Federal Credit Guide · Updated September 2026

Federal Historic Tax Credit (HTC)

20% of qualified rehabilitation expenditures on a certified historic structure — the anchor credit of our practice, and the base that every state program layers onto.

Value My Historic Project's Credits

Federal Historic Tax Credit (HTC) — 20%

What it is: A credit equal to 20% of qualified rehabilitation expenditures for certified historic structures, claimed ratably over five years. Certification runs through the three-part National Park Service application (Parts 1, 2 and 3) via your State Historic Preservation Office.
Quick Facts
Credit amount20% of qualified rehabilitation expenditures (QREs)
How claimedRatably over five years, beginning when the building is placed in service
EligibilityCertified historic structure — National Register, individually or contributing to a district; substantial rehabilitation test (QREs exceed adjusted basis); income-producing use
ProcessPart 1 (significance) → Part 2 (proposed work) → Part 3 (completed work), reviewed by SHPO and the National Park Service
StatusPermanent — unchanged by the 2025 tax law
Stacks withSC textile mill and abandoned buildings credits; NC, SC and VA state historic credits; LIHTC; NMTC

This is the anchor credit of our practice — the program behind every Carolina textile mill we have financed. The federal 20% rarely works alone: layered with South Carolina’s, North Carolina’s or Virginia’s state credits, qualifying projects can recover 40% to 60% of rehabilitation costs.

Family offices should note the passive-income planning angle — see our article on offsetting passive income with the HTC.

The schedule risk is the certification, not the construction. Parts 1 and 2 typically run several months through SHPO and NPS review and should be filed before construction starts; work done before Part 2 approval is at risk.

Our role as syndicator

We shepherd the Parts 1 through 3 process, prepare the projections, structure the federal and state stack, and bring the investor — then hand off to our partner CPA firm for cost certification. Moxie Investment Funds invests directly in HTC projects, including dozens of Carolina mills.

Assess my historic building

Official references: IRC §47; National Park Service Technical Preservation Services; your state SHPO.

Federal Historic Tax Credit FAQ

What is the federal historic rehabilitation tax credit?

A credit equal to 20% of qualified rehabilitation expenditures for the certified rehabilitation of a certified historic structure, claimed ratably over five years beginning when the building is placed in service.

What is the substantial rehabilitation test?

Qualified rehabilitation expenditures must exceed the adjusted basis of the building, generally measured over a 24-month period (or 60 months for a phased project under an architectural plan).

How long does the certification process take?

Parts 1 and 2 typically run several months through State Historic Preservation Office and National Park Service review, and should be filed before construction begins. Work completed before Part 2 approval is at risk of not qualifying.

Does my building have to be on the National Register?

It must be a certified historic structure, which means listed individually on the National Register or certified as contributing to a registered historic district. A nomination can run in parallel with project planning.

Which state credits stack on the federal HTC?

In our markets: the South Carolina historic, textile mill and abandoned buildings credits; the North Carolina Article 3L historic credit or the Article 3H mill credit (one or the other); and the Virginia historic rehabilitation credit.

Get a Free Historic Credit Assessment

Thirty Years of Historic Rehabilitations.

From Carolina textile mills to landmark downtown buildings. Send us the property and we will tell you what it is worth.