Retiring in Connecticut: What the State Actually Takes

On the ordinary retirement profile — $34,000 of Social Security and $61,000 of plan distributions — Connecticut takes $4,475 a year in state income tax.

That is the number people compare, and it is the smallest of three. Property tax adds about $8,779 on the state's $485,000 median home, and insurance another $2,690. The three together come to $15,944, placing Connecticut the most expensive state in the country on these three lines.

A note before you start. This is general education, not tax advice. Every Connecticut figure comes from this site's own fifty-state income-tax dataset and its retirement tax engine, computed for a single filer aged 70 unless stated otherwise; property tax, median home price and insurance figures come from the site's core state dataset. Rates are for tax year 2025. Property tax is assessed locally in most states, so the effective rate here is a statewide figure rather than your county's.

1. What Connecticut takes from retirement income

On Social Security. Connecticut is one of the eight states still taxing Social Security in 2026. The filing-status grouping is the thing most lists get wrong, and it was read off the return rather than assumed: Head of household is grouped with married filing jointly at $100,000, not with single at $75,000. Connecticut's own wording is that benefits are fully exempt 'if your required filing status is single or married filing separately and the amount reported on Form CT-1040, Line 1, is less than $75,000; or married filing jointly, qualifying surviving spouse, or head of household and the amount reported on Form CT-1040, Line 1, is less than $100,000.' Note also that married-separate sits at $75,000 with single rather than at half the joint figure. The threshold is measured against federal adjusted gross income — Form CT-1040 Line 1 is federal AGI, which is why thresholdBasis is federal-agi and not the state's own figure. Below the threshold the entire federally taxable benefit reported on federal Form 1040 Line 6b is subtracted. At or above it the benefit is partially exempt, not fully taxed: Connecticut's Social Security Benefit Adjustment Worksheet leaves 25% of the federally taxable benefit in the Connecticut base, so 75% remains exempt at every income level.

On 401(k) and IRA distributions. Who qualifies: a filer whose federal AGI is under $100,000 (single, married filing separately, head of household) or under $150,000 (married filing jointly). Above those AGI limits the subtraction is unavailable and the distribution is fully taxed. What is covered: Connecticut runs 401(k), 403(b), 457(b), defined benefit pensions and non-Roth IRA distributions through the same Pension or Annuity Income subtraction, but IRAs are on a separate phase-in schedule from pensions and this is the single most consequential detail here. For tax year 2025 the calculation takes the full taxable pension and annuity amount (federal Form 1040 Line 5b) and adds only 75% of the taxable IRA distribution (federal Form 1040 Line 4b). The IRA percentage has been stepping up annually and reaches 100% for tax year 2026 — so a 2025 filer excludes three-quarters of an IRA withdrawal while a 2026 filer excludes all of it. What is expressly outside the calculation: Roth IRA distributions, disability pensions received before the employer's minimum retirement age, and corrective distributions of excess deferrals — none are added in.

2. The rule that decides your Connecticut bill

Private and public pensions are treated the same in Connecticut's general Pension or Annuity Income subtraction — both are AGI-gated at federal AGI under $100,000 (single, married-separate, head of household) or under $150,000 (married filing jointly), with no dollar cap once eligible. Connecticut has no general government-pension exemption of the kind many states offer. Two real exceptions, running in opposite directions. (1) military retirement pay is 100% exempt, with NO age condition and NO income limit — it is subtracted in full on its own line of Schedule 1 for a retired member of the armed forces of the United States or the National Guard, and for a beneficiary receiving survivor benefits under an option or election made by a deceased retired military member. One boundary worth naming: payments received by a former spouse of a retired military member under a divorce, dissolution, annulment or legal separation decree, or a court-ordered property settlement dividing military retirement pay, DO not qualify for the exclusion. Tier 1 and Tier 2 railroad retirement benefits are likewise fully exempt on their own line. (2) Connecticut Teachers' retirement System pay gets only 50%, and it is an either/OR rather than an addition: a retired teacher may claim either the 50% teachers' pension subtraction or the general pension and annuity subtraction, not both.

Connecticut taxes Social Security only above federal AGI of $75,000 (single, married-separate) or $100,000 (joint, qualifying surviving spouse, head of household), and even then leaves 75% of the benefit exempt — it is never fully taxed.

