of this 
section.
    (2) Notifications to the Agency with jurisdiction over a project--
(i) Agency flexibility. An Agency may establish the time and manner in 
which information is annually provided to it.
    (ii) Examples. The following fact patterns illustrate some of the 
approaches that paragraph (c)(2)(i) of this section allows an Agency to 
use to establish the time and manner in which a taxpayer annually 
provides information to the Agency.

    (A) Example 1. Agency A requires taxpayers annually to submit a 
single list reporting all low-income units in a qualified group to 
be used by the taxpayer in determining the applicable fraction(s) 
for all building(s) in the project. The identification of each unit 
on the list must include the unit's imputed income designation. 
Consequently, Agency A can identify within the list a group or 
groups of units that constitute a qualified group that satisfies the 
average income set-aside test and taxpayers are considered to have 
identified a qualified group of units that satisfy the average 
income test.
    (B) Example 2. Agency B has the same requirements for taxpayers 
as Agency A in paragraph (c)(2)(ii)(A) of this section (Example 1) 
for the initial annual report, but thereafter Agency B permits 
taxpayers, in lieu of a full list, to submit a statement describing 
the differences from the previous year's information (or, when 
applicable, by reporting that there are no such differences).
    (C) Example 3. Agency C requires taxpayers to annually provide 
two separate lists of low-income units: one list identifying the 
qualified group of units for use in the average income set-aside; 
and a second list identifying the qualified group of units for use 
in the applicable fraction determination. The identification of each 
unit on the lists must include the unit's imputed income 
designation.

    (3) * * *
    (iv) Recording, retention, and annual communications related to 
designations. A taxpayer designates a unit's imputed income limitation 
by recording the limitation in its books and records, where it must be 
retained for a period not shorter than the record retention requirement 
under Sec.  1.42-5(b)(2). The preceding sentence applies both to units 
whose first occupancy is as a low-income unit and to previously market-
rate units that are converted to low-income status. The designation 
must also be communicated annually to the applicable Agency as provided 
in paragraph (c)(2) of this section.
    (4) Correcting failures to comply with procedural requirements--(i) 
In general. If there is a failure to comply with the requirements of 
paragraph (c)(1) or (2) or (c)(3)(iv) of this section and any of the 
procedures described in paragraph (c)(4)(ii), (iii), or (iv) of this 
section are followed, then the failure is treated as corrected and the 
relevant requirements are treated as having been satisfied. In such 
case, the tax consequences under this section correspond to that deemed 
satisfaction.
    (ii) Discovery by taxpayer. If a taxpayer discovers a failure to 
comply, the taxpayer must submit a correction to the Agency. Such a 
correction may be in the form of a revised qualified group of units. 
This submission must occur not more than 180 days after discovery of 
the failure.
    (iii) Discovery by Agency. If an Agency discovers a failure to 
comply, the Agency must provide prompt notification to the taxpayer in 
a manner similar to the one described in Sec.  1.42-5(e)(2), and the 
taxpayer must submit a correction to the Agency within a time period no 
longer than the period described in Sec.  1.42-5(e)(4).
    (iv) Waiver by Agency. In all cases, if a correction is required 
due to a failure to comply with the requirements of paragraph (c)(1) or 
(2) or (c)(3)(iv) of this section, then the Agency has the discretion 
to waive that failure in

[[Page 46762]]

writing. For the waiver to be effective, this writing must be provided 
to the taxpayer within the time limit described in paragraph (c)(4)(ii) 
or (iii) of this section, as applicable.
    (d) * * *
    (2) Process for changing a unit's designated imputed income 
limitation. The taxpayer effects a change in a unit's imputed income 
limitation by recording the new designation in its books and records, 
where it must be retained for a period not shorter than the record 
retention requirement under Sec.  1.42-5(b)(2). The new designation 
must also be communicated to the applicable Agency as provided in 
paragraph (c)(2) of this section and must become part of the annual 
report to the Agency of income designations. The prior designation must 
be retained in the books and records for the period specified in 
paragraph (c)(3)(iv) of this section. A designation under this 
paragraph (d)(2) satisfies paragraph (c)(3) of this section.
* * * * *
    (f) * * *
    (1) In general. Except as provided in paragraphs (f)(3) and (4) of 
this section, this section applies to taxable years beginning after 
December 31, 2022.
    (2) * * *
    (ii) The designation required by paragraph (f)(2)(i) of this 
section must comply with paragraphs (c)(3)(ii) and (iv) of this 
section, without taking into account paragraph (c)(4) of this section. 
Paragraph (c)(2) of this section applies to these designations, except 
that the Agency may allow the notification to be made along with any 
other notifications for the first taxable year beginning after December 
31, 2022.
* * * * *
    (4) Taxable years beginning on or after September 30, 2025. 
Paragraphs (c)(1) and (2), (c)(3)(iv), (c)(4), (d)(2), and (f)(2)(ii) 
of this section apply to taxable years beginning on or after September 
30, 2025. For taxable years beginning before September 30, 2025, see 
Sec.  1.42-19T as contained in 26 CFR part 1, as revised April 1, 2025. 
For taxable years beginning before September 30, 2025, taxpayers, 
however, may choose to apply the rules of paragraphs (c)(1) and (2), 
(c)(3)(iv), (c)(4), (d)(2), and (f)(2)(ii) of this section, provided 
the taxpayers apply the rules in their entirety and in a consistent 
manner.


Sec.  1.42-19T  [Removed]

    Par. 4. Section 1.42-19T is removed.

Edward T. Killen,
Acting Chief Tax Compliance Officer.
    Approved: September 19, 2025.
Kenneth J. Kies,
Assistant Secretary of the Treasury (Tax Policy).
[FR Doc. 2025-19005 Filed 9-29-25; 8:45 am]
BILLING CODE 4830-01-P