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 ($)

$100,000.00

≈ 9 years of state college

State credit ($)$125,000.00

Total credits ($)$225,000.00

Net cost ($)$275,000.00

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.

How the result changes with Qualified expenses ($)

Qualified expenses ($): Qualified Rehabilitation Expenditures (QRE).
State credit %: State historic tax credit percentage (varies by state).
Adjusted basis ($): Adjusted basis of the building (for substantial rehabilitation test).
NR listed (0 or 1): 1 = National Register listed (required for 20% federal credit).

Identify Input Parameters
4 parameters
Qualified expenses ($) = 500000, State credit % = 25, Adjusted basis ($) = 200000, NR listed (0 or 1) = 1 = 4 input(s) provided
Calculate Federal HTC
Federal HTC = round(qualifiedExpenses * (federalCreditPct / 100))
100000 = $100,000
Calculate State credit
State credit = round(qualifiedExpenses * (stateCreditPct / 100))
125000 = $125,000
Calculate Total credits
Total credits = federalCredit + stateCredit
225000 = $225,000