Military retirement pay and railroad retirement are 100% exempt with no age or income test; Connecticut teachers' retirement pay gets 50% and cannot be combined with the general pension subtraction.

3. What Connecticut charges at three income levels

The same state, three retirements. All figures are for a single filer aged 70.

The marginal rate at the typical profile is 5.5%. That is what an extra dollar of distribution costs — a larger number than the 4.7% effective rate, and the one that matters when deciding how much to withdraw.

A married couple with $48,000 of Social Security and $62,000 of distributions pays $4,550.

4. Property tax, and why it lands harder in retirement

An effective rate of 1.8% on the state's $485,000 median home is about $8,779 a year.

For a retiree this is a harder cost than income tax, and the reason is structural: property tax is levied on the house, while retirement income falls. A bill sized to a working income arrives every year after the income has gone.

It is also assessed locally almost everywhere, so a statewide effective rate conceals real variation between counties. Treat the figure above as the state's shape rather than as your bill.

Connecticut does have a homestead provision, and it is the one lever on this line worth understanding.

Connecticut's 'homestead exemption' is not an annual property-tax reduction like FL's or TX's — it is a creditor/bankruptcy protection under Connecticut General Statutes Sec. 52-352b, which shields a defined amount of equity in an individual's owner-occupied primary residence from most judgment creditors (it does not protect against foreclosure by a mortgage lender or against IRS/tax liens, and CT does not require recording a homestead declaration the way some other states do). The exemption amount was substantially raised by a 2021 legislative increase (Public Act 21-161, effective Oct. Separately, Connecticut does offer a genuine annual property-tax relief program for qualifying elderly (65+) and totally disabled homeowners under CGS Sec.

Two things about homestead rules catch people out after a move. They almost always require the property to be your primary residence, which a snowbird splitting the year has to be able to demonstrate. And several states require an application to the county rather than granting it automatically — a benefit you qualify for and never claimed is worth nothing.

5. Insurance, the line nobody prices

Average home insurance in Connecticut: $2,690 a year — 27th cheapest of the fifty states.

This is the line almost no retirement comparison includes, and across the country it varies more than income tax does: from Hawaii's $900 to Florida's $8,375, a ninefold spread.

For a retiree it behaves like a second property tax. It rises independently of income, a fixed-income household absorbs the whole increase, and it is a condition of the mortgage if you still have one.

6. What retiring in Connecticut actually costs

Income tax on the typical retirement profile, plus property tax and insurance on each state's own median home. Connecticut is shown against its own neighbours in the ranking, and against the extremes.

Connecticut comes to $15,944, the most expensive state in the country on these three lines.

Income tax is 28% of that total. It is the line every comparison leads with and, here, not the largest of the three.

One large caveat, and it matters. Each row uses that state's own median home, and those differ a great deal. So this compares the typical house in each state, not the same house in each state — buying below a state's median improves its figure materially.

7. No special treatment, and what that simplifies

Connecticut gives retirement income no special treatment. Distributions are taxed as ordinary income at the ordinary schedule, with no age trigger, no source distinction and no phase-out to plan around. Who qualifies: a filer whose federal AGI is under $100,000 (single, married filing separately, head of household) or under $150,000 (married filing jointly). Above those AGI limits the subtraction is unavailable and the distribution is fully taxed. What is covered: Connecticut runs 401(k), 403(b), 457(b), defined benefit pensions and non-Roth IRA distributions through the same Pension or Annuity Income subtraction, but IRAs are on a separate phase-in schedule from pensions and this is the single most consequential detail here. For tax year 2025 the calculation takes the full taxable pension and annuity amount (federal Form 1040 Line 5b) and adds only 75% of the taxable IRA distribution (federal Form 1040 Line 4b). The IRA percentage has been stepping up annually and reaches 100% for tax year 2026 — so a 2025 filer excludes three-quarters of an IRA withdrawal while a 2026 filer excludes all of it. What is expressly outside the calculation: Roth IRA distributions, disability pensions received before the employer's minimum retirement age, and corrective distributions of excess deferrals — none are added in. That simplicity cuts both ways. There is nothing to lose by withdrawing more in one year than another, and nothing to gain by waiting — which makes Connecticut an unusually clean state to plan a withdrawal order in, even though it is not a generous one.

