Roth vs. Taxable Withdrawal Sequencing

If both your Roth and your taxable account come out nearly tax-free, does it matter which one you spend first? It does, and the reason is subtle. Spending from either feels painless today, but the two leave behind very different futures, for your tax bracket and for the people who inherit what’s left. Sequencing them well is where a lot of quiet value hides.

Why these two get compared

These are the gentle accounts. A Roth IRA comes out completely tax-free, and a taxable brokerage account only taxes the gain, often at the favorable long-term capital gains rate. Because neither one slams you with ordinary income, retirees tend to treat them as interchangeable.

They aren’t. Each carries a hidden feature that the other lacks, and the whole sequencing decision turns on those two features.

The taxable account’s hidden gift: step-up

When you die, your heirs inherit your taxable assets at a stepped-up basis, meaning the cost basis resets to the value on your date of death. All the gain that built up during your life is wiped out for tax purposes. Sell the morning after, and there’s essentially no capital gains tax.

That changes the math. The appreciated stock you’ve held for decades may be worth more to your kids left untouched than spent. Drain it for spending money and you throw away the step-up. So for legacy-minded households, the instinct to spend taxable first can be exactly backwards.

There’s a live tax angle too. For 2026, a married couple with taxable income up to $98,900 pays 0% on long-term gains. In a low-income year you can sometimes sell appreciated holdings and pay nothing, resetting your basis higher on purpose. That favors using the taxable account in specific windows, not draining it on autopilot.

The Roth’s hidden gift: control

A Roth has no RMDs during your life, it doesn’t add to the income that taxes your Social Security or feeds IRMAA, the income-based Medicare surcharge, and it passes to heirs tax-free. That makes it the most flexible dollar you own and the worst one to burn early without a reason.

The smart use of a Roth is as a release valve. In a year when one more dollar of ordinary income would tip you into a higher bracket or over an IRMAA line, you spend from the Roth instead and stay clean. It lets you control your taxable income to the dollar, which is leverage no other account gives you.

Putting the sequence together

A workable default for most affluent retirees:

• Fund the low-bracket years with Roth conversions, not Roth spending. Your 60s, before RMDs, are for converting traditional money at cheap rates, not draining the Roth you just built.
• Spend taxable strategically. Use it to harvest gains in 0%-bracket years and to fill spending, but protect the most-appreciated lots for the step-up.
• Hold the Roth as the surgical tool. Tap it to dodge a bracket jump or an IRMAA tier, and to leave a tax-free inheritance if legacy matters.

This sits inside the larger tax-efficient withdrawal order. Roth versus taxable is the fine-tuning once the big tax-deferred question is handled.

If your accounts are large

At $3M+ the step-up alone can be worth a serious sum, so blindly spending taxable first can quietly cost your heirs more than any single tax move you make in your own lifetime. And the Roth’s exemption from RMDs and from the IRMAA calculation makes it disproportionately valuable when your other income is already high. The bigger the estate, the more both hidden features matter.

The lesson is that “tax-free today” and “best to spend today” are not the same thing. Spend the account whose absence helps you most later, and you turn two painless withdrawals into a real edge.