How Retirement Income Is Taxed in Connecticut (and What Exemptions You May Qualify For)
Retirement in Connecticut comes with a mix of financial opportunities and planning challenges—especially when it comes to state income taxes. While Connecticut does tax some retirement income, it also provides some of the most generous exemptions in the region for Social Security, pensions, and retirement account withdrawals.
Understanding how these rules work can help retirees reduce unnecessary tax exposure and make more informed income decisions in retirement.
Below is a clear breakdown of how Connecticut taxes retirement income and the key exemptions that may apply.
Social Security Benefits: Often Fully or Partially Exempt
One of the most important advantages for Connecticut retirees is the partial exemption of Social Security income.
Connecticut follows a two-tier structure:
Full exemption: If your federal adjusted gross income (AGI) is below:
$75,000 for single filers
$100,000 for married filing jointly
then all federally taxable Social Security benefits are exempt from Connecticut income tax.
Partial exemption: If your income exceeds those thresholds, Connecticut still provides relief. In most cases, no more than 25% of Social Security benefits may be subject to state taxation.
This structure ensures that even higher-income retirees retain some level of tax protection on Social Security income.
Pension Income: Significant Exemptions for Many Retirees
Connecticut offers meaningful tax relief on pension and annuity income, but eligibility depends on income level.
Full exemption (for many retirees)
Pension and annuity income is 100% exempt from Connecticut income tax if your AGI is below:
$75,000 (single or married filing separately)
$100,000 (married filing jointly)
This includes income from many common retirement sources such as defined benefit pension plans and certain retirement distributions.
Residents can use the state’s income tax calculator to determine their tax reductions.
Reduced exemption for higher incomes
For retirees above these thresholds, Connecticut applies a gradual phase-out system rather than an abrupt cutoff. This allows partial exemptions instead of a complete loss of tax benefits.
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Military, Railroad, and Certain Government Pensions: Fully Exempt
Some categories of retirement income receive even stronger protection.
Connecticut fully exempts:
Military retirement pay
Railroad Retirement benefits
These sources are not subject to state income tax regardless of income level, making them among the most tax-favorable retirement income streams in the state.
Teachers’ Retirement Benefits: 50% Deduction (or More in Some Cases)
Retired Connecticut public school teachers receive a specific deduction:
50% of teacher pension income is deductible from state income tax
However, some retirees may qualify for a larger general pension exemption instead, depending on their total income and filing status. In certain cases, it may be more advantageous to use the general exemption rather than the teacher-specific deduction.
IRA and 401(k) Withdrawals: Increasing Exemptions Through 2026
Connecticut has been gradually expanding tax relief for retirement account income, including traditional IRAs (Roth IRAs are already tax-free federally and not treated the same way).
The exemption is being phased in as follows:
2024: 50% of qualifying IRA income exempt
2025: 75% exempt
2026 and beyond: 100% exempt (for eligible taxpayers)
This phase-in is one of the most significant recent tax changes for Connecticut retirees, as it eventually eliminates state taxation on most IRA income for those who qualify under the income thresholds.
Key Income Thresholds to Remember
Across most retirement income categories in Connecticut, these thresholds are central:
$75,000 AGI (single / married filing separately)
$100,000 AGI (married filing jointly)
These thresholds determine whether retirees receive:
Full exemptions
Partial exemptions
Or standard taxation rules
Planning withdrawals around these thresholds can significantly affect your annual state tax bill.
Important Takeaways for Connecticut Retirees
Here’s what retirees should keep in mind:
Social Security is often fully or mostly exempt at moderate income levels
Many pensions qualify for full exemption under AGI thresholds
Military and railroad retirement income is fully tax-free at the state level
IRA and retirement account exemptions are expanding through 2026
Income thresholds play a major role in determining tax exposure
Final Thoughts
Connecticut is not a “no-tax” retirement state, but it does offer a structured system of exemptions that can significantly reduce—or even eliminate—state taxes on retirement income for many residents.
The key is understanding how different income sources are treated and how adjusted gross income affects eligibility for exemptions. With careful planning, retirees can often reduce their state tax burden more than they expect.
Have a great week—and I’ll talk to you next Friday.
Written by Ryan Morrissey CFP®, CLU®, CHFC®, CMFC
Founder & Principal Advisor of Morrissey Wealth Management
Host of the Retire with Ryan Podcast