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529 Plan Contributions in Connecticut 2026

Calculate your 529 plan contributions tax savings in Connecticut. With Connecticut's 6.99% top state tax rate, your combined savings are higher.

Connecticut Tax Overview

State Income Tax
6.99%
progressive
Sales Tax
6.35%
avg combined: 6.35%
Property Tax Rate
1.96%
Median Income
$90,213

No standard deduction. Estate tax. Very high property taxes (1.96%).

Connecticut Income Tax Brackets (Single)

3%
$0 - $10,000
5%
$10,000 - $50,000
5.5%
$50,000 - $100,000
Your bracket
6%
$100,000 - $200,000
6.5%
$200,000 - $250,000
6.9%
$250,000 - $500,000
6.99%
$500,000 +
$1,375
Est. Total Savings
No Limit
Max Deduction
State-Level
Deduction Type
27.5%
Combined Tax Rate

529 Plan Contributions Savings Calculator for Connecticut

$
$

Federal Savings

$1,100

22% bracket

Connecticut State

$275

5.5% rate

Total Savings

$1,375

27.5% combined

At a 27.5% combined tax rate in Connecticut, every $1,000 in deductions saves you $275 in taxes.

Savings by Tax Bracket in Connecticut

10%
$775
12%
$875
22%
$1,375
24%
$1,475
32%
$1,875
35%
$2,025
37%
$2,125

Includes 5.5% Connecticut state tax on top of federal savings.

Eligibility Requirements

Contributors to 529 education savings plans

  • 1State-level deduction only
  • 2Varies by state
  • 3No federal deduction

Connecticut residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 6.99%.

Common Mistakes to Avoid

  • !Expecting federal deduction
  • !Not checking state limits
  • !Forgetting to claim the deduction on your Connecticut state return (missing up to 6.99% additional savings)

Connecticut Filing Tips

Personal exemption credits phase out at higher incomes. A 'recapture' tax can push effective rates above stated brackets. Consider the high property tax when evaluating total cost of living.

Required Tax Forms

State tax return

File these forms with your federal tax return to claim the 529 plan contributions. Connecticut may require additional state-specific forms.

Other Tax Deductions in Connecticut

Student Loan Interest Deduction

Education

~$688
est. savings

American Opportunity Tax Credit

Education

~$2,200
est. savings

Lifetime Learning Credit

Education

~$1,500
est. savings

Coverdell Education Savings Account

Education

~$375
est. savings

Educator Expense Deduction

Education

~$83
est. savings

Employer-Required Education

Education

~$3,750
est. savings

Education Savings Bond Interest

Education

~$625
est. savings

Employer Education Assistance

Education

~$1,444
est. savings

529 Plan Contributions in Neighboring States

New York

10.9% top rate (progressive)

~$1,495
+120 vs Connecticut

Massachusetts

5% top rate (flat)

~$1,227
-148 vs Connecticut

Rhode Island

5.99% top rate (progressive)

~$1,272
-103 vs Connecticut

Tax Calculators for Connecticut Cities

BridgeportStamfordNew HavenHartfordWaterburyNorwalkDanburyNew BritainWest HartfordGreenwich

Calculate Your Full Tax Savings in Connecticut

Use our free tax calculators to optimize your entire tax return for Connecticut.

Income Tax CalculatorConnecticut Income TaxFull 529 Plan Contributions Guide

Frequently Asked Questions

How much can I save with the 529 Plan Contributions in Connecticut?

In Connecticut, the 529 plan contributions can save you an estimated $1,375 per year on a $5,000 deduction. This includes $1,100 in federal tax savings and $275 in Connecticut state tax savings at the 5.5% marginal rate. The national average savings is $1,000/year.

What is the Connecticut state income tax rate?

Connecticut has a progressive income tax system with a top rate of 6.99%. No standard deduction. Estate tax. Very high property taxes (1.96%).

Who qualifies for the 529 Plan Contributions in Connecticut?

Contributors to 529 education savings plans. The eligibility requirements are the same whether you live in Connecticut or another state, as this is a federal tax deduction. However, your total savings will vary based on Connecticut's 6.99% top state tax rate.

What tax forms do I need to claim the 529 Plan Contributions in Connecticut?

To claim the 529 plan contributions, you need to file State tax return with your federal return. Connecticut residents should also check if the state allows this deduction on their state return for additional savings of up to 6.99%. Filing status affects your deduction limits and tax bracket.

Is the 529 Plan Contributions better in Connecticut than in states without income tax?

Yes, Connecticut residents benefit more because the state's 6.99% top income tax rate means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 27.5% means more savings per dollar deducted.

What is the standard deduction in Connecticut for 2026?

Connecticut's standard deduction is $0 for single filers and $0 for married filing jointly. Personal exemption credits phase out at higher incomes. A 'recapture' tax can push effective rates above stated brackets. Consider the high property tax when evaluating total cost of living.

Related Calculators

Student Loan Interest Deduction in Connecticut

Avg savings: $550/year

American Opportunity Tax Credit in Connecticut

Avg savings: $2,200/year

Lifetime Learning Credit in Connecticut

Avg savings: $1,500/year

Coverdell Education Savings Account in Connecticut

Avg savings: $300/year

Educator Expense Deduction in Connecticut

Avg savings: $66/year

Employer-Required Education in Connecticut

Avg savings: $3,000/year