Retirement Tax Planner: Bracket Fill Across Retirement Phases

Forecast which federal tax brackets you'll hit pre- and post-retirement. See where Roth conversion and bracket-fill windows live.

Based on 2026 IRS brackets. Pre-tax; full IRMAA + Social-Security-taxation cascade in the in-product plan.

2026 IRS bracket stack
32%24%22%12%Fill 12% base first; manage exposure to higher brackets

Heights are illustrative of bracket-fill priority, not bracket dollar widths.

Updated: June 2026

Retirement Tax Estimator

Enter your expected retirement income sources to estimate your federal and state tax burden.

Get a Plan-Specific Tax Estimate

Every household's tax-savings range depends on bracket fill, conversion window length, and withdrawal-sequencing room. The calculator above gives you a directional estimate; the full Praxion plan models the actual dollar range for your inputs alongside Roth conversion strategy and withdrawal sequencing.

Get your tax-savings range in the full plan →

How Much Tax Will You Pay in Retirement?

Retirement taxes depend on account mix, withdrawal order, Social Security timing, and required distributions. A planner helps you see those interactions early, before they become expensive.

Retirement tax planner image

Planner Inputs to Include

  • Traditional IRA / 401(k), Roth, and taxable account balances
  • Expected retirement age and spending needs
  • Current and expected future tax brackets
  • Social Security and pension timing assumptions

Planner Outputs That Matter

  • Estimated annual tax by retirement phase
  • Projected lifetime tax burden under different strategies
  • Modeled withdrawal sequence and conversion windows
  • Estimated tax savings vs. baseline approach
No planningBracket-smoothedEarly retirement yearsRMD years

Sources Used for Planning Assumptions

Tax modeling assumptions align with IRS IRA distribution and Social Security taxation guidance, then combine those rules with retirement sequencing logic for scenario comparison.

Sources: IRS Publication 590-B, IRS Publication 915, IRS RMD Guidance.

Where to Start First

If Roth conversion timing is part of your plan, start with the Roth Conversion Calculator and then compare sequencing details in the Retirement Withdrawal Strategy Calculator.

Related Pages

See Your Roth and Tax Strategy Together

Start Free Calculation on Roth Conversion Calculator