Connecticut taxes retirement income differently than most states — and the rules changed significantly in recent years. This guide breaks down exactly how Social Security, pensions, 401(k) withdrawals, and capital gains are taxed for CT residents in 2026, so you can plan with clarity.
Is Retirement Income Taxable in Connecticut?
Yes — Connecticut taxes most forms of retirement income, but the picture is more nuanced than a simple yes or no. The state applies its income tax (ranging from 2% to 6.99% as of 2026) to retirement income, with partial exemptions available for Social Security benefits and certain pension income depending on your adjusted gross income (AGI).
For retirees with $1 million or more in savings, understanding which income sources trigger state tax — and in what amounts — can meaningfully affect how much of your portfolio you keep each year. The difference between an uncoordinated withdrawal strategy and a tax-sensitive one can amount to thousands of dollars annually, depending on your individual circumstances.
Below is a source-by-source breakdown of how Connecticut taxes each major type of retirement income in 2026.
2026 CT Income Tax Rates at a Glance
| Taxable Income (Single) | CT Rate |
|---|---|
| Up to $10,000 | 2.0% |
| $10,001 – $50,000 | 4.5% |
| $50,001 – $100,000 | 5.5% |
| $100,001 – $200,000 | 6.0% |
| Over $200,000 | 6.99% |
Source: Connecticut Department of Revenue Services, 2026. Married filing jointly thresholds differ. Consult a tax professional for your individual situation.
How Connecticut Taxes Each Type of Retirement Income
Not all retirement income is treated equally under Connecticut law. Here is what you need to know about each major source.
Social Security Benefits
Connecticut partially exempts Social Security benefits from state income tax. As of 2026, if your federal AGI is $75,000 or below (single) or $100,000 or below (married filing jointly), 100% of your Social Security benefits are exempt from Connecticut income tax.
If your AGI exceeds those thresholds, up to 25% of your Social Security benefits may be subject to CT income tax — though the exact amount depends on your total income picture. Note that federal taxation of Social Security is a separate calculation and may apply regardless of CT rules.
Planning consideration: Managing your AGI through strategic Roth conversions or coordinated withdrawal sequencing may affect how much of your Social Security is taxed at the state level. Results vary by individual situation.
Pension Income (Including State and Federal Pensions)
Connecticut has been phasing in an exemption for pension and annuity income. Under legislation enacted in recent years, the exemption has expanded and — as of 2026 — qualifying retirees may exempt a significant portion of pension income from CT income tax, subject to AGI limits.
The exemption applies to income from government pensions (federal, state, and municipal) as well as qualifying private pensions and annuities. For single filers with AGI up to $75,000 and joint filers with AGI up to $100,000, the exemption is generally available in full. Partial exemptions may apply at higher income levels.
Planning consideration: The income thresholds for pension exemptions use AGI as the measuring stick — the same figure affected by 401(k) withdrawals, Roth conversions, and other income sources. Sequencing matters.
401(k) and Traditional IRA Withdrawals
Withdrawals from traditional 401(k) plans and traditional IRAs are treated as ordinary income in Connecticut and taxed at the state's graduated income tax rates (2% to 6.99%). There is no separate exemption for 401(k) or IRA distributions — they are included in your Connecticut AGI in full.
For retirees with $1 million or more in pre-tax retirement accounts, this is often the single largest driver of CT income tax in retirement. Required Minimum Distributions (RMDs), which begin at age 73 under current federal law, can push taxable income higher — potentially reducing Social Security and pension exemptions in the same year.
Planning consideration: Roth conversions in lower-income years before RMDs begin may reduce the long-term CT tax burden. This strategy involves trade-offs and should be evaluated against your full financial picture.
Capital Gains and Investment Income
Connecticut does not offer a preferential rate for long-term capital gains. All capital gains — short-term and long-term — are taxed as ordinary income at the state level, at rates up to 6.99%. This is a meaningful distinction from federal tax law, where long-term capital gains are taxed at 0%, 15%, or 20% depending on your income bracket.
For retirees with taxable investment accounts, the timing of portfolio rebalancing, asset sales, and dividend income all have direct CT tax implications. Managing the timing and character of investment income is an important component of a comprehensive retirement tax strategy.
Planning consideration: Holding tax-efficient investments in taxable accounts and timing asset sales across tax years may help manage CT capital gains exposure. Outcomes vary by situation.
Roth IRA Withdrawals: Generally Not Taxed by Connecticut
Qualified distributions from Roth IRAs are generally not subject to Connecticut income tax — because contributions were made with after-tax dollars and qualified distributions are not included in federal AGI, they flow through to CT as non-taxable income as well.
This makes the Roth IRA — and Roth 401(k) — potentially valuable tools for managing CT tax exposure in retirement. However, building Roth balances through conversions involves paying taxes today in exchange for potential tax-free income later, which involves trade-offs that depend heavily on your current and projected future tax rates.
