Historic Tax Credit Calculator

Federal and state historic preservation tax credits.

Qualified expenses ($)

State credit %

Adjusted basis ($)

NR listed (0 or 1)

Tab to move between fields

Federal HTC ($)

$100,000

State credit ($)$125,000

Total credits ($)$225,000

Net cost ($)$275,000

Effective discount (%)45

Substantial test (0/1)1

How to Use This Calculator

Enter Qualified Rehabilitation Expenditures (QRE) — these are eligible costs directly related to rehabilitating the historic building.
Set NR listed to 1 if the building is on the National Register of Historic Places, which is required for the 20% federal credit.
Enter Adjusted basis ($) to verify the project passes the Substantial Rehabilitation Test (QRE must exceed adjusted basis).
Input your state's State credit % — this varies widely by state (0–45%); check your SHPO for current rates.
Review Federal HTC and State credit outputs to calculate the total tax benefit for the development pro-forma.
Use Net cost and Effective discount (%) to understand the true all-in cost of the rehabilitation after credits.

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