Retirement Taxes in Connecticut (2025)
Tax-friendly. Income tax: graduated, 2%–6.99%. Social Security: taxed above $75,000 AGI (single) / $100,000 (joint); exempt below. Retirement account withdrawals: same exemption applies to IRA withdrawals.
Seeded with roughly 11% — about 10% effective federal plus an estimated 0.5% Connecticut tax on retirement withdrawals. Change it to your own rate.
What Connecticut taxes in retirement
| State income tax | Graduated, 2%–6.99% |
|---|---|
| Social Security | Taxed above $75,000 AGI (single) / $100,000 (joint); exempt below |
| 401(k) and IRA withdrawals | Same exemption applies to IRA withdrawals |
| Pensions | Fully exempt below those same income thresholds |
| Estate or inheritance tax | Estate tax, exemption matched to the federal amount; also the only state gift tax |
| Average combined sales tax | 6.35% |
| Average effective property tax | 1.78% of home value |
Connecticut looks unfriendly and is not, below the income thresholds — a retiree under $75,000 of AGI pays essentially no state tax on retirement income. Above them the picture changes quickly, and property taxes are high throughout.
What the state tax actually costs you
Take a $500,000 balance and withdraw $2,500 a month, rising with inflation. At an effective federal rate of 10% alone, the money lasts about 18.8 years. Add Connecticut's estimated 0.5% and it lasts about 18.5 years — a difference of roughly 0.3 years.
That is the honest scale of it. State income tax is real money, but for most retirees it changes the answer by months or a couple of years, not decades — and it is usually smaller than the effect of housing costs, which is why a move made purely for income tax often fails to pay for itself.
The taxes that are not income tax
Retirees feel sales and property tax more than working-age households do, because a larger share of a fixed income goes on spending and on staying in a house that is already owned. Connecticut charges an average combined sales tax of about 6.35% and levies an average effective property tax of about 1.78% of a home's value, which is above the national average.
On death: estate tax, exemption matched to the federal amount; also the only state gift tax. State thresholds are frequently far below the federal exemption, so an estate that owes nothing federally can still owe here — a house plus a retirement portfolio is often enough to cross the line.
Should you move for the tax?
Compare the whole burden rather than one line of it. States without an income tax raise the money elsewhere — Texas and New Hampshire through property tax, Tennessee and Washington through sales tax — so the saving is often smaller than the headline suggests. Run your own numbers in the calculator above, then look at what the same house costs in each state, what insurance costs, and how far you would be from family and from the specialists you already use.
Establishing residency is also a formal exercise, not a preference: high-tax states audit departing retirees on days present, driver's licence, voter registration, where the primary home is, and where a doctor and a dentist are. Half-measures lose.
Frequently asked questions
Does Connecticut tax Social Security benefits?
Taxed above $75,000 AGI (single) / $100,000 (joint); exempt below. Connecticut is one of only eight states that still tax Social Security at all, and the income thresholds mean many retirees pay nothing. See which states tax Social Security.
Does Connecticut tax 401(k) and IRA withdrawals?
Same exemption applies to IRA withdrawals. Pensions are treated separately — Fully exempt below those same income thresholds.
Is Connecticut a good state to retire in for taxes?
Tax-friendly on income tax. We estimate roughly 0.5% effective state tax on $40,000 a year of withdrawals for a 65-year-old single filer. Average combined sales tax is about 6.35% and effective property tax about 1.78% of home value. Estate or inheritance tax: estate tax, exemption matched to the federal amount; also the only state gift tax.
Does Connecticut have an estate or inheritance tax?
Estate tax, exemption matched to the federal amount; also the only state gift tax. This is separate from the federal estate tax and often has a much lower threshold, so it can reach estates that owe nothing federally.
Other tax-friendly states
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SavingsLast calculators are educational estimates. They assume a constant average return and steady inflation; real markets are volatile and sequence-of-returns risk can shorten how long money lasts. Nothing here is financial, investment, tax, or legal advice. Consult a qualified professional before making decisions.
Reviewed for the 2025 tax year. Several states are part-way through scheduled rate cuts or phase-outs, and thresholds are often indexed annually — confirm current figures with the Connecticut tax agency (listed at taxadmin.org) or a tax professional before acting. The effective-rate estimate is a planning figure, not a filing figure.