State Income Tax Retirement Calculator (2026)
A California retiree pays $167,580 more in 30-year state tax than an identical Wyoming retiree, and finishes with a 9.16-percentage-point lower Monte Carlo success rate. Nine states have no income tax; the highest is California at 13.3%. This calculator models all 50 states plus DC with 2026 brackets, exemptions, and 25-year cumulative impact.
State income taxes can shift your retirement success rate by 5-10 percentage points depending on where you live. This calculator models all 50 states plus DC with graduated bracket systems, standard deductions, and filing-status-specific rates. Nine states have no income tax; the rest range from 1% to 13.3%.
For full Monte Carlo simulation with state tax modeling across your entire retirement, use the QuantCalc Retirement Planner.
Your Retirement Scenario
Your State Tax:
| Bracket | Rate | Taxable in Bracket | Tax |
|---|
All 50 States + DC Comparison
Tax calculated on your income of $80,000 (MFJ). Click column headers to sort.
The Tax Your Retirement Calculator Probably Ignores
Most retirement calculators model federal taxes. Some add a flat state tax estimate. Almost none model your actual state bracket system with proper inflation adjustments.
This matters more than you think. A retiree withdrawing $80,000 per year faces dramatically different tax bills depending on their state — a $116,000 lifetime difference between California and Florida for the same income, same portfolio, same withdrawal strategy.
Why Flat-Rate Estimates Fail
States with graduated brackets (California has 9, New York has 8) behave differently as your income changes. A Roth conversion that pushes you from the 6% to the 9.3% state bracket in California creates a tax cost that a flat-rate model completely misses.
Three factors make state tax modeling complex:
- Bracket inflation varies by state. Some states index brackets to CPI annually. Others have fixed brackets that create bracket creep pushing retirees into higher rates. QuantCalc applies state-specific bracket inflation per year across your full retirement horizon.
- State treatment of retirement income differs. Some states exempt Social Security entirely. Others exempt pensions but tax IRA withdrawals. Your withdrawal sequence interacts with state rules in ways that require year-by-year modeling.
- The relocation decision changes your math. Moving from New York to Tennessee in year 5 of retirement eliminates state income tax but interacts with ACA subsidies, cost of living, and estate tax (12 states + DC have their own).
51 Jurisdictions, Hand-Tuned
QuantCalc models income tax for all 50 states plus DC. California, New York, and DC — the three highest-complexity jurisdictions — are hand-tuned against 2025 Department of Revenue published schedules. Every other state uses verified rate tables from the Tax Foundation and state DOR publications.
How State Tax Interacts With Other Planning Decisions
- Roth conversions create taxable income in both federal AND state brackets. A conversion that saves federal tax might push you into California's 9.3% bracket.
- ACA subsidies use federal MAGI. High-tax states create incentive to keep income below the 400% FPL cliff.
- RMDs force withdrawals hitting both federal and state brackets. A $1.5M traditional IRA generating $60K+ in annual RMDs creates a permanent state tax liability that Roth conversions in your 60s could have eliminated.
- IRMAA thresholds interact with state taxation: your income trajectory changes your state bracket, which changes your optimal Roth conversion amount.
See How State Tax Affects Your Full Retirement
Model all 50 states plus DC with inflation-adjusted brackets, Roth conversion optimization, and ACA cliff detection across 10,000 Monte Carlo simulations. See exactly how your state's tax brackets affect your retirement success rate.
PRO unlocks: 10,000 simulations, forward-looking forecasts from multiple publicly available sources, portfolio optimizer, and PDF reports.