Historic Building Rehabilitation: Standards, Credits, and Recapture

The federal historic building rehabilitation tax credit is worth 20% of your qualified rehabilitation expenditures on a certified historic structure used to produce income, claimed ratably over five tax years once the building is placed in service.¹ Earning it depends on three things happening in the right order: the building qualifying as historic, the work meeting the Secretary of the Interior’s Standards, and your project passing a three-part certification review run by the National Park Service and your State Historic Preservation Office.

Which Buildings Qualify

Two conditions must both be true. The building has to be a certified historic structure, and it has to be used in a trade or business or held for the production of rental income. A personal residence is out.²

A certified historic structure is one of two things: a building individually listed on the National Register of Historic Places, or a building located in a registered historic district and certified by the Secretary of the Interior as contributing to that district.³ Properties inside registered districts are presumed to contribute unless the Secretary certifies otherwise, so a modest warehouse in a registered downtown may qualify even though it would never meet the National Register’s criteria on its own.

Individual National Register listing generally requires a building that is at least fifty years old, retains its physical integrity, and satisfies at least one of four significance criteria: association with important events, association with historically significant people, distinctive architectural or construction character, or the potential to yield important information about history or prehistory.⁴

What the Credit Is Worth and When You Get It

The math is simple: 20% of your qualified rehabilitation expenditures. Spend $500,000 on qualifying work and you earn $100,000 in credits.

The timing is where owners get surprised. Before the Tax Cuts and Jobs Act, you could take the full credit in the year the building was placed in service. Now the credit is spread ratably over five years, meaning you claim 4% of your qualified expenditures each year for five years, starting the year the rehabilitated building enters service.¹ The same law repealed the older 10% credit that had been available for non-historic buildings placed in service before 1936, so only the 20% historic credit remains.²

The Substantial Rehabilitation Test

Doing some work on a historic building is not enough. Your qualified rehabilitation expenditures during a chosen measuring period must exceed the greater of the building’s adjusted basis or $5,000. Adjusted basis is the purchase price less land value, plus prior capital improvements, less depreciation, measured as of the first day of your measuring period or the first day you held the building, whichever is later. Miss the threshold and there is no credit, no matter how good the work.²

The default measuring period is 24 months and must end within the tax year you plan to start claiming the credit. Larger phased projects can use a 60-month measuring period if they meet the applicable requirements.⁵

What Counts as a Qualified Rehabilitation Expenditure

Qualified rehabilitation expenditures are capital costs tied to work on the building itself and depreciable under the tax code. Hard construction costs for walls, floors, roofs, mechanical systems, and interior finishes generally qualify.

Several categories are specifically excluded, and they are the ones that most often distort early budgets:

The cost of acquiring the building, and interest on debt used to buy it.
Enlargement costs. Reconfiguring existing space is fine; adding square footage is not.
Site work such as sidewalks, parking lots, and landscaping.
Leasehold improvements where the remaining lease term on the completion date is shorter than the applicable depreciation recovery period.

On a typical project, land and site improvements can account for 20% to 30% of total spending, so separating qualifying from non-qualifying costs at the budget stage prevents inflated credit expectations from collapsing at tax time.

Rules the Work Must Follow

All rehabilitation work has to comply with the Secretary of the Interior’s Standards for Rehabilitation, codified at 36 CFR Part 67. The National Park Service applies these ten standards when it reviews your project, and they are the yardstick that decides whether the finished job gets certified.⁶

The philosophy behind the Standards is more useful to internalize than the list itself: keep the materials, features, and spaces that give the building its historic character; repair rather than replace whenever possible, and when replacement is unavoidable, match the original in design, color, texture, and materials with documentary evidence; do not fabricate history the building never had; treat later alterations that have themselves become historically significant as things to preserve rather than strip away; use the gentlest cleaning methods that will work; and design any additions or new exterior work so that they are compatible with the building but clearly distinguishable from the historic fabric, and so that removing them in the future would leave the historic building intact.⁷

Projects that treat the Standards as a checklist to satisfy rather than a design philosophy to follow tend to run into trouble on review.

