Most retirees focus on how much to withdraw — but which account you pull from first can quietly cost you tens of thousands in lifetime taxes.

The wrong order can trigger higher tax brackets, bigger Medicare premiums, and painful RMDs later.

The right order can do the opposite.

Why Withdrawal Order Matters More Than You Think

In retirement, you usually have three different money buckets: taxable accounts, traditional IRAs or 401(k)s, and Roth accounts. Each one is taxed differently, which means the order you tap them matters a lot.

Many retirees withdraw randomly, taking money wherever it feels easiest. That often pushes income higher than necessary and accelerates taxes that could have been delayed or reduced.

Tax planning in retirement isn’t about avoiding taxes completely. It’s about controlling when and how much you pay over your lifetime.

One retirement tax planner summed it up this way: “The IRS doesn’t care which account you use — but you should.”

The Smart Order That Can Lower Lifetime Taxes

For many retirees, the most efficient strategy starts with taxable accounts. These accounts are funded with after-tax dollars, and much of the balance may already be eligible for favorable capital gains rates.

Using taxable money first can keep your ordinary income low, which helps you stay in lower tax brackets and avoid Medicare IRMAA surcharges tied to income. It also gives your tax-deferred accounts more time to grow.

Next usually comes traditional IRA and 401(k) money — but carefully. Withdrawals from these accounts are taxed as ordinary income, so timing matters. The goal is to use them gradually, filling up lower tax brackets without spilling into higher ones.

This approach can significantly reduce future Required Minimum Distributions. By drawing down traditional accounts earlier and strategically, you shrink the balance that will later be forced out by the IRS at age 73 and beyond.

Finally, Roth accounts are often best left for last. Roth withdrawals are tax-free, don’t trigger IRMAA, and don’t count as income. Letting Roth money grow untouched for as long as possible maximizes its value.

Roth dollars are especially powerful later in life, when RMDs and Social Security push income higher. Having tax-free money available gives you flexibility when you need it most.

Some retirees even reserve Roth accounts for major one-time expenses, like a new roof, medical costs, or helping family — expenses that would otherwise spike taxable income.

This withdrawal order isn’t rigid. It adjusts based on your tax bracket, income needs, and market conditions. But the principle stays the same: protect Roth growth, manage traditional withdrawals, and use taxable money strategically.

When done correctly, this approach can: • Reduce total lifetime taxes • Lower future RMD pressure • Avoid Medicare premium surprises • Preserve tax-free income flexibility

Retirement isn’t just about having money — it’s about keeping more of it. The order you spend your dollars can be just as important as how much you saved.