8. What a Roth conversion costs in Connecticut

Converting $50,000 to a Roth costs an extra $2,975 in Connecticut tax — 6 cents on the dollar.

These are computed, not read off the bracket table, which matters because a conversion large enough to be worth making usually leaves the bracket it started in.

The state's share is the part you can move. Convert in a year you are resident somewhere with no income tax and it is zero; convert here and it is 6%. The federal tax is due either way.

9. What part-time work costs here

$20,000 of part-time work costs an extra $1,175 in Connecticut tax — an effective 5.9% on the earnings.

Compare that with the 6% a Roth conversion costs. Earned income is the cheaper dollar here, which is unusual.

Two federal rules apply on top and neither depends on your state. Earnings can raise the taxable share of Social Security, and claiming before full retirement age exposes you to the federal earnings test.

10. The order to draw your accounts in

The order you draw accounts in is worth real money, and the right order depends on the state.

Connecticut applies the same treatment whenever you withdraw, so the order is a federal question rather than a state one — with the exception that the marginal rate is 5.5%, and a year of unusually high withdrawals pays that on the excess.

Smoothing withdrawals across years therefore beats lumping them, modestly. Take a large one-off distribution in a single year and it climbs the bracket schedule; spread the same amount over three and more of it stays low.

Required minimum distributions overrule all of this from 73 onward. Once they begin you must take the calculated amount whether the order suits you or not, which is the argument for drawing down or converting the pre-tax balance in the years before.

11. Or move across the state line

For most people the real alternative to Connecticut is not Wyoming — it is the state on the other side of the line, near the same family, the same doctors and the same weather.

Rhode Island is the cheapest of the group at $8,897, $7,047 below Connecticut. Whether that is worth a move is a question about your life rather than your spreadsheet — but it is the comparison worth running, because it is the one you could actually act on.

One thing this table cannot show is the county. Property tax is set locally, and the spread inside a single state is routinely wider than the gap between two neighbouring states. A border move to a cheaper state and an expensive county can leave you worse off.

12. If you are moving to Connecticut from somewhere else

The eight most populous states people leave, measured against Connecticut on the same three lines.

Connecticut is cheaper than 0 of these eight. The move is not obviously about cost, on these lines.

A move is not free, and this table does not price it. Transaction costs on both houses run to several per cent of the sale price, and at typical values that is often more than the first two or three years of the saving.

Connecticut charges a transfer tax on the purchase itself — 1%, customarily paid by the seller. On the state's $485,000 median home that is about $4,850, once, at the point of sale. Closing costs here run about 2% to 4% of the price — $9,700 to $19,400 on the median home, which is the real entry fee for the annual saving this article has been describing.

13. Military retired pay is treated differently

Connecticut exempts military retired pay while taxing an identical private pension $2,000.

Fourteen states do this. It is a deliberate policy of competing for military retirees, who often leave service in their forties with a pension and a second career ahead of them.

If your retirement income is a private employer pension, you are the category this state is least generous to — and the comparison that matters to you is not the one a military retiree would run.

14. What Connecticut does not exempt you from

The federal system, entirely. This is the commonest misunderstanding about state retirement taxation, and it is worth stating plainly.

Required minimum distributions still apply. The amount is federal — your prior-year balance divided by an IRS life expectancy factor — and identical in all fifty states. A state changes what the distribution costs you, not whether you must take it.

Social Security is still federally taxable, on the federal provisional-income calculation, whatever your state does with it.

IRMAA still applies, with its two-year lag. A large conversion or distribution raises a Medicare premium two years later regardless of address.

And capital gains are still federally taxed. What Connecticut adds on top is a separate question from what the federal system takes.

15. Establishing that you actually live here

Any state tax advantage is worth nothing until Connecticut is your domicile, and the state you left may disagree about when that happened.

High-tax states audit departing residents. The question is not whether you own a home here; it is whether you genuinely abandoned the old domicile. Days spent in each state, voter registration, vehicle registration, where your doctors are and where you claim a homestead all bear on it.

The snowbird case is the risky one. Splitting the year between two states while keeping a home in both is exactly the profile a residency audit is built for. If a plan depends on the saving, count the days from the first year rather than reconstructing them afterwards.