The Three-Part Certification Application

Certification runs through the Historic Preservation Certification Application. The current forms must be dated “(Rev. 6/2023).” The application moves through the State Historic Preservation Office first and then the NPS, roughly 30 days at each stage, so about 60 days per part when the submission is complete and well-documented. Complex or thinly documented submissions take longer.⁸

Part 1: Evaluation of Significance

Part 1 establishes that the building is a certified historic structure. Buildings already individually listed on the National Register can generally skip it. Buildings inside registered districts use Part 1 to confirm that they contribute to the district. Part 1 is a narrative of the building’s history and significance, supported by photographs and maps.

Part 2: Description of Rehabilitation

Part 2 is the substantive review. You describe every element of the planned work in enough detail, with floor plans, specifications, and materials, that NPS reviewers can measure it against the Standards. NPS strongly encourages getting Part 2 approval before construction starts. Owners who begin work first do so at their own risk: if the completed project fails review, there is no credit.⁸

Part 3: Certification of Completed Work

Part 3 comes after construction is finished. NPS confirms that the built result matches what it approved in Part 2. Deviations from the approved plans can produce an outright denial.

Photographs matter more than applicants expect. Clear, high-resolution color photos of the exterior, interior, site, and surroundings must be taken before any work begins, captioned, and keyed to a site plan and to the proposed work description. Reviewers cannot approve changes to features they have never seen, and thin pre-construction photography is one of the most common reasons applications stall.⁹

NPS charges a processing fee for Parts 2 and 3, based on estimated rehabilitation costs, and will not begin review until the fee is paid.¹⁰

Recapture: The Five-Year Holding Rule

Earning the credit and keeping it are two different problems. If you sell the building or stop using it in a business within five years of placing it in service, the IRS recaptures part of the credit on a sliding scale:²

Less than 1 year: 100% recapture
1 to 2 years: 80%
2 to 3 years: 60%
3 to 4 years: 40%
4 to 5 years: 20%

After five full years, recapture risk is gone.¹¹ Because the credit is claimed ratably over five years and the holding period also runs five years, an early sale can hit you twice: recapture on what you have already claimed, plus forfeiture of the remaining annual installments you had not yet taken.

Passive Activity Limits for Individual Owners

Individual taxpayers face one more constraint that corporations do not. For most rental rehabilitation projects the credit is a passive activity credit. Individuals with modified adjusted gross income below $200,000 can use the tax-credit equivalent of up to $25,000 in passive losses. Between $200,000 and $250,000 the allowance phases out. Above $250,000, unused credits are suspended and carried forward until income drops or passive income rises to absorb them.²

This is why large rehabilitation projects are commonly structured as syndications. The owner forms a partnership or LLC and brings in a corporate investor as a limited partner. The corporation contributes equity in exchange for the credits, which it can use without passive activity restrictions. The structure adds legal cost, but for individual owners who cannot personally use the credits, it turns a paper benefit into project capital.

State Credits That Layer On Top

Many states offer their own historic rehabilitation credits that stack with the federal 20%. Credit percentages, project caps, eligible property types, and whether credits are refundable or transferable vary by state, and some states extend credits to owner-occupied homes that do not qualify federally. Terms change as legislatures adjust their programs, so confirm current details with your State Historic Preservation Office before finalizing a budget. Stacked credits can offset a meaningful share of total project cost and turn otherwise marginal projects into viable ones.

1
Office of the Law Revision Counsel. 26 USC 47 – Rehabilitation Credit
2
Internal Revenue Service. Rehabilitation Credit (Historic Preservation) FAQs
3
eCFR. 36 CFR 67.4 – Certifications of Historic Significance
4
eCFR. 36 CFR 60.4 – Criteria for Evaluation
5
Internal Revenue Service. Rehabilitation Credit
6
National Park Service. The Secretary of the Interior’s Standards for Rehabilitation
7
eCFR. 36 CFR Part 67 – Historic Preservation Certifications Under the Internal Revenue Code – Section: 67.7 Standards for Rehabilitation
8
National Park Service. Historic Preservation Certification Application
9
National Park Service. Documentation Requirements for Certification Applications
10
National Park Service. Application Fees – Historic Preservation Tax Incentives
11
Internal Revenue Service. Rehabilitation Credit – Recapture