The Low-Income Housing Tax Credit, or LIHTC, is the largest federal subsidy for affordable housing, and it confuses first-time sponsors because it is two instruments at once. On the capital side, LIHTC underwrites like a bond: a defined stream of federal tax credits, claimed annually over ten years, priced by investors as a yield on committed equity. On the operating side, it behaves like a startup: a fixed timeline, binary execution milestones, a fifteen-year compliance period, and recapture risk that punishes a single missed step. A LIHTC credit is a government-defined cash flow with a default clause, and it should be underwritten with the same discipline as any fixed-income instrument. Treating it as only one of the two is how sponsors misprice the deal.
Key Takeaways
The 9% credit delivers roughly 70% of a project's eligible basis in present value; the 4% credit delivers roughly 30%, per IRS Section 42 and the Congressional Research Service.
LIHTC credits are claimed annually over 10 years, but the affordability and compliance commitment runs at least 30 years, split into a 15-year compliance period and a 15-year extended use period.
The One Big Beautiful Bill Act of July 2025 made permanent a 12% increase in the 9% credit ceiling and lowered the tax-exempt bond financing test for 4% credits from 50% to 25% of aggregate basis, effective for bonds issued on or after January 1, 2026.
For 2026, the 9% credit ceiling per state is the greater of $3.416 per capita or a small-state minimum of $3,953,600, per IRS Revenue Procedure 2025-32.
Buildings in a HUD-designated Qualified Census Tract or Difficult Development Area can increase eligible basis up to 130%, raising available credits by up to 30%.
Why Does LIHTC Underwrite Like a Bond?
Because the credit is a fixed, government-defined cash flow. A LIHTC award sets a dollar amount of credit claimed in equal annual installments over ten years. Investors buy that stream for upfront equity at a price per credit dollar, exactly the way a bond buyer pays today for a defined future coupon.
The credit amount is not a forecast, it is a schedule. Once the property is placed in service and certified, the ten-year stream is largely fixed in size. The investor's job is to price it. They pay cents on the dollar for each dollar of future credit, and that price implies a yield, the same mechanic as a bond trading at a discount to par. This is a different exercise than a cap rate applied to operating income, because the primary cash flow is a tax attribute, not rent.
Recapture is the default clause. Under IRS Section 42, if a building's qualified basis falls during the fifteen-year compliance period, credits already claimed can be recaptured with interest. So the instrument has a coupon, a term, and a default provision. That is a bond, denominated in tax liability rather than cash. The operator who underwrites it as a development pro forma and ignores the fixed-income structure is pricing only half the security.
What Is the Difference Between the 9% and 4% LIHTC Credit?
The 9% credit returns about 70% of eligible basis in present value and is awarded competitively from a capped state allocation. The 4% credit returns about 30%, is paired with tax-exempt private activity bonds, and is effectively non-competitive because it is not rationed under the same per-capita ceiling. The two rates fund different deal types.
Feature | 9% credit | 4% credit |
|---|---|---|
Present value of eligible basis | ~70% | ~30% |
Allocation | Competitive, capped per-capita state ceiling | Paired with tax-exempt private activity bonds |
Typical use | New construction without bonds | Acquisition and rehab, bond-financed new construction |
Scarcity | Highly rationed by the state ceiling | Constrained by the private-activity bond volume cap |
2026 financing test | Not applicable | 25% of aggregate basis, down from 50%, per OBBBA |
The 9% credit is the scarce one. Each state receives an annual allocation set by the greater of $3.416 per capita or the small-state minimum of $3,953,600 for 2026, per IRS Revenue Procedure 2025-32, and a state housing finance agency awards it through a competitive Qualified Allocation Plan. Demand routinely exceeds supply by a wide margin, so the 9% credit behaves like an auctioned instrument.
The 4% credit trades scarcity of credits for scarcity of bonds. It is available to any qualifying deal financed with enough tax-exempt private activity bonds, so the binding constraint is the bond volume cap, not the credit itself. The One Big Beautiful Bill Act lowered the bond financing test from 50% to 25% of aggregate basis for bonds issued on or after January 1, 2026, which stretches the same bond authority across more deals and, in practice, expands 4% credit production.
How Much Equity Does a LIHTC Deal Raise?
Credit equity is the product of eligible basis, the applicable fraction, the credit rate, ten years, and the price investors pay per credit dollar. A worked example makes the mechanics concrete: a $10 million eligible basis in a Qualified Census Tract can raise roughly $10.5 million in equity before a dollar of debt.
