Connecticut vs Wisconsin Taxes
Compare the total tax burden between Connecticut (2% – 6.99%) and Wisconsin (3.5% – 7.65%). Enter your income to see which state saves you more.
| Tax Component | Connecticut | Wisconsin |
|---|---|---|
| Federal Tax | $13,170 | $13,170 |
| State Tax | $4,975 | $4,429 |
| FICA | $7,650 | $7,650 |
| Total Tax | $25,795 | $25,249 |
| Take-Home | $74,205 | $74,751 |
| Effective Rate | 25.80% | 25.25% |
| Annual Difference | $546 more | $546 less |
The $546 difference is primarily because Connecticut has a progressive income tax with rates up to 7.0%, while Wisconsin has a progressive income tax with rates up to 7.6%. At your income level, Connecticut's marginal rate is 5.5% vs Wisconsin's 5.3%.
Why the difference
You'd save $546/year ($45/month) in Wisconsin vs Connecticut.
Tax structure
Connecticut uses progressive brackets up to 7.0%, while Wisconsin uses progressive brackets up to 7.6%.
Effective rate at your income
At $100,000, Wisconsin's effective state rate is 4.4% vs 5.0% in Connecticut — a 0.5 percentage point gap.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Connecticut Total Tax
$25,79525.80% effective rate
Wisconsin Total Tax
$25,24925.25% effective rate
Annual Savings
$546by living in Wisconsin
Tax at Different Income Levels
| Income | Connecticut Total Tax | Wisconsin Total Tax | Annual Savings |
|---|---|---|---|
| $75,000 | $16,883 | $16,353 | Save $530 |
| $100,000 | $25,795 | $25,249 | Save $546 |
| $150,000 | $44,434 | $43,518 | Save $916 |
| $200,000 | $62,323 | $61,032 | Save $1,291 |
Based on single filer, standard deduction, 2026 tax year. Includes federal income tax, state income tax, and FICA.
Why the difference
You'd save $546/year ($45/month) in Wisconsin vs Connecticut.
Tax structure
Connecticut uses progressive brackets up to 7.0%, while Wisconsin uses progressive brackets up to 7.6%.
Effective rate at your income
At $100,000, Wisconsin's effective state rate is 4.4% vs 5.0% in Connecticut — a 0.5 percentage point gap.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Understanding Each State
Connecticut
This state uses a progressive income tax system with multiple brackets, similar to the federal system. Only the income within each bracket is taxed at that rate, so your effective state rate is lower than the top bracket. Tax planning strategies include maximizing pre-tax retirement contributions to reduce state-taxable income.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Wisconsin
This state uses a progressive income tax system with multiple brackets, similar to the federal system. Only the income within each bracket is taxed at that rate, so your effective state rate is lower than the top bracket. Tax planning strategies include maximizing pre-tax retirement contributions to reduce state-taxable income.
Tip: In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Key Comparison Points
Income tax structure: Connecticut has a progressive income tax (2% – 6.99%), while Wisconsin has a progressive income tax (3.5% – 7.65%).
Beyond income tax: State tax comparisons should also consider property tax rates, sales tax, and cost of living. A state with no income tax may have higher property or sales taxes that offset the savings.
SALT deduction cap: Under OBBBA, the 2026 federal SALT cap is $40,400, phasing out above $505,000 MAGI toward a $10,000 floor. This limits the federal tax benefit of living in a high-tax state, so the gross state tax difference remains close to the net difference for most earners — especially high earners inside the phaseout.
Frequently asked questions
Is it cheaper to live in Connecticut or Wisconsin?
Based on income tax alone, Wisconsin has a lower tax burden. At $100K income, you'd save $546 annually in Wisconsin compared to Connecticut. However, total cost of living also depends on property taxes, sales taxes, and housing costs.
How much would I save moving from Connecticut to Wisconsin?
A single filer earning $100,000 would save approximately $546 per year in total taxes by living in Wisconsin instead of Connecticut. At $150,000 income, the savings change to $916 per year.
What is the income tax rate in Connecticut?
Connecticut has a progressive income tax with rates of 2% – 6.99%.
What is the income tax rate in Wisconsin?
Wisconsin has a progressive income tax with rates of 3.5% – 7.65%.