16. Who Connecticut actually suits

A military retiree, whose pension is exempt here while a private one is not.

It suits an affluent retiree least. At the affluent profile the bill is $9,550, and whatever exclusion helps a modest income has stopped helping by then.

And it suits someone buying below the median, because $8,779 of property tax on the median home is the largest single line in this article.

17. What to check before you decide

Get your county's actual property tax rate, not the state average. Property tax is levied locally almost everywhere, and the spread inside a state is often wider than the spread between states.

Get a real insurance quote on a real address. $2,690 is the state average; construction, roof age and exposure move it a long way.

Work out your own income tax rather than using the profile above. $95,000 split one way is not $95,000 split another, and in Connecticut the mix between Social Security and distributions changes the answer.

And check what your current state actually charges you before assuming it is worse. On these three lines the ranking surprises people in both directions.

Frequently asked questions

Does Connecticut tax Social Security? No. Connecticut is one of the eight states still taxing Social Security in 2026. The filing-status grouping is the thing most lists get wrong, and it was read off the return rather than assumed: Head of household is grouped with married filing jointly at $100,000, not with single at $75,000. Connecticut's own wording is that benefits are fully exempt 'if your required filing status is single or married filing separately and the amount reported on Form CT-1040, Line 1, is less than $75,000; or married filing jointly, qualifying surviving spouse, or head of household and the amount reported on Form CT-1040, Line 1, is less than $100,000.' Note also that married-separate sits at $75,000 with single rather than at half the joint figure. The threshold is measured against federal adjusted gross income — Form CT-1040 Line 1 is federal AGI, which is why thresholdBasis is federal-agi and not the stat

Does Connecticut tax 401(k) or IRA withdrawals? Who qualifies: a filer whose federal AGI is under $100,000 (single, married filing separately, head of household) or under $150,000 (married filing jointly). Above those AGI limits the subtraction is unavailable and the distribution is fully taxed. What is covered: Connecticut runs 401(k), 403(b), 457(b), defined benefit pensions and non-Roth IRA distributions through the same Pension or Annuity Income subtraction, but IRAs are on a separate phase-in schedule from pensions and this is the single most consequential detail here. For tax year 2025 the calculation takes the full taxable pension and annuity amount (federal Form 1040 Line 5b) and adds only 75% of the taxable IRA distribution (federal Form 1040 Line 4b).

What about pensions — private, government, or military? A $50,000 pension costs $2,000 if private, $2,000 if a government pension, and $0 if military retired pay. Those differences are the state's own policy, not an accident of the arithmetic.

What does retiring in Connecticut actually cost? Income tax of $4,475 on the typical profile, plus about $8,779 of property tax and $2,690 of insurance on the median home — $15,944, which is the most expensive state in the country on these three lines.

Is Connecticut a cheap state to retire in? On these three lines it ranks the most expensive state in the country on these three lines. Whether that makes it cheap for you depends far more on the house than on the tax code.

What does a Roth conversion cost in Connecticut? An extra $2,975 in state tax on $50,000 converted, and $5,975 on $100,000. That is 6% of the amount converted, on top of the federal tax.

Does part-time work get taxed differently from my 401(k) withdrawals? $20,000 of part-time earnings costs $1,175 in state tax, an effective 5.9%.

Would a neighbouring state be cheaper than Connecticut? Rhode Island is the cheapest of Connecticut and its neighbours at $8,897 against Connecticut's $15,944.

Do required minimum distributions change if I move here? No. The required amount is a federal calculation and identical in every state. What changes is what the distribution costs once taken.

Does this article include local income tax? No local income tax applies to retirement income in Connecticut on the figures used here.

Will Connecticut's treatment still apply in ten years? State legislatures revise retirement taxation regularly — several states have changed theirs in the past three years. Figures here are for tax year 2026 and are worth re-checking before a move.

What to do next

Two numbers decide this and neither is the one in the headline: your county's actual property tax rate, and a real insurance quote on a real address.

• Retirement state tax calculator — what any state charges on your income, cited per state
• RMD calculator — the distribution you must take, which no state changes
• Home insurance premium estimator — the line this article says decides it
• The Relocation Tax Playbook — establishing domicile, and the states that contest it