Every part of your retirement math, in one plan.
TaxWiseRetire isn't a single-number calculator. It's a full projection engine that models your household, your accounts, and the tax code together.
Year-by-year projection engine
Every plan runs a full year-by-year simulation — income, withdrawals, contributions, and account balances — instead of a single rough estimate for "retirement."
Required Minimum Distributions
RMDs are calculated automatically using the IRS Uniform Lifetime Table for every account that requires them, starting at the correct age under current SECURE 2.0 rules.
Social Security taxability
Uses the federal provisional-income test to determine exactly how much of your Social Security benefit is taxable each year — not a flat percentage guess.
Federal + state tax calculation
Combined federal and state income tax, seeded with real tax-year data for all 50 states and DC, across all five IRS filing statuses (Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse).
Whole-household modeling
Add every person and every account in your household — Traditional IRA, 401(k), Roth IRA, HSA, brokerage, real estate, Inherited IRA, and other accounts — with clear ownership per account, including joint accounts. A real estate account feeds property-tax cost modeling directly into your plan, and into the Best States ranking below.
HSA-aware
Handles Health Savings Account withdrawals correctly, distinguishing qualified medical expenses from other withdrawals and applying the right tax and penalty treatment.
IRS-max contribution top-up
Optionally have TaxWiseRetire automatically size contributions up toward the IRS annual maximum, using a two-pass refinement so the numbers land close to the limit without overshooting.
Hit your income floor automatically
Set a minimum annual after-tax income you want guaranteed — inflation-adjusted every year, not a flat number that quietly loses buying power — and TaxWiseRetire draws from your accounts in whatever priority order you choose to make up any shortfall, refined in two passes so the numbers land close to your target without overshooting. Set up separate scheduled distributions (like a fixed percentage starting a certain year) alongside it — the two run independently, so a planned withdrawal is never mistaken for a top-up.
Find your Sustainable Income Floor
Don't want to guess at an income floor number? One click runs a solver against your exact plan — accounts, tax situation, and account draw-down order all included — and recommends the highest minimum annual income your plan can actually sustain for its full time horizon, whether that means raising your current setting or lowering it. Review the recommendation side by side with your current setting, then apply it in one click. Free on every plan, no card required.
Full Excel export
Export a complete, multi-sheet workbook — per-account detail, income & tax, wages & contributions, and a dedicated RMD sheet — to keep, share, or review with an advisor.
Save multiple scenarios
Build more than one plan to compare "what if" scenarios — different retirement ages, contribution levels, or states — side by side.
Medicare IRMAA planning
See how your projected income affects Medicare Part B and Part D premiums. TaxWiseRetire models the income-related monthly adjustment (IRMAA) surcharge year by year, so a big Roth conversion or RMD year doesn't come with a surprise premium hike.
Roth conversion optimization
Set a target tax bracket ceiling and TaxWiseRetire figures out how much to convert from Traditional/401(k) to Roth each year to fill it — without pushing you into a higher bracket or, optionally, a higher Medicare IRMAA tier. Conversion is restricted to a planning window right before RMDs begin — 5 years by default, adjustable per plan — since tax law and your own circumstances get harder to predict further out; your Results page marks exactly when that window opens and closes for each person. See a year-by-year breakdown of the tax cost versus not converting, plus an honest bottom-line comparison of ending wealth either way — and if you'd rather withhold the conversion's tax bill from the conversion itself instead of paying it from other funds, TaxWiseRetire models that too, including the smaller after-tax Roth deposit and any early-withdrawal penalty exposure.
Best states to retire in Paid
See how your exact plan would fare in every other state. TaxWiseRetire re-runs your full projection against all 50 states and DC and ranks them by combined income tax, property tax, and cost-of-living savings versus your home state — not income tax alone — plus how each one shifts your ending wealth, since state tax differences change withdrawal timing too. State tax brackets, property tax rates, and cost-of-living data are refreshed directly from official sources (Tax Foundation, U.S. Census Bureau, Federal Reserve) each year rather than left to go stale.
Social Security claiming-age comparison Paid
Claim at 62, your Full Retirement Age, or 70? TaxWiseRetire re-runs your full plan all three ways, using the real Social Security Administration early-claiming reduction and delayed-retirement credit formula to adjust the benefit amount at each age — not just the flat number you entered — so you can see the actual lifetime impact on income and ending wealth, not just the bigger monthly check.
ACA subsidy cliff modeling
Retiring before 65? TaxWiseRetire models your ACA marketplace premium tax credit year by year against the 400% Federal Poverty Line cliff — reinstated law as of 2026 — so a big Roth conversion or income year doesn't quietly cost you your entire health insurance subsidy.
Find your optimal Roth ceiling automatically Paid
Not sure what bracket ceiling to target? The Roth Ceiling Optimizer searches a range of federal bracket ceilings and IRMAA-avoidance settings against your own plan and recommends the one that best fits your goal — maximize lifetime net income, minimize lifetime tax, or maximize ending net worth, whichever matters most to you. Review the recommendation, then apply it to your plan in one click.
Monte Carlo stress-testing Paid
Every other projection assumes a fixed growth rate per account. Monte Carlo simulation instead runs your exact plan 100 to 1,000 times against randomized annual returns for each account's assigned risk profile — Conservative, Balanced, or Aggressive — and reports the percentage of trials where your income never meaningfully fell short of your target, plus a 10th/50th/90th percentile range for your ending balance each year. See how much your plan depends on getting lucky with market timing, not just what happens on average.
Inherited IRA & the SECURE Act 10-year rule
Already inherited a Traditional or Roth IRA? Add it as an Inherited IRA account and TaxWiseRetire calculates its required distributions automatically under the SECURE Act — the 10-year full-distribution deadline for most beneficiaries, or an annual stretch payment over your own life expectancy if you're an Eligible Designated Beneficiary (a minor child, someone disabled or chronically ill, or not more than 10 years younger than the person who passed). A clear on-screen disclaimer flags the one part of this rule that's still genuinely disputed among tax professionals.
See it work with your own numbers.
Building your household and first plan is free — no card required.