CT Tax Treatment by Income Source
| Income Source | CT Tax Treatment |
|---|---|
| Social Security | Exempt if AGI under threshold; partial tax above |
| Pension / Annuity | Phased exemption; income limits apply |
| Traditional 401(k) / IRA | Fully taxed as ordinary income (2%–6.99%) |
| Roth IRA / Roth 401(k) | Qualified distributions generally not taxed |
| Capital Gains | Taxed as ordinary income (no preferential rate) |
| Dividends & Interest | Taxed as ordinary income |
Source: Connecticut Department of Revenue Services, 2026. Individual situations vary. This table is for general educational purposes only.
Why This Matters More at Higher Savings Levels
The Retirement Tax Traps CT Residents with $1M+ Face
For retirees with substantial savings, the interaction between different income sources — not just the rates themselves — determines the tax outcome. Several compounding factors affect high-balance CT retirees in ways that general guides do not address.
RMDs Can Eliminate Your Exemptions
Required Minimum Distributions from large pre-tax accounts can push your AGI above the Social Security and pension exemption thresholds in a single year. The result: income that might otherwise have been exempt at the state level becomes taxable — not because you needed the money, but because the law required the withdrawal.
The IRMAA Cliff: CT Plus Federal Medicare Surcharges
High income in retirement also triggers Medicare Income-Related Monthly Adjustment Amounts (IRMAA) — federal surcharges on Part B and Part D premiums. For 2026, IRMAA surcharges begin when MAGI exceeds $106,000 (single) or $212,000 (joint). When CT income tax and IRMAA stack together, the effective marginal cost of additional retirement income rises significantly.
Capital Gains Taxed at Full CT Rates
If your retirement strategy relies on drawing from taxable investment accounts, every dollar of gain — long-term or short-term — is taxed by Connecticut at ordinary income rates. For retirees in the upper CT brackets, this can represent a material difference compared to federal treatment of long-term gains.
Roth Conversion Windows Are Finite
The period between retirement and the start of Social Security or RMDs — sometimes called the "Roth conversion window" — may offer lower-income years where converting pre-tax balances to Roth at a lower tax rate is potentially advantageous. Once RMDs begin and Social Security is taken, that window narrows. The timing and size of conversions involves trade-offs that vary by individual circumstances.
Brian Skinner, CFP®, CRPC®
Skinner Wealth Strategies | Milford, CT
Brian Skinner is a Certified Financial Planner (CFP®) and Chartered Retirement Planning Counselor (CRPC®) based in Milford, Connecticut. He specializes in tax-sensitive retirement and income distribution planning for individuals and families aged 50 and older with $1 million or more in retirement savings. Brian teaches retirement planning and tax strategy classes across Connecticut and is an active member of the Milford Rotary Club.
His integrated approach links investment management, income distribution, and tax planning into a single cohesive strategy — designed to help clients navigate the transition from saving for retirement to living in retirement with clarity and confidence.
Tax-Sensitive Income Distribution Planning for CT Retirees
Knowing the tax rules is only the first step. The harder question — and the one that most directly affects your outcome — is how to sequence and structure your income sources to manage your tax burden across a retirement that may span 20 to 30 years.
At Skinner Wealth Strategies, our tax-sensitive income distribution planning service is designed specifically for this challenge. We integrate your 401(k), IRA, Social Security strategy, taxable accounts, and Roth balances into a coordinated withdrawal plan — built to help manage your CT and federal tax exposure across your retirement years. Results vary by individual situation and tax circumstances.
- ✓ Withdrawal sequencing to manage AGI and preserve exemptions
- ✓ Roth conversion analysis — timing, amounts, and tax-bracket targeting
- ✓ Social Security filing strategy coordinated with your tax picture
- ✓ IRMAA planning to help manage Medicare premium surcharges
- ✓ Annual tax return review and forward-looking tax planning
Connecticut Retirement Tax Questions, Answered
Is retirement income taxable in Connecticut?
Yes, most forms of retirement income are subject to Connecticut income tax. However, partial exemptions exist for Social Security benefits and qualifying pension income depending on your adjusted gross income. Roth IRA qualified distributions are generally not taxed at the CT level. The specifics depend on your income level and sources.
Is Connecticut going to stop taxing pensions?
Connecticut has been phasing in an expanded exemption for pension and annuity income over recent years. As of 2026, qualifying retirees below the AGI thresholds ($75,000 single / $100,000 joint) may exempt a significant portion of pension income. Connecticut has not fully eliminated pension taxation as of 2026, but the exemption has grown substantially compared to prior years. Check with the Connecticut Department of Revenue Services or a qualified tax advisor for the most current rules.
What is the tax break for seniors in Connecticut?
Connecticut offers several tax provisions for seniors, including the Social Security exemption (full exemption for AGI under $75,000 single / $100,000 joint), the pension and annuity income exemption for qualifying retirees, and property tax credit opportunities for older homeowners. There is no blanket senior income tax exemption — the applicable benefits depend on your specific income level and sources.
How much of my Social Security is taxable in Connecticut?
If your Connecticut AGI is at or below $75,000 (single) or $100,000 (married filing jointly), your Social Security benefits are fully exempt from CT income tax. Above those thresholds, a portion of your benefits may be subject to CT tax. The exact taxable amount depends on your total income. Federal Social Security taxation is determined separately using a different formula.
