Connecticut SALT Deduction Calculator 2026

Connecticut residents face a combination of moderate-to-high state income taxes and some of the highest property taxes in the country. The old $10,000 SALT cap was particularly impactful for Connecticut homeowners, and the increase to $40,400 provides meaningful relief.

Connecticut's Income Tax Structure

Connecticut has a progressive income tax with rates ranging from 3% to 6.99%. The state also applies a "recapture tax" that can increase the effective rate for higher-income earners. For a household earning $180,000, state income tax typically falls in the range of $5,500 to $7,500 depending on filing status and deductions.

Connecticut's High Property Taxes

Connecticut has one of the highest average effective property tax rates in the nation at approximately 2.14%. Property taxes in Connecticut are set by individual municipalities using a "mill rate" system. Towns like Greenwich, Westport, Darien, and other Fairfield County communities have median property tax bills exceeding $10,000 annually. Even in mid-range areas, annual property tax bills of $7,000 to $12,000 are common.

Worked Example: CT Couple Earning $180,000

Consider a married couple living in Connecticut earning $180,000 combined:

• CT State Income Tax: ~$6,500
• Property Tax: ~$9,000
• Total SALT: $15,500

Under the old $10,000 cap, they could only deduct $10,000 of their $15,500 in SALT payments. Under the new $40,400 cap, they can deduct the full $15,500. That's an additional $5,500 in deductions. At the 22% federal tax bracket, this translates to approximately $1,210 in annual tax savings.

Why Connecticut Residents Benefit from the SALT Increase

Connecticut's high property taxes, combined with its income tax, mean that most homeowners in the state exceed the old $10,000 SALT cap. Property taxes alone often consume the entire old deduction limit. The increase to $40,400 allows Connecticut residents to deduct both their property taxes and state income taxes more fully. This is particularly impactful in the wealthy suburbs of Fairfield County, where many residents commute to New York City and face both high Connecticut property taxes and substantial state income taxes.

Source: Connecticut Department of Revenue Services