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Historic Rehabilitation Tax Credit in Connecticut 2026

Calculate your historic rehabilitation tax credit tax savings in Connecticut. With Connecticut's 6.99% top state tax rate, your combined savings are higher.

Connecticut Tax Overview

State Income Tax
6.99%
progressive
Sales Tax
6.35%
avg combined: 6.35%
Property Tax Rate
1.96%
Median Income
$90,213

No standard deduction. Estate tax. Very high property taxes (1.96%).

Connecticut Income Tax Brackets (Single)

3%
$0 - $10,000
5%
$10,000 - $50,000
5.5%
$50,000 - $100,000
Your bracket
6%
$100,000 - $200,000
6.5%
$200,000 - $250,000
6.9%
$250,000 - $500,000
6.99%
$500,000 +
$5,000
Est. Total Savings
No Limit
Max Deduction
Tax Credit
Deduction Type
27.5%
Combined Tax Rate

Historic Rehabilitation Tax Credit Savings Calculator for Connecticut

$
$

Federal Savings

$5,000

22% bracket

Connecticut State

$0

5.5% rate

Total Savings

$5,000

27.5% combined

Tax credits reduce your tax bill dollar-for-dollar, regardless of your tax bracket.

Savings by Tax Bracket in Connecticut

10%
$5,000
12%
$5,000
22%
$5,000
24%
$5,000
32%
$5,000
35%
$5,000
37%
$5,000

Includes 5.5% Connecticut state tax on top of federal savings.

Eligibility Requirements

Owners of certified historic structures who undertake substantial rehabilitation

  • 120% credit for certified historic structures
  • 2Must be a substantial rehabilitation (exceed adjusted basis)
  • 3Must follow Secretary of Interior's Standards

Connecticut residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 6.99%.

Common Mistakes to Avoid

  • !Not getting Part 1 certification before starting work
  • !Failing to meet the substantial rehabilitation test
  • !Not spreading credit over 5 years as required
  • !Forgetting to claim the deduction on your Connecticut state return (missing up to 6.99% additional savings)

Connecticut Filing Tips

Personal exemption credits phase out at higher incomes. A 'recapture' tax can push effective rates above stated brackets. Consider the high property tax when evaluating total cost of living.

Required Tax Forms

Form 3468NPS Form 10-168

File these forms with your federal tax return to claim the historic rehabilitation tax credit. Connecticut may require additional state-specific forms.

Other Tax Deductions in Connecticut

Mortgage Interest Deduction

Housing

~$4,375
est. savings

Property Tax Deduction

Housing

~$2,750
est. savings

Home Office Deduction

Housing

~$1,500
est. savings

Home Energy Tax Credit

Housing

~$1,800
est. savings

Residential Solar Tax Credit

Housing

~$7,500
est. savings

Military Moving Expenses

Housing

~$5,000
est. savings

PMI Premium Deduction

Housing

~$1,375
est. savings

Mortgage Points Deduction

Housing

~$2,500
est. savings

Historic Rehabilitation Tax Credit in Neighboring States

New York

10.9% top rate (progressive)

~$15,000
+10,000 vs Connecticut

Massachusetts

5% top rate (flat)

~$15,000
+10,000 vs Connecticut

Rhode Island

5.99% top rate (progressive)

~$15,000
+10,000 vs Connecticut

Tax Calculators for Connecticut Cities

BridgeportStamfordNew HavenHartfordWaterburyNorwalkDanburyNew BritainWest HartfordGreenwich

Calculate Your Full Tax Savings in Connecticut

Use our free tax calculators to optimize your entire tax return for Connecticut.

Income Tax CalculatorConnecticut Income TaxFull Historic Rehabilitation Tax Credit Guide

Frequently Asked Questions

How much can I save with the Historic Rehabilitation Tax Credit in Connecticut?

In Connecticut, the historic rehabilitation tax credit can save you an estimated $5,000 per year on a $5,000 deduction. This includes $5,000 in federal tax savings and $0 in Connecticut state tax savings at the 5.5% marginal rate. The national average savings is $15,000/year.

What is the Connecticut state income tax rate?

Connecticut has a progressive income tax system with a top rate of 6.99%. No standard deduction. Estate tax. Very high property taxes (1.96%).

Who qualifies for the Historic Rehabilitation Tax Credit in Connecticut?

Owners of certified historic structures who undertake substantial rehabilitation. The eligibility requirements are the same whether you live in Connecticut or another state, as this is a federal tax credit. However, your total savings will vary based on Connecticut's 6.99% top state tax rate.

What tax forms do I need to claim the Historic Rehabilitation Tax Credit in Connecticut?

To claim the historic rehabilitation tax credit, you need to file Form 3468 and NPS Form 10-168 with your federal return. Connecticut residents should also check if the state allows this deduction on their state return for additional savings of up to 6.99%. Filing status affects your deduction limits and tax bracket.

Is the Historic Rehabilitation Tax Credit better in Connecticut than in states without income tax?

Yes, Connecticut residents benefit more because the state's 6.99% top income tax rate means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 27.5% means more savings per dollar deducted.

What is the standard deduction in Connecticut for 2026?

Connecticut's standard deduction is $0 for single filers and $0 for married filing jointly. Personal exemption credits phase out at higher incomes. A 'recapture' tax can push effective rates above stated brackets. Consider the high property tax when evaluating total cost of living.

Related Calculators

Mortgage Interest Deduction in Connecticut

Avg savings: $3,500/year

Property Tax Deduction in Connecticut

Avg savings: $2,200/year

Home Office Deduction in Connecticut

Avg savings: $1,200/year

Home Energy Tax Credit in Connecticut

Avg savings: $1,800/year

Residential Solar Tax Credit in Connecticut

Avg savings: $7,500/year

Military Moving Expenses in Connecticut

Avg savings: $4,000/year