Retirement Tax in Illinois: Complete Guide 2026
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Retirement Tax in Illinois: Complete Guide 2026
Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed tax professional for your specific situation.
Illinois is one of the most retirement-tax-friendly states in the nation despite having a flat income tax of ~4.95%. The state exempts virtually all retirement income from state income tax, including Social Security, pensions, 401(k) distributions, IRA withdrawals, and military retirement pay. This comprehensive exemption makes Illinois an attractive state for retirees, though other taxes like property taxes can affect the overall picture. This guide explains how Illinois treats retirement income for tax purposes.
Illinois Retirement Income Tax Treatment
| Retirement Income Type | Taxable in Illinois? | Notes |
|---|---|---|
| Social Security benefits | No | Fully exempt |
| Private pensions | No | Fully exempt |
| Government pensions (federal, state, local) | No | Fully exempt |
| 401(k) distributions | No | Fully exempt |
| Traditional IRA distributions | No | Fully exempt |
| Roth IRA distributions | No | Tax-free (also federal) |
| 403(b) distributions | No | Fully exempt |
| 457 plan distributions | No | Fully exempt |
| Military retirement pay | No | Fully exempt |
| Railroad retirement | No | Fully exempt |
| Annuity income (from qualified plans) | No | Fully exempt |
Illinois exempts all income from federally qualified retirement plans from state income tax. This is one of the broadest retirement income exemptions in the country.
How the Exemption Works
The Illinois Subtraction
Illinois begins with federal adjusted gross income (AGI) and then allows a subtraction for retirement income received from qualified plans. The key qualifying plans include:
- Plans under IRC Section ~401(a) (pensions, 401(k))
- Plans under IRC Section ~403(a) and ~403(b)
- Plans under IRC Section ~408 (IRAs)
- Plans under IRC Section ~457 (deferred compensation)
- Social Security and equivalent Railroad Retirement benefits
- U.S. military retirement pay
The subtraction effectively removes all qualifying retirement income from the Illinois tax base, meaning it is taxed at ~0% regardless of amount.
What Is Still Taxable
While retirement plan income is exempt, other income sources remain taxable at the ~4.95% flat rate:
| Income Type | Taxable? |
|---|---|
| Wages and salaries | Yes (~4.95%) |
| Self-employment income | Yes (~4.95%) |
| Rental income | Yes (~4.95%) |
| Interest and dividends | Yes (~4.95%) |
| Capital gains | Yes (~4.95%) |
| Business income | Yes (~4.95%) |
This means retirees with significant investment income outside retirement accounts will still owe Illinois income tax on that income.
Illinois Retirement Tax vs. Neighboring States
| State | SS Taxed? | Pensions Taxed? | 401(k)/IRA Taxed? | Income Tax Rate |
|---|---|---|---|---|
| Illinois | No | No | No | ~4.95% (on non-retirement) |
| Indiana | No | Yes | Yes | ~3.05% |
| Iowa | No | Partially | Partially | Up to ~5.7% |
| Michigan | No | Partially | Partially | ~4.25% |
| Wisconsin | No | Yes | Yes | Up to ~7.65% |
| Missouri | No | Partially | Partially | Up to ~4.8% |
| Kentucky | No | Partially | Partially | ~4% |
Illinois stands out as the only state in its region that fully exempts all retirement income from state taxes. Neighboring states like Indiana, Wisconsin, and Iowa tax at least some portion of pension and 401(k) income.
For the full comparison, visit our state income tax rates comparison.
The Property Tax Challenge
While Illinois excels in retirement income taxation, its property taxes are among the highest in the nation:
| Metric | Illinois | National Average |
|---|---|---|
| Average effective property tax rate | ~2.08% | ~1.02% |
| Median annual property tax | ~$4,784 | ~$2,690 |
| Tax on ~$300,000 home | ~$6,240 | ~$3,060 |
For retirees who own their homes, Illinois property taxes can significantly offset the income tax savings. A retiree receiving ~$60,000 in pension income saves approximately ~$2,970 in income tax (vs. a state taxing at ~4.95%) but may pay ~$3,000+ more in property taxes than the national average.
Senior Property Tax Relief
Illinois offers several programs to help senior homeowners:
- Senior Citizens Homestead Exemption: Reduces assessed value by ~$8,000
- Senior Citizens Assessment Freeze: Freezes assessed value for qualifying seniors (age ~65+, income under ~$65,000)
- Senior Citizens Real Estate Tax Deferral: Allows qualifying seniors to defer property taxes until the home is sold
Tips for Retirees in Illinois
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Maximize retirement account withdrawals. Since all qualified retirement income is exempt from Illinois tax, consider drawing more from 401(k) and IRA accounts rather than taxable investment accounts. This strategy minimizes the income that is actually subject to the ~4.95% rate. See our federal income tax guide.
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Consider Roth conversions carefully. While the conversion itself (from traditional to Roth) is exempt from Illinois tax since it involves retirement plan income, you still owe federal tax on the conversion amount. The Illinois exemption makes Roth conversions slightly more attractive for Illinois residents since there is no state tax cost.
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Apply for the Senior Assessment Freeze. If you are ~65 or older and your household income is under ~$65,000, the assessment freeze can save you hundreds or thousands of dollars annually by preventing property tax increases.
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Plan investment income strategically. Interest, dividends, and capital gains are taxable at ~4.95%. Consider tax-loss harvesting, municipal bonds (Illinois municipal bond interest is also exempt), and other strategies to minimize taxable investment income.
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Evaluate the total tax picture. Illinois’s retirement income exemption is excellent, but high property taxes may negate the benefit for homeowners. Run the numbers for your specific situation, including property taxes, sales taxes (~8.86% combined average), and any remaining income tax. Use our tax bracket calculator.
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File for all property tax exemptions. The senior homestead exemption, assessment freeze, and tax deferral programs must be actively applied for. Contact your county assessor’s office to ensure you are receiving all benefits. Consult our self-employment tax guide if you have self-employment income in retirement.
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Consider part-time work implications. If you work part-time in retirement, wages are taxable at ~4.95%. However, if you earn enough to contribute to a retirement account, those contributions reduce your taxable wages, and future withdrawals will be exempt.
Key Takeaways
- Illinois exempts all qualified retirement income from state income tax, including Social Security, pensions, 401(k), IRA, and military retirement pay.
- The ~4.95% flat tax still applies to non-retirement income such as wages, investment income, and rental income.
- Illinois is the only state in its region that fully exempts all retirement income from state taxation.
- High property taxes (~2.08% average effective rate) can offset the retirement income tax benefit for homeowners.
- Senior property tax relief programs, including the assessment freeze and homestead exemption, are available but must be applied for.
- The retirement income exemption makes Roth conversions more attractive in Illinois since there is no state tax cost on the conversion.
Next Steps
- Federal Income Tax Guide 2026 — Understand federal taxation of retirement income.
- State Income Tax Rates Comparison 2026 — Compare Illinois’s retirement tax treatment with other states.
- Tax Bracket Calculator — Model your total tax burden in retirement.
- Find a CPA Near You — Get personalized retirement tax planning advice in Illinois.