Does Connecticut tax 401(k) withdrawals?
Yes. Traditional 401(k) withdrawals are treated as ordinary income in Connecticut and taxed at the state's graduated income tax rates, which range from 2% to 6.99% as of 2026. There is no special exemption for 401(k) or traditional IRA distributions. For retirees with large pre-tax balances, this is typically the primary driver of CT income tax in retirement.
How does Connecticut tax capital gains in retirement?
Connecticut taxes all capital gains — both short-term and long-term — as ordinary income at the state level. There is no preferential CT rate for long-term capital gains, which differs from federal tax law. For retirees drawing from taxable investment accounts, this means every dollar of gain is subject to CT rates up to 6.99%, regardless of how long the asset was held.
Make a Plan for Your Connecticut Retirement Taxes
Understanding the rules is the first step. Building a coordinated strategy around them — one that connects your income sources, withdrawal sequence, and long-term tax picture — is where planning creates real value. Skinner Wealth Strategies works with Connecticut residents aged 50 and older who want a clearer, more tax-aware path through retirement.
Skinner Wealth Strategies serves clients in Milford, Fairfield, Bridgeport, West Hartford, and throughout Connecticut. Brian Skinner, CFP®, CRPC® is a fiduciary financial planner.
Content in this material is for general information only and is not intended to provide specific advice or recommendations for any individual. All performance referenced is historical and is no guarantee of future results. All indices are unmanaged and may not be invested into directly.
The information provided is not intended to be a substitute for specific individualized tax planning or legal advice. We suggest that you discuss your specific situation with a qualified tax or legal professional.
Worked Example
$4.5 million of assets, under $100,000 of income
Hypothetical example — not an actual client.
A Fairfield couple with $4,500,000 funds $145,000 of annual spending on roughly $90,420 of adjusted gross income, because most of the cash comes from Roth distributions and the return of basis rather than from taxable withdrawals. A household spending the same amount from a traditional IRA would report about $197,700 — and lose the Connecticut retirement-income treatment that gap protects.
The household
Paul and Ellen Hart, ages 74 and 72, live in Fairfield. Both are retired. Ellen holds the couple's remaining traditional IRA; she turns 73 next year, when required distributions begin.
The problem
Spending and taxable income are different numbers, and in Connecticut the gap between them is worth money. The state exempts Social Security entirely below $100,000 of AGI for a married couple, and phases out its pension and retirement-account exemption completely by $150,000. A household that funds its lifestyle from a traditional IRA reports every dollar and can lose both.
The strategy
- Take Social Security of $62,000, of which at most $52,700 is federally taxable.
- Take $25,800 of interest and dividends thrown off by the taxable account — cash that arrives whether or not anything is sold.
- Take $28,000 of qualified Roth distributions, which produce no adjusted gross income at all.
- Take $19,200 from taxable sales of high-basis lots, of which only about $1,920 is realized gain.
- Take $10,000 from Ellen's traditional IRA — discretionary this year, because she does not reach required-distribution age until next year.
The arithmetic
- Cash received
- $145,000Social Security, dividends, Roth, taxable sales, IRA
- Adjusted gross income reported
- $90,420the same lifestyle, on 46% of the taxable income
- Peer funding the same spending from an IRA
- $197,700$145,000 distribution plus taxable Social Security
- Retirement income exposed to CT tax as a result
- $65,000illustrative
What it accomplishes
Paul and Ellen meet a $145,000 spending goal on roughly $90,420 of AGI — under the $100,000 line that keeps their Social Security fully exempt from Connecticut tax. A household spending identically from a traditional IRA reports about $197,700, above the $150,000 point where the state's retirement-income exemption has phased out entirely. The modeled difference is about $3,575 a year.
Where this breaks down
- The result depends on the assumed 1.2% yield on the taxable account. A higher-yielding portfolio produces more AGI from the same balance and can cross the line without anything being sold — which is exactly why account location matters as much as withdrawal order.
- Do not read this as a rule that every household under $100,000 receives a specific exemption. Connecticut's treatment varies by income type and filing status, and the thresholds are set by budget act rather than indexed.
- Selling "principal" still realizes gain. High basis reduces the taxable portion; it does not eliminate it.
- Roth distributions must be qualified to stay out of income.
- Ellen's required distributions begin next year and will raise AGI whether or not the money is needed. This structure buys years, not permanence.
- The 5.5% effective rate and the $65,000 of exposed income are illustrative, chosen to show the mechanism rather than to predict a specific bill.
Rules and research referenced
- Connecticut DRS — Social Security and retirement income exemption thresholds
- IRS — taxation of Social Security benefits
- IRS — qualified Roth distributions
Hypothetical example — not an actual client. Figures reflect the 2026 tax year and were last reviewed 2026-08-18. Names, ages, balances, assumed rates and outcomes are illustrative and do not represent any actual client. They do not predict or guarantee results. Federal and Connecticut thresholds change, and Connecticut’s are set by budget act rather than indexed to inflation. This is general education, not tax, legal or investment advice for any individual — every situation requires its own analysis.