How Are Inherited IRA Withdrawals Taxed Under The 10-Year Rule

Inherited IRA withdrawals under the 10-year rule are taxed as ordinary income in the year you take them; there is no step-up in basis, and the entire pre-tax balance is fully taxable upon distribution. This means if you withdraw a sum set by your plan custodian, check your latest quarterly statement for the current pre-tax total, that full amount is added to your other taxable income for that year, and you owe tax at your marginal rate, not at a special capital gains rate. The confusion often stems from how inherited taxable brokerage holdings work, but an IRA is treated very differently by the IRS. Only an inherited tax-deferred IRA converts every dollar of pre-tax growth into ordinary income with no basis step-up, a treatment no other inherited asset class replicates.

No step-up in basis for inherited IRA withdrawals

When you inherit a taxable brokerage portfolio, the cost basis is “stepped up” to the date of the prior owner’s death, so if you sell immediately, you owe little or no capital gains tax. That rule does not apply to tax-deferred IRAs. The IRS views the entire balance of a traditional IRA as “pre-tax” money, the prior owner never paid income tax on those contributions or earnings. As the beneficiary, you are now responsible for that deferred tax. There is no basis to step up because the retirement vehicle was never taxed to begin with. The full withdrawal amount is ordinary income, subject to the same federal and state income tax brackets as your salary or freelance income. This is a core distinction that trips up many heirs, who mistakenly assume the inherited plan gets a fresh valuation at death. The only exception is if the prior owner made nondeductible contributions (after-tax dollars), which would create a small basis, but that’s rare and requires filing Form 8606.

The tax impact of lump-sum versus annual withdrawals

The 10-year rule gives you a full decade to empty the inherited retirement vehicle, but it does not require annual distributions, you can take money whenever you like within that window. The trap is taking a lump sum in year one. For example, if you inherit a balance your custodian currently values at a specific dollar figure, visit your provider’s portal for the official daily valuation, and withdraw it all in a single year while earning a salary your employer sets, your taxable income jumps to a combined total that can push you into the top federal bracket (37% in 2025) plus a 3.8% Net Investment Income Tax if applicable. That same balance spread evenly at a portion each year, as determined by your own withdrawal schedule, might keep you in the 22% or 24% bracket, saving tens of thousands in taxes. The math favors annual or semi-annual withdrawals that keep you within your current bracket, or that fill up lower brackets before you retire or take a sabbatical. Use the 10-year clock to your advantage: if you have a low-income year, withdraw more; if you have a high-income year, withdraw less. The key is to project your income each year and plan withdrawals to smooth your tax burden. This is where understanding ordinary income brackets matters more than any other planning technique.

What happens if you miss the 10-year deadline

The IRS is unforgiving if you blow the deadline. If the inherited plan still has a balance at the end of the 10th calendar year following the prior owner’s death, you face a 50% excise tax on the amount that should have been withdrawn but wasn’t. That’s on top of the ordinary income tax you still owe on the distributed amount once you finally take it. For example, if a remaining balance, confirm the exact figure with your plan administrator’s year-end statement, stays put after year 10, the IRS hits you with a penalty equal to half that sum, plus you pay income tax on the residual when you eventually withdraw it, effectively a 50% surcharge on top of your normal rate. There is no automatic waiver; you must file Form 5329 with an explanation and request a reasonable cause exception. The IRS grants these rarely, typically only for severe illness, natural disasters, or errors that are clearly not due to negligence. The best strategy is to set calendar reminders for each year and withdraw at least the minimum required to avoid the penalty, even if you don’t need the money, you can always reinvest it in a taxable brokerage holding. Missing the deadline is one of the most expensive mistakes an inherited IRA beneficiary can make.

Inherited Roth IRAs are the exception

If the inherited retirement vehicle is a Roth IRA, the 10-year rule still applies for most non-spouse beneficiaries (you must empty it within 10 years), but the tax treatment flips. Qualified distributions from an inherited Roth IRA are entirely tax-free, provided the prior owner held the Roth for at least five years before their death. That five-year clock starts with the prior owner’s first contribution to any Roth IRA, not with your inheritance. If the five-year test is met, every dollar you withdraw is free from federal income tax, and there is no penalty regardless of your age. If the prior owner died before the five years were up, the earnings portion of your withdrawal becomes taxable, but the contributions come out first and are always tax-free. This makes inherited Roth IRAs far more valuable than traditional ones, you get tax-free growth for up to a decade, then withdraw the entire balance without owing a cent. The only real planning question is whether to stretch withdrawals to keep the tax-free growth compounding, or take distributions earlier to protect against future tax law changes. Either way, the tax bill is zero, which is why financial planners often advise clients to spend down traditional IRAs first and leave Roth assets to heirs.

Frequently Asked Questions

Can I disclaim an inherited IRA to let it pass to my children?

Yes, you can disclaim all or part of an inherited IRA within nine months of the prior owner’s death. The inherited plan then passes to the next named beneficiary, typically your children, who start their own 10-year clock. This only makes sense if you don’t need the money and your marginal tax rate is higher than your children’s.

Does the 10-year rule apply if the prior owner died before age 72?

Yes, the 10-year rule applies regardless of the prior owner’s age at death, but only if they died in 2020 or later. For deaths before 2020, different required minimum distribution (RMD) rules apply based on the beneficiary’s life expectancy. The SECURE Act of 2019 changed the rules for most non-spouse beneficiaries.

Can I take a partial withdrawal in year 10 and still avoid the penalty?

No. The inherited plan must be fully empty by December 31 of the 10th calendar year following the year of death. Even a single dollar left in the retirement vehicle at the end of that year triggers the 50% excise tax on the entire remaining balance. You must take your final distribution by the end of year 10, not just initiate it. For a deeper look at how these rules fit into your broader financial picture, see our guide on retirement & investment taxes, which covers the full landscape of Retirement & Investment Taxes: What to Know and How to Handle It.