Retirement Withdrawal Strategy: Tax-Efficient Drawdown
Robert Stowe, AAMS® | Investment Advisor
The sequence in which you tap your retirement accounts can significantly impact both portfolio longevity and lifetime tax liability. This guide presents a tax-smart order for withdrawing assets, moving from fully taxed assets to tax-deferred, and finally to tax-free accounts, while highlighting when breaking this sequence may make sense for your situation.
The Core Idea
A generic withdrawal order exists, but "tax bracket management" (smoothing income over time) often requires breaking the sequence to fill low tax brackets or avoid cliff penalties like IRMAA surcharges or ACA subsidy loss. Treat the order below as a starting point, not a rule.
The Withdrawal Order: Which Accounts to Tap First
A useful way to organize retirement money is by when you will need it. The four buckets below run from the account you spend out of day to day to the long-term investments you will not touch for years. The buckets are connected: over time, money flows from one to the next as you spend. Within the long-term bucket, which account you tap first also affects your taxes, which is what the rest of this guide covers.
Pay-Your-Bills Account
Day-to-day spending, used this month.
- Checking
Cash-Like Buffer
Lower-risk money for the next few months to about two years.
- Bonds
- High-yield savings
- Money market
- CDs
Near-Term Investments
Held in a taxable brokerage, a regular (taxable) investment account, for money you may need within a few years.
- Stocks & ETFs
- Bonds
- Mutual funds
Long-Term Investments
Retirement accounts for years down the road, holding stocks, bonds, ETFs, and more.
- 401(k) & 403(b)
- Traditional & Roth IRA
- 457(b), SEP & SIMPLE IRA
- Roth 401(k)
- HSA
You spend from the left. Over time, each bucket is refilled from the one to its right.
Income streams such as pensions, Social Security, and annuities sit outside these buckets. They pay out on their own schedule and are generally taxed as ordinary income, so you plan around them rather than draw them down.
How This Works in Practice
Each tier is taxed differently. The general idea is to spend your most heavily taxed dollars first and leave the tax-advantaged accounts (the HSA and Roth IRA) to keep growing as long as possible. This sequencing is meant to influence lifetime taxes, how long a portfolio lasts, and income-based costs such as Medicare premiums and health insurance subsidies. The actual effect depends on your accounts, income, and tax situation, and for some retirees a different order is more appropriate.
This does not happen automatically. In practice, most retirees spend from the cash buffer for everyday expenses, then refill that buffer on a regular cadence by selling from the next account in the order. You, or an advisor acting on your behalf, are responsible for initiating those sales and transfers, tracking which account is next in line, and reviewing the plan as your balances, tax brackets, and income needs change.
Drawing Down the Buckets, Step by Step
The steps below move through those buckets in spending order. Step 1 is your cash (both the Pay-Your-Bills account and the Cash-Like Buffer), step 2 is your Near-Term Investments, and steps 3 through 6 work through your Long-Term Investments in a tax-efficient order.
Best for: monthly bills and an emergency reserve.
Your cash buffer serves as immediate liquidity and a psychological safety net against sequence of returns risk.
- Checking: Keep only 1–2 months of expenses to avoid "cash drag"
- High-Yield Savings: Hold 6–24 months of living expenses here
- Trade-off: Holding more cash than you need can reduce long-term returns, since cash has historically earned less than a diversified portfolio over time. It also lowers short-term volatility, which is the point of a buffer.
Best for: bridging to age 59½ and low-income years.
Taxable accounts serve as the "bridge" to age 59½, generating capital gains (often taxed lower than ordinary income) rather than ordinary income.
Specific Identification Strategy
Specific identification often saves more than the FIFO or Average Cost defaults:
- High Basis First: Sell lots with highest cost basis to minimize realized gains
- Loss Harvesting: Sell positions at a loss to offset gains or up to $3,000 of ordinary income
The 0% Capital Gains Bracket
2026 Thresholds (per IRS Topic 409):
- Single: $0 to $49,450 taxable income
- Married Filing Jointly: $0 to $98,900
If your other income is low, realize gains up to these limits to pay 0% federal tax on long-term capital gains. Tax brackets adjust annually for inflation.
Best for: meeting mandatory distributions on schedule.
Due to the SECURE Act 2.0, inherited traditional IRAs represent mandatory income that you often cannot defer.
- 10-Year Rule: Most non-spouse beneficiaries must deplete the account within 10 years of the original owner's death
- Annual RMDs: If the original owner had already started RMDs, the beneficiary must continue taking annual distributions AND empty the account by year 10
Best for: filling the standard deduction and lower brackets.
These accounts form the "engine" of most retirement portfolios, taxed as ordinary income upon withdrawal.
The 457(b) Advantage
No 10% Penalty: Unlike 401(k)s or IRAs, governmental 457(b) funds can be withdrawn penalty-free upon separation from service, regardless of age.
