HUD sets 2027 map of areas eligible for bigger housing tax credits
HUD's annual list of Difficult Development Areas and Qualified Census Tracts, published Oct. 6, decides where affordable rental projects can claim up to 30% more Low-Income Housing Tax Credit in 2027.
By American Policy WireFiled
The bottom line HUD's yearly map decides which neighborhoods let affordable rental developers claim up to 30% more tax credit, which can make or break a project's financing.
“Eligible basis may be increased up to 130 percent from what it would otherwise be.” That line from HUD’s Federal Register notice on Tuesday explains why developers of affordable rentals watch the agency’s yearly list of Difficult Development Areas and Qualified Census Tracts [1]. The 2027 designations, published Oct. 6, apply to Low-Income Housing Tax Credit allocations made after Dec. 31, 2026 [1].
Why it matters: The Low-Income Housing Tax Credit is the main federal subsidy for building and rehabbing income-restricted rental housing, and a location on HUD’s list can raise a project’s credit by up to 30% [1]. HUD’s own example: a credit worth 70% of qualified basis can effectively rise to as much as 91% [1]. For projects financed with tax-exempt bonds, the federal designation is the only route to that boost, because the notice says states may not grant their own discretionary increase to bond-financed buildings [1].
How does HUD pick the 2027 areas?
Qualified Census Tracts are neighborhoods where at least half of households earn under 60% of area median gross income, or where the poverty rate is at least 25% [1]. HUD requires a tract to meet one of those tests in at least two of three American Community Survey data sets, this year the 2018-2022, 2019-2023 and 2020-2024 tabulations [1]. The 2026 list used the 2017-2021 through 2019-2023 releases, so the oldest year of data rolls off [1, 2].
Difficult Development Areas are places where housing costs run high relative to income. HUD ranks each metropolitan ZIP code area and each rural county by its modified two-bedroom fair market rent, divided by a rent limit tied to its very low-income limit, using fiscal 2026 figures [1]. ZIP code areas with fewer than 100 residents, such as ones containing airports, are left out [1].
Both lists face statutory population caps of 20% [1]. An area can be a QCT or a DDA, not both [1].
One technical change from last year: for the 2026 list, HUD had to translate fiscal 2025 rents, built on 2018 metro-area definitions, into the 2023 definitions [2]. The 2027 notice describes fiscal 2026 rents and income limits based on the 2023 definitions, with HUD’s own adjustments for distinct rental markets inside metro areas [1].
By the numbers
- 130%: The most a building in a designated area can count toward eligible basis, or up to 30% more credit [1].
- 20%: The population cap on all metropolitan DDAs taken together, and separately on the QCTs within any single metro or rural area [1].
- 730 days: How long a project keeps a 2027 designation after filing a complete application, if its area later drops off [1].
- 1.12: The permanent multiplier Congress applied to each state’s housing credit ceiling starting in 2026 [3].
- 25%: The share of a building’s basis that tax-exempt bonds now must finance to bring in 4% credits, down from 50%, for qualifying buildings [3].
What it means for buyers and owners
- Renters are the end users. Tax credit units must carry restricted rents, and the notice lists the income tests owners choose from, including an average-income option allowing units at up to 80% of area median income [1].
- Rural areas are ranked on their own. Nonmetropolitan DDAs are chosen from county rents and capped at 20% of the combined rural population, apart from the metro cap [1].
- Timing matters for developers. A project placed in service before Jan. 1, 2027, cannot claim a 2027 designation even if its bonds are issued later, according to one of HUD’s worked examples [1].
- Multiphase sites keep their first status if the first application described every phase and later phases apply in consecutive years [1].
How the 2025 tax law fits in: Public Law 119-21, signed July 4, 2025, made a larger state credit ceiling permanent and replaced a temporary 1.125 multiplier that covered 2018 through 2021 [3]. It also lets buildings qualify for bond-linked credits with 25% bond financing, if at least one bond issued after Dec. 31, 2025, finances at least 5% of the building and land [3]. That change applies to buildings placed in service in taxable years beginning after 2025 [3]. For bond-financed buildings, HUD’s map rather than a state agency decides whether the boost is available [1, 3].
Financing costs remain high. Freddie Mac’s 30-year fixed average was 7.28% on Oct. 1, against 6.34% a year earlier, and the Fed raised its target range to 3.75% to 4% on Sept. 16 [4, 5, 6].
What’s next: The 2027 lists take effect for credit allocations after Dec. 31, 2026 [1]. HUD says it redraws both lists every year as new rent, income and poverty data come out [1].
The other side: HUD’s summary of the credit “does not purport to bind Treasury or the IRS,” the notice says, and the IRS holds sole authority to interpret and enforce the rules [1]. It also warns that statements by other parties about the lists “should not be relied upon” when they don’t match HUD’s published language [1].
Q&A Quick answers
- Q1When do the 2027 Qualified Census Tracts and Difficult Development Areas take effect?
- They apply to tax credit allocations made after Dec. 31, 2026, and to bond-financed buildings whose bonds are issued and that are placed in service after that date [1].
- Q2How much extra tax credit does a QCT or DDA location give?
- A building in a designated area may raise its eligible basis to as much as 130% of the normal amount, which can lift the credit by up to 30% [1]. HUD's example turns a 70% present-value credit into as much as 91% [1].
- Q3What if my project's area drops off the list in 2028?
- The 2027 designation still counts if a complete application is filed before the next lists take effect and credits are allocated, or bonds issued or the building placed in service, within 730 days of that filing [1].
- Q4What makes a census tract a Qualified Census Tract?
- At least half of its households must earn under 60% of area median gross income, or its poverty rate must be 25% or more, in at least two of the three ACS data sets HUD reviewed [1]. Designated tracts can hold no more than 20% of an area's population [1].
- Q5Can 4% bond-financed deals get the 30% basis boost outside a QCT or DDA?
- No. HUD's notice says a state's own discretionary boost applies only to credits from the state ceiling and is not allowed for buildings receiving credits in connection with tax-exempt bonds [1].