Connecticut tools
Find Connecticut-specific tax calculators for income tax, refund timelines, withholding, and deductions. These tools map local rules to clear, IRS-aligned outputs for 2025-2026.
Quick links to the most-used state calculators for Connecticut.
Property tax deduction estimator (federal) (CT)
Search intent: Connecticut property tax deduction
SALT deduction optimizer (federal impact) (CT)
Search intent: Connecticut SALT deduction cap workaround
State Social Security taxability checker (CT)
Search intent: does Connecticut tax social security
State capital gains tax estimator (CT)
Search intent: Connecticut capital gains tax calculator
State estimated tax (quarterly) calculator (CT)
Search intent: Connecticut estimated tax calculator
State income tax calculator (CT)
Search intent: Connecticut state income tax calculator
State paycheck withholding calculator (CT)
Search intent: Connecticut paycheck withholding calculator
State refund timeline estimator (CT)
Search intent: Connecticut tax refund status time
State retirement income taxability checker (CT)
Search intent: does Connecticut tax retirement income
State standard deduction & credits finder (CT)
Search intent: Connecticut standard deduction 2025
State tax notice/letter decoder (CT)
Search intent: Connecticut tax notice letter code
State unemployment income taxability checker (CT)
Search intent: does Connecticut tax unemployment income