Priority: If retiring early (FIRE), drain the 457(b) before touching other accounts to preserve penalty-free access to capital.
Traditional IRA/401(k)
Access without the 10% early withdrawal penalty generally begins at age 59½.
Rule of 55: If you leave your job in or after the year you turn 55, you can access that specific employer's 401(k) penalty-free.
Best for: medical reimbursement and tactical tax-free cash flow.
Health Savings Account (HSA)
Triple Tax Advantage: Tax-deductible contributions, tax-free growth, tax-free withdrawal for qualified medical expenses.
Strategy: Pay medical expenses out of pocket if possible, letting the HSA grow. Redeem receipts for tax-free cash later when income is needed without triggering taxes.
After Age 65: HSA funds can be withdrawn for any purpose without the 20% penalty (though non-medical withdrawals are taxed as ordinary income, similar to a traditional IRA). This flexibility makes the HSA function as a secondary retirement account after Medicare eligibility, providing additional income planning options.
Best for: large purchases, legacy, and tax-bracket management.
Roth IRA
Sequence: Generally best saved for last because it grows tax-free and has no RMDs for the original owner.
Tactical Usage: Use Roth withdrawals to pay for "lumpy" expenses (new roof, dream vacation) to avoid spiking taxable income into a higher bracket or triggering IRMAA surcharges.
Roth 401(k) Update: Under SECURE Act 2.0, designated Roth accounts in employer plans (Roth 401(k), Roth 403(b)) no longer require RMDs for the original owner starting in 2024. This eliminates a previous disadvantage of Roth 401(k)s compared to Roth IRAs and may reduce the urgency to roll Roth 401(k) funds into a Roth IRA solely to avoid RMDs.
When to Break the Order
The hierarchy above is a generic best practice, but strict adherence can lead to the "Tax Torpedo," a situation where you waste valuable tax advantages.
The Social Security Tax Torpedo
One less obvious tax trap occurs when traditional IRA withdrawals push combined income above the thresholds that cause Social Security benefits to become taxable. Under IRS rules for taxing Social Security, up to 85% of benefits can be taxed once combined income exceeds $34,000 (single) or $44,000 (married filing jointly).
The "torpedo" effect happens because each additional dollar of traditional IRA withdrawal can make $0.50 to $0.85 of previously untaxed Social Security taxable. That can push your effective marginal rate well above your stated bracket: across the income range where benefits phase into taxation, a 22% bracket can behave more like 40%. Roth withdrawals and careful income planning can help reduce the effect.
Three situations commonly justify departing from the default order:
Filling the Bracket
If you live only off cash and taxable brokerage for 10 years, your taxable income might be near $0. You would waste your Standard Deduction ($32,200 for married couples in 2026, adjusted annually) and the lower tax brackets (10% and 12%).
Even while spending down taxable accounts, some retirees perform Roth Conversions or take Traditional IRA withdrawals up to the top of the 12% bracket (approximately $100,800 taxable income for couples in 2026). This may help smooth out the tax bill over your lifetime, though individual circumstances vary.
ACA Subsidies (Pre-65)
If you are pre-Medicare and using the Health Insurance Marketplace, modified adjusted gross income (MAGI) drives your subsidy.
- Counts: Withdrawals from Traditional IRAs
- Does not count: Withdrawals from Roth IRAs and basis recovery from taxable brokerage
Strategy: Prioritize taxable and Roth withdrawals to keep reported income low enough to maximize health insurance subsidies.
IRMAA Surcharges (Age 63+)
Medicare premiums are based on income from two years prior. High income from Traditional IRA withdrawals can trigger IRMAA (Income-Related Monthly Adjustment Amount) surcharges, increasing Medicare Part B and D premiums by thousands of dollars.
Potential approach: Some retirees use Roth/HSA funds to keep MAGI below IRMAA thresholds (e.g., $218,000 for couples in 2026). These thresholds adjust annually.
Key Takeaways
- Follow the buckets as a baseline: cash → taxable investments → tax-deferred accounts (401(k), IRA, 457(b)) → tax-free accounts (HSA, Roth)
- Don't waste low tax brackets: The Standard Deduction and 10%/12% brackets are "use it or lose it" assets
- Consider healthcare costs: ACA subsidies (pre-65) and IRMAA surcharges (65+) can raise your effective tax rate in ways the headline brackets do not show
- Use Specific Identification: Specific identification often provides tax savings compared to FIFO or Average Cost defaults
- Prioritize 457(b) for early retirement: The penalty-free access makes it well-suited for FIRE scenarios
"Every retiree's situation is a unique fingerprint of assets, tax basis, and spending needs. While the generic order preserves tax-advantaged growth effectively, the Standard Deduction and Low Tax Brackets are 'use it or lose it' assets."
Robert Stowe, AAMS®
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IRMAA Guide
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Investment Policy Statement
Document your withdrawal strategy with a formal IPS that guides retirement decisions.
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