Tax-Efficient Retirement Withdrawal Order: Which Accounts to Tap First

You've spent decades saving in 401(k)s, IRAs, Roth accounts, and taxable brokerage accounts. Now comes the question that could determine whether you pay $150,000 or $200,000+ in lifetime retirement taxes: which accounts do you withdraw from first? The withdrawal order decision is one of the highest-impact, lowest-effort tax strategies available to retirees — and most people get it wrong.

Why Withdrawal Order Matters So Much

Every dollar you withdraw from a traditional 401(k) or IRA is taxed as ordinary income. Every dollar from a Roth is tax-free. And taxable brokerage withdrawals are taxed at capital gains rates (typically 0% or 15% for most retirees). The order you tap these accounts determines:

• Your federal tax bracket each year — Pulling too much from tax-deferred accounts can push you from the 12% bracket into 22% or higher
• How much of your Social Security is taxed — Up to 85% of Social Security becomes taxable based on your "combined income," which includes tax-deferred withdrawals
• Your Medicare premiums — IRMAA surcharges add $1,000-$5,000+ per year to Medicare premiums when income exceeds certain thresholds
• How long your portfolio lasts — Tax-efficient withdrawals mean less goes to the IRS and more stays invested

The Standard Withdrawal Order

The generally accepted tax-efficient withdrawal sequence is:

Step 1: Taxable Accounts First (Bank, Brokerage)

Withdraw from bank accounts and taxable brokerage accounts first. Why?

• Lower tax rates — Long-term capital gains are taxed at 0% (up to ~$94,050 for couples in 2026) or 15%, compared to ordinary income rates of 22-37% on 401(k)/IRA withdrawals
• Tax-loss harvesting — You can sell losing positions to offset gains
• Step-up in basis — Gains disappear if you die holding the asset (your heirs get a stepped-up cost basis)

Step 2: Tax-Deferred Accounts (401k, Traditional IRA)

After taxable accounts are depleted, draw from tax-deferred accounts. Every dollar withdrawn is taxed as ordinary income, so you want to manage the pace carefully to stay in lower brackets.

Step 3: Roth Accounts Last

Roth IRAs and Roth 401(k)s grow and are withdrawn tax-free. By leaving them for last:

• Maximum tax-free compounding — Every year your Roth stays untouched, it grows without any future tax liability
• Flexibility in later years — Roth withdrawals don't count as income, so they don't trigger Social Security taxation or IRMAA surcharges
• No RMDs — Roth IRAs have no Required Minimum Distributions during your lifetime (as of 2024 rules), so they can grow indefinitely

When to Break the Standard Order

The standard sequence is a good default, but the real savings come from strategically breaking it. Here are the most common — and most valuable — exceptions:

The Roth Conversion Window (Retirement to RMD Age)

If you retire at 60-65 but don't start Social Security until later, you may have several years of unusually low income. This is the ideal time to convert traditional IRA/401(k) money to Roth — paying tax now at a low rate to avoid paying at a higher rate later.

During this window, you might actually withdraw from tax-deferred accounts before taxable accounts — not for spending, but for Roth conversions. The goal is to "fill up" lower tax brackets with conversions while your income is low.

Staying Below IRMAA Thresholds

IRMAA brackets create cliffs where crossing a threshold by even $1 increases your Medicare premiums by $1,000+ per year. In years when you're close to a threshold, you might pull from Roth accounts instead of tax-deferred to stay below the line.

Managing Social Security Taxation

Social Security benefits become taxable based on your "combined income" (AGI + nontaxable interest + half of Social Security). If you can keep combined income below $32,000 (couples) by using Roth withdrawals instead of tax-deferred, you can keep Social Security tax-free. Between $32,000 and $44,000, 50% is taxable. Above $44,000, up to 85% is taxable.

The 0% Capital Gains Bracket

In 2026, married couples filing jointly can realize up to ~$94,050 in taxable income (including long-term capital gains) at the 0% capital gains rate. If your ordinary income is low, you might deliberately sell appreciated investments in taxable accounts to harvest gains at 0% — even if you don't need the money for spending.

Real-World Example: The $54,000 Difference

Meet Tom and Linda, both 65, with the following:

• Traditional IRA: $800,000
• Roth IRA: $200,000
• Taxable brokerage: $300,000
• Social Security (combined): $48,000/year (starting at 67)
• Annual spending need: $85,000

Strategy A: Random Withdrawals (No Tax Planning)

Tom and Linda withdraw evenly from all accounts as needed. Over 25 years:

• They frequently land in the 22% bracket
• 85% of Social Security is taxed every year
• They hit IRMAA surcharges in several years
• Total lifetime federal taxes: ~$195,000

Strategy B: Optimized Withdrawal Order

Tom and Linda follow a tax-aware sequence:

• Ages 65-67 (before SS): Do Roth conversions up to the top of the 12% bracket (~$96,950 for couples), funded by taxable account withdrawals for living expenses
• Ages 67-72 (SS starts, before RMDs): Draw primarily from taxable brokerage, supplement with small tax-deferred withdrawals to stay in the 12% bracket
• Ages 73+ (RMDs begin): Take RMDs as required, use Roth for any additional needs to avoid bracket creep and IRMAA

Result over 25 years:

• They stay in the 12% bracket most years
• Social Security taxation is minimized in early years
• No IRMAA surcharges
• Roth balance grows tax-free for later years and potential inheritance
• Total lifetime federal taxes: ~$141,000

Tax savings: approximately $54,000 — and that doesn't count the additional growth on the Roth conversions or the avoided IRMAA surcharges.

Common Mistakes to Avoid

1. Ignoring the Roth conversion window — The years between retirement and RMDs (and before Social Security) are the most valuable tax-planning years of your life. Skipping Roth conversions during this period means larger RMDs later, more Social Security taxation, and higher IRMAA premiums.
2. Withdrawing only from tax-deferred accounts — Many retirees default to pulling from their 401(k) or IRA for everything, which creates unnecessarily high taxable income. Mixing in Roth or taxable account withdrawals gives you bracket control.
3. Not considering state taxes — Some states don't tax retirement income, Social Security, or capital gains. Your overall tax minimization strategy should account for state rules, which may change the optimal withdrawal sequence.
4. Forgetting about RMDs until they hit — RMDs from a large tax-deferred balance can force you into higher brackets. Planning ahead by doing conversions or accelerated withdrawals before age 73 can dramatically reduce this problem.

Using Bullseye to Optimize Your Withdrawal Order

Bullseye is built to help you model exactly these decisions:

• Year-by-year tax projections — See your federal and state tax bill for every year through age 95, with different withdrawal strategies
• Withdrawal priority modeling — Bullseye shows how it draws from different account types (bank, brokerage, tax-deferred, Roth) in priority order each year
• RMD calculations — Automatic RMD projections show how forced distributions affect your tax brackets in future years
• IRMAA tracking — See exactly when your income crosses IRMAA thresholds and how much extra you'll pay in Medicare premiums
• Scenario testing — Use Bullseye's Scenarios feature to compare different withdrawal sequences side-by-side and see the cumulative tax difference over your retirement