Retirement Withdrawal Sequencer

The order you withdraw matters. Compare three strategies — conventional (taxable→IRA→Roth), proportional, and strategic bracket-filling — across your full retirement period.

By NumbersLab Editorial·Updated for 2026 tax year·Editorial standards

Strategic financial planning visualization — representing tax-optimal withdrawal order across taxable, Traditional IRA, and Roth accounts — Photo by PiggyBank on Unsplash

Interactive Calculator

All inputs adjust the result in real time. No data leaves your browser.

Tax Year

Taxable Brokerage Balance

Traditional IRA / 401(k) Balance

Roth IRA / 401(k) Balance

Annual Spending Need

Retirement Years to Model

Filing Status

Best Strategy

Proportional$74,904 less tax than worst strategy

Equal % from each • 30 years funded

Conventional $161,637 total tax

Taxable → IRA → Roth

Years funded: 30 • Final balance: $2,198,633

Proportional (Best)$86,733 total tax

Equal % from each

Years funded: 30 • Final balance: $2,198,633

Strategic $95,450 total tax

Fill 12% bracket from IRA, supplement Roth

Years funded: 30 • Final balance: $2,198,633

Proportional Final State (Year 30)

Taxable Brokerage Remaining$610,731

Traditional IRA Remaining$1,221,463

Roth IRA Remaining$366,439

Total Final Balance$2,198,633

Total Lifetime Tax$86,733

Total Withdrawn$2,400,000

Effective Tax Rate3.6%

SponsoredDisclosure

Got your numbers — now build the strategy.

Calculators give you the number. These three books give you the framework — when to convert, how to sequence withdrawals, and how to integrate with estate planning. Required reading if you're actually planning retirement, not just curious.

Most Comprehensive

Retirement Planning Guidebook

by Wade Pfau, PhD

Researcher-grade reference on the entire retirement-income decision: Social Security claiming, withdrawal rates, annuities, tax-efficient sequencing.

View on Amazon →

Retirement Financial Planning Guidebook

by Gordon Wells

View on Amazon →

Living Trusts, Retirement & Estate Planning

by Estate Planning Guide

View on Amazon →

The Background

Most retirement guides recommend the 'conventional' withdrawal order: taxable accounts first, then Traditional IRAs/401(k)s, then Roth last. The logic: defer taxes as long as possible, let Roth grow tax-free for heirs. But this often produces higher lifetime tax than alternatives because it concentrates Traditional withdrawals in later years (when RMDs and Social Security stack), pushing into higher brackets.

Proportional withdrawal pulls equal percentages from each account type each year. Tax burden is spread evenly. Simple but rarely optimal because it doesn't take advantage of bracket-filling opportunities or leave Roth to compound tax-free.

Strategic bracket-filling withdraws from Traditional IRA up to the top of the 12% bracket (or other targeted bracket), supplements with tax-free Roth for remaining spending, and preserves taxable accounts for end-of-life (when stepped-up basis at death eliminates capital gains). This typically minimizes lifetime tax.

The savings between strategies can be $50,000-$200,000+ over a 30-year retirement, and the strategy doesn't require complex tax software — just discipline about the withdrawal order. Use this calculator to model your specific situation.

Frequently Asked

What order should I withdraw retirement accounts?+

The conventional wisdom is: taxable brokerage first, then Traditional IRA/401(k), then Roth IRA last. This preserves tax-free Roth growth as long as possible and lets taxable accounts benefit from stepped-up basis at death. However, this conventional sequence often leaves money on the table by missing opportunities to fill lower brackets in the early retirement years. A strategic approach — filling the 12% bracket from Traditional in years when you have low other income, while spending taxable to bridge — can save $50,000-$200,000+ in lifetime federal tax compared to the conventional sequence.

What is tax-efficient retirement withdrawal sequencing?+

Tax-efficient sequencing means choosing which account to draw from each year to minimize lifetime tax. The optimal strategy mixes withdrawals across taxable, Traditional, and Roth based on annual marginal rates rather than draining one account at a time. Common refinements: fill the 12% bracket from Traditional every year regardless of need (then save the cash); accelerate Traditional distributions in years before claiming Social Security (avoiding the SS taxation cascade); use Roth withdrawals to keep MAGI below IRMAA tiers in Medicare years; let Roth grow until late retirement when other accounts are depleted.

How much can I save with strategic withdrawal sequencing?+

Research from Vanguard, Schwab, and academic sources (Wade Pfau, Michael Kitces) consistently shows strategic sequencing saves 10-30% of lifetime federal tax compared to conventional withdrawal order. For a retiree with $1-2M in pre-tax accounts, that's typically $50,000-$200,000 over a 30-year retirement. The savings come from: avoiding bracket spikes during RMD years (by drawing down Traditional earlier), reducing Social Security taxation in early retirement, and managing IRMAA tier exposure on Medicare. The exact savings depend on portfolio size, income, and state of residence.

Should I take Social Security before withdrawing from my IRA?+

Often, no. Delaying Social Security to age 70 increases your benefit by 24% above Full Retirement Age (FRA 67), permanently and inflation-adjusted. This delay produces a guaranteed inflation-protected stream that no annuity product matches at comparable cost. The years between retirement and SS claiming (typically 65-70) are also the prime Roth conversion window. Drawing down Traditional balances during these low-income years before claiming SS achieves two goals simultaneously: filling lower tax brackets at favorable rates and reducing future RMD-driven income that would push SS taxation higher.

What is the bracket-filling strategy?+

Bracket-filling means voluntarily withdrawing exactly enough from Traditional accounts each year to fill the top of your current federal bracket — even if you don't need the cash. The withdrawn amount can be converted to Roth, spent, or deposited into a taxable brokerage. The goal is to use the 12% and 22% brackets every year, paying tax at those rates rather than letting balances grow into the 24%, 32%, or higher RMD-era brackets. Over a 30-year retirement, consistent bracket-filling can compress the future tax-driven income peaks that hurt most by spreading recognition across the lowest-tax years.