State retirement tax · Connecticut
Retirement tax rules for Connecticut residents (2026 guide)
Connecticut's effective income-tax rate at retirement-bracket income is approximately 5.50%. Here's what it taxes, what it exempts, and how the worked numbers shake out.
Last reviewed May 3, 2026
Editorial review pending — see editorial process
Effective rate
5.50%
Taxes Social Security?
Yes
Approx. tax on $90k income
$4,950
Pension carve-outs
Yes
Connecticut is in the most-burdened bracket for retirees: a high effective income tax (about 5.50%) AND continued taxation of Social Security. If your retirement income is meaningfully above the median, the state-tax cost runs into five figures annually — enough that some retirees relocate purely for the tax differential.
What Connecticut taxes (and what it doesn’t)
Connecticut taxes most retirement income — including 401(k) and IRA withdrawals, pension payments, and Social Security benefits — at the state's standard income-tax rate. There are typically threshold-based exemptions that protect lower-income retirees from the SS tax, but middle-income households and above face the full bracket.
State-specific note
Taxes SS above $75k single / $100k joint. Pension/IRA income partially excluded based on income.
A worked example
Worked example. A Connecticut retiree with $60,000 of pension and IRA withdrawals plus $30,000 of annual Social Security is taxed on the full $90,000 of income. At the approximate 5.50% effective rate, that's about $4,950/year — roughly $413/month — owed to the state.
Should you relocate?
Connecticut's high effective rate is the most-cited reason retirees consider relocating. Before moving, model both your before-tax cost of living and the tax-bracket arbitrage carefully — a $15K/year tax saving can be eaten by a $1.5M home purchase in the destination market.
See how Connecticut state tax shapes your retirement plan
The calculator’s Taxes tab uses the 5.50% effective rate above and the SS-exemption flag automatically. Run your specific numbers and see the year-by-year tax forecast.
Run my numbersFrequently asked
Does Connecticut tax my Social Security?
Yes. Connecticut is one of seven states that still tax Social Security benefits in 2026 — though most have income-threshold exemptions that protect lower-income retirees. Taxes SS above $75k single / $100k joint. Pension/IRA income partially excluded based on income.
What's the effective state tax rate on my retirement income?
Connecticut's approximate effective rate for retirement-bracket income is 5.50%. For a $90k retirement income with $30k of Social Security, you'd owe roughly $4,950/year in state tax. Real liability varies with bracket structure, age-based exclusions, and pension carve-outs.
Should I relocate to Connecticut for retirement?
It depends on the size of your retirement income, the destination state's effective rate, and your moving costs. The state-tax differential alone is rarely the decisive factor for normal-income retirees. For households with $1M+ retirement income, multi-year tax-arbitrage savings can exceed $20k/year — enough to drive the decision.
Are pension benefits taxed differently in Connecticut?
Many states have specific carve-outs for pension income — particularly for public-sector pensions (teachers, firefighters, police, military). Taxes SS above $75k single / $100k joint. Pension/IRA income partially excluded based on income. Yearfold's calculator uses an effective-rate approximation; real liability may be lower if you qualify for a pension exclusion.
Does this apply to property tax too?
No. This page covers state INCOME tax only. Property tax in Connecticut is set by local jurisdictions (county / city / school district) and varies dramatically within the state. For a complete retirement-cost picture, consult your specific county's tax assessor.
Primary sources
Effective-rate and SS-taxation flags above are derived from these sources. We re-verify each annually.
Related reading
Kansas retirement tax rules
Comparable effective rate (5.40% vs 5.50%).
Oregon retirement tax rules
For perspective from a different tax tier.
Kansas retirement tax rules
An example of a state that does NOT tax Social Security.
Run my numbers
The calculator's Taxes tab uses the same per-state effective rate.
How the Monte Carlo actually works
2,000-word methodology page — covers state tax modelling.