Worked example, using stated inputs and an illustrative price:
Eligible basis: $10,000,000
Location: a HUD-designated Qualified Census Tract, so the 130% basis boost applies, raising adjusted eligible basis to $13,000,000
Applicable fraction: 100%, all units income-restricted, so qualified basis equals $13,000,000
Credit rate: 9% competitive allocation
Annual credit: $13,000,000 x 9% = $1,170,000
Ten-year credit stream: $1,170,000 x 10 = $11,700,000
Investor price, illustrative, typically in the range of $0.85 to $0.95 per credit dollar: $0.90
Equity raised: $11,700,000 x 0.90 = $10,530,000
Now strip the location boost. Without the Qualified Census Tract, eligible basis stays at $10,000,000, the annual credit is $900,000, the ten-year stream is $9,000,000, and at the same $0.90 price the deal raises $8,100,000. The 130% boost added $2.43 million of equity from the same physical building. That is the compounding logic of LIHTC: a designation the operator does not control moves the equity raise more than most line items the operator negotiates.
The pricing step is where the instrument feels most like a bond. Cents per credit dollar is a discount to par, and it implies an investor yield that rises when capital is scarce and falls when it is plentiful. None of this is tax advice; credit calculations turn on facts specific to each deal and eligible basis has exclusions that a qualified accountant and counsel must confirm.
Why Does LIHTC Operate Like a Startup?
Because the return depends on flawless execution against a fixed clock. Credits vest only when units are built, placed in service, leased to income-qualified tenants, and kept compliant for fifteen years. A missed placed-in-service deadline, a defective tenant file, or a drop in qualified basis can trigger recapture, the affordable-housing equivalent of a down round.
Unlike a stabilized acquisition priced on net operating income, a LIHTC deal is mostly binary in its early years. The credit does not exist until the property is placed in service and certified. Miss the carryover or placed-in-service deadline and the allocation can be lost outright. During the fifteen-year compliance period, every low-income unit must stay qualified, and a lapse reduces qualified basis and can recapture previously claimed credits with interest under Section 42.
The clock does not stop when the credits do. Every LIHTC property carries an affordability commitment of at least thirty years, split into the fifteen-year compliance period and a subsequent extended use period of at least fifteen more years, governed by a recorded agreement with the state agency. So the operating discipline outlives the ten-year credit stream by two decades. Compliance is the product, not a back-office function. Startups fail on execution rather than on the idea, and LIHTC deals lose value the same way: the underwriting can be sound and the equity still evaporates on a missed milestone.
This is the opposite risk profile from a pure place-based tax play. A deferral incentive like an opportunity zone rewards holding an asset and asks little operational precision, and the decade of opportunity zone data shows capital chasing the tax benefit into markets that already worked. LIHTC inverts that. The benefit is larger and more certain in size, but it is contingent on execution the sponsor must deliver for fifteen years.
Frequently Asked Questions
What is the difference between the 9% and 4% LIHTC credit? The 9% credit returns roughly 70% of eligible basis in present value and is awarded competitively from a capped state ceiling, so it is highly rationed. The 4% credit returns roughly 30%, is paired with tax-exempt private activity bonds, and is limited by bond volume rather than a competitive credit cap.
How long is the LIHTC compliance period? The compliance period runs fifteen taxable years from the start of the credit period. Beyond that, an extended use agreement adds at least fifteen more years, producing an affordability commitment of at least thirty years. Recapture of credits is an enforcement tool during the fifteen-year compliance period, per IRS Section 42.
What did the One Big Beautiful Bill Act change for LIHTC? The One Big Beautiful Bill Act of July 2025 made permanent a 12% increase in the 9% credit allocation and lowered the tax-exempt bond financing test for 4% credits from 50% to 25% of aggregate basis, effective for bonds issued on or after January 1, 2026, which expands the number of 4% deals a fixed bond cap can support.
Conclusion
LIHTC is not a grant and it is not ordinary real estate. It is a fixed-income instrument stapled to an execution-heavy development, and the two halves demand different discipline. The bond half rewards precise pricing: know the eligible basis, the boost, the credit rate, and the price per credit dollar, and you know the equity the deal will raise. The startup half rewards operational rigor: hit the placed-in-service date, keep every unit qualified, and hold compliance for fifteen years while the affordability commitment runs for thirty. Sponsors who model only the pro forma miss the security they are actually selling. Sponsors who model only the credit miss the recapture risk that can claw it back. Underwrite both, price the stream like a bond, and run the asset like a company that cannot afford a missed quarter.