Illinois Retirement Income Tax Calculator
Calculate taxes on retirement income in Illinois. State tax up to 4.95%. See after-tax Social Security, 401(k), pension, and IRA distributions.
Estimate only — these are not official figures
Illinois exclusions and rates are official; the page assumes every filer is age 65+, uses the published TY2026 exemption, and omits dependent/U.S.-obligation adjustments.
Do not rely on these amounts for budgeting or payment. For exact amounts, check the Illinois DOR Publication 120 and Booklet IL-700-T; 35 ILCS 5/201, 5/203, and 5/204.
Enter Your Details
Adjust values to see instant results
Additional Details
Pre-filled: Illinois's statutory 4.95% rate, applied to the source-backed taxable retirement base; edit only to model a different rate
Federal Income Tax
Estimated • Based on your inputs
Illinois State Tax
$0.00
After-Tax Retirement Income
$71,152.00
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
Retirement income tax calculation for Illinois. Federal tax follows the shared 2026 Social Security formula and assumes every filer is age 65+ for the additional federal standard deduction. Illinois subtracts federally taxed qualified pension, 401(k), IRA/SEP, governmental retirement, railroad retirement, and Social Security amounts from its base; Publication 120 confirms that early distributions from qualified plans and IRAs may also be subtracted. Mark nonqualified deferred compensation/annuities as nonqualifying. Other entered interest/dividend income remains taxable at 4.95%. This estimate uses the published TY2026 $2,925 personal exemption plus the $1,000 age-65 exemption per filer; both spouses are assumed 65+ on a joint return, and neither filer is assumed to be claimed by another taxpayer. The exemption is zero above $500,000 federal AGI joint / $250,000 other. U.S.-obligation interest and dependent exemptions are not modeled. Recheck by 2027-01-15.
Key State Information
Illinois retirement tax facts: qualifying retirement distributions and Social Security are excluded from the state base | other taxable income rate 4.95% | default source-backed taxable base $0 | TY2026 personal exemption $2,925 per filer | State tax rate up to 4.95% | Cost of living index 96.4 | Median home price $299,000 | Property tax 1.88% | Homestead exemption $10,000.
How to Use This Retirement Income Tax Calculator
- 1
Enter your retirement savings balance
Include all retirement accounts: 401(k), IRA, Roth IRA, pension present value, and any other investment accounts earmarked for retirement.
- 2
Set your expected retirement age and lifespan
Most financial planners recommend planning to age 90-95. Social Security full retirement age is 67 for those born after 1960. Early retirement (before 59½) triggers 10% early withdrawal penalties on tax-deferred accounts.
- 3
Input expected Social Security benefit
Check ssa.gov for your estimated benefit. The average benefit is ~$1,907/month (2026). Benefits vary based on your 35 highest-earning years and claiming age (62-70).
- 4
Review sustainable withdrawal rate
The 4% rule suggests withdrawing 4% of your portfolio in year one, adjusted for inflation thereafter. However, current research suggests 3.5-4.5% depending on asset allocation and market conditions.
Example Calculation
Let's plan retirement income for someone in Illinois.
Retiring at 65 with $750,000 in a 401(k), $200,000 in a Roth IRA, and expected Social Security of $2,400/month (claiming at 67). Using a 4% withdrawal rate: 401(k) provides $30,000/year (taxable), Roth IRA provides $8,000/year (tax-free), Social Security provides $28,800/year (up to 85% taxable). Total gross income: $66,800/year.
Result: Annual retirement income: $66,800. After federal income tax (~$7,000 for a single filer with standard deduction) and Illinois income tax (varies $0-$6,000+), net income is approximately $53,800-$59,800/year ($4,483-$4,983/month). The Roth IRA provides tax-free income and doesn't count toward Social Security taxation thresholds — a significant strategic advantage.
What Affects Your Results
Withdrawal Rate
The "safe withdrawal rate" determines how long your money lasts. 4% has a ~95% historical success rate over 30 years. 3.5% is more conservative; 4.5% is more aggressive. Sequence-of-returns risk in early retirement years matters most.
Tax Diversification
Having a mix of taxable, tax-deferred (401k/IRA), and tax-free (Roth) accounts gives retirement income flexibility. You can manage your tax bracket year-by-year by choosing which accounts to draw from.
Social Security Claiming Age
Benefits at 62 are 30% less than at 67. Benefits at 70 are 24% more than at 67. For a $2,000/month benefit at 67: $1,400/month at 62 vs. $2,480/month at 70 — a 77% difference.
State Tax Treatment
Illinois's treatment of retirement income varies dramatically. Some states exempt all retirement income; others tax everything. This 0-13% variable can mean $3,000-$15,000+/year in tax differences.
Healthcare Costs
Retirees spend an estimated $315,000+ on healthcare in retirement (Fidelity 2025 estimate). Pre-Medicare (before 65) health insurance via ACA marketplace can cost $500-$1,500+/month per person.
Tips for Illinois Residents
- Illinois don't tax Social Security benefits. 9 states with no income tax and several others specifically exempt Social Security. This can save retirees $2,000-$8,000/year — a meaningful consideration for where to retire.
- Delay Social Security to age 70 if possible. Benefits increase 8% per year from age 67 to 70. This is a guaranteed, inflation-adjusted return that no investment can match.
- The Roth conversion ladder is a powerful strategy: in early retirement (before RMDs), convert traditional IRA/401(k) to Roth IRA each year up to the top of a low tax bracket. This reduces future RMDs and their tax impact.
- Required Minimum Distributions (RMDs) start at age 73 (SECURE 2.0 Act). Failing to take RMDs triggers a 25% penalty on the amount not withdrawn. Plan withdrawals to avoid bracket-jumping.
- Healthcare costs are the biggest retirement wildcard. Medicare starts at 65, but supplemental coverage (Medigap, Part D, dental/vision) can cost $200-$500/month per person.
Newsletter Signups Are Paused
We're building the email delivery behind our newsletter so we can do it properly — signups aren't open yet. Check back soon.
No form here and nothing is collected. Read our privacy policy.
StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
Is retirement income taxed in Illinois?
Generally no for the qualified retirement categories modeled here. Illinois subtracts federally taxed qualified pensions, 401(k)/IRA/SEP distributions, governmental retirement, railroad retirement, and Social Security; Publication 120 also permits early qualified-plan and IRA distributions. Entered interest/dividend income can remain taxable at 4.95%.
Is Illinois a good state to retire in for taxes?
Illinois excludes the qualifying retirement income modeled here, but retirees should also consider property tax (1.88%), cost of living (index 96.4), and taxable investment income. This estimate uses the published TY2026 $2,925 personal exemption and assumes every filer is age 65+.
People Also Calculate
Frequently used together with this calculator
Related Calculators
More Retirement Income Tax Calculators
More Calculators for Illinois
Explore related financial tools with Illinois data
Compare Illinois With Other States
Side-by-side tax, housing & cost of living comparisons