The HTC substantial rehab test requires Qualified Rehabilitation Expenditures (QREs) to exceed the greater of $5,000 or the building's adjusted basis at the start of a 24-month measurement period (60 months for phased projects). Bridge financing must fund the qualifying rehab spend inside the window or the credit is denied.
Substantial rehab mechanics and bridge timing implications
Tax credit programs change with IRS, Treasury, NPS, and CDFI Fund guidance. This page is sponsor-POV process commentary, not tax or legal advice. Engage tax counsel and a tax-credit syndicator for every transaction before relying on the mechanics described.
Substantial rehab statutory test: §47(c)(1)(C) requires QREs (defined as expenditures for the rehabilitation of the building, generally excluding land, additions, and certain enlargements) to exceed the greater of (a) $5,000, or (b) the adjusted basis of the building at the start of the measurement period. For substantial buildings, the adjusted-basis prong is the binding test.
Measurement period: 24 months for standard projects, 60 months for projects that the taxpayer designates as a phased rehabilitation (with a phased rehabilitation plan in place before the rehab starts). The clock starts on the day the taxpayer chooses, but typically aligns with construction start.
Bridge financing implications: the bridge must fund qualifying rehab spending inside the 24-month window. Slow draws, lender disputes, or interim work stoppages that push QRE spending past month 24 can disqualify the project from HTC eligibility entirely. The bridge lender's draw approval and disbursement workflow must support the schedule.
Phased rehab option: for very large rehab projects, the 60-month measurement period (with a properly documented phased rehabilitation plan) gives more timing flexibility. The phased plan must be in place at the start of the rehab, not added retroactively.
Practical sponsor process: at deal closing, lock the construction draw schedule against the substantial-rehab measurement period. Build in a buffer (e.g., target QRE spend completion by month 20 to leave a 4-month cushion for delays). The bridge lender, construction lender, and HTC counsel coordinate on draw timing throughout construction.
QRE definition traps: not every dollar of construction spend is a QRE. Land costs, building enlargements, and certain non-rehab expenditures don't count. Misclassified expenditures can leave the project short of the substantial-rehab threshold. Engage HTC counsel and a cost-segregation specialist for QRE tracking.
Sources
- Federal Historic Preservation Tax Incentives (Historic Tax Credit) · U.S. National Park Service, Technical Preservation Services · current
- Partnership Taxation: IRC Subchapter K (Form 1065 Instructions) · U.S. Internal Revenue Service · current