How Inherited Retirement Accounts Are Taxed

Let’s say you wake up one morning to discover a surprise windfall of cash. We’re talking money with staying power, money that can serve as a retirement enhancement and help you make all your post-employment dreams come true.

But then, you realize that money is tangled up in a web of tax rules you never signed up for. 

That, sadly, is life with an inherited IRA or 401(k). One moment you’re remembering a loved one fondly, and the next, you’re sorting through IRS forms and trying to figure out exactly what the “10-year-rule” means (to say nothing of all the other tax implications and inherited IRA rules!). 

The government hands you time to withdraw the money, but there’s a catch: those withdrawals almost always count as taxable income. And if you don’t follow the rules? You could get stuck with a penalty that stings worse than any paperwork.

Fortunately, once you understand your tax liability, this doesn’t need to be some cryptic financial maze. And believe it or not, while inherited retirement accounts do come with some tax obligations you need to be aware of, there may be tax advantages to explore, too. 

You don’t need a Ph.D. in tax law to make sense of inherited IRA taxes, but knowing the basics can save you a ton of money (and plenty of headaches). 

Whether you’ve just inherited retirement savings or you’re helping a family member, understanding the steps can help you keep more of what’s yours. From why the SECURE Act shuffled the deck for non-spouse beneficiaries, to practical ways withdrawals can drain or pad your wallet, this guide gives you straightforward answers, strategies, and the context you need.

Here’s how to make the most of inherited retirement account rules to make doing your taxes just a little bit easier.

What Is an Inherited Retirement Account?

An inherited retirement account is just what it sounds like: a retirement savings account, such as a Traditional IRA, Roth IRA, 401(k), or 403(b), that you receive as a named beneficiary after the original owner passes away. 

When you inherit one of these, you don't just get a check. Instead, the account is retitled into your name as a beneficiary.

For example, if you inherit your mother's Traditional IRA, the account might be renamed from "Jane Doe's IRA" to "Jane Doe's IRA, Deceased [Date of Death], for the benefit of John Doe, Beneficiary." 

This creates what's called a “Beneficiary IRA” or an “Inherited IRA.” You’re now the account holder, but the rules for accessing and paying taxes on the money are different from the rules for your own retirement accounts.

The 10-Year Rule for Inherited IRAs

The biggest change in recent years for inherited retirement accounts came from the SECURE Act of 2019 (which was expanded in 2022 and the rules clarified again in 2025). It introduced the 10-year rule, which applies to most non-spouse beneficiaries who inherit a retirement account.

Under this rule, you must withdraw the entire balance of the inherited account by the end of the 10th year following the year of the original owner's death. In addition, based on distribution rules that were in place, non-spouse beneficiaries may also need to take RMDs during the first nine years (if the original owner had started taking RMDs). During the tenth year, they'd take the leftover balance as a lump distribution.

You do, however, have some flexibility in how you take the money out. You can take it all at once, spread the withdrawals out over the 10 years, or wait and take it all in the final year. 

However, there are no required distributions for an inherited IRA during this 10-year period for most beneficiaries. The only requirement is that the account balance must be zero by the deadline. The penalty for failing to meet this deadline is steep: the IRS can levy a penalty of 25% of the amount that should have been withdrawn.

Spouse vs. Non-Spouse Beneficiaries

The rules for inheriting a retirement account are quite different depending on whether you are the surviving spouse or another type of beneficiary, like a child, sibling, or friend. Non-designated beneficiaries, unlike spouse or non-spouse beneficiaries, are trusts, estates, or charities that have to withdraw the entire balance within five years of the year of death. However, mandatory annual withdrawals are not required.

Rules for a Surviving Spouse

As a surviving spouse, you have the most flexibility. You can choose one of four main options:

1. Treat it as your own: You can roll the inherited funds into your own new or existing IRA. The account then becomes yours entirely, subject to the same rules as your other retirement funds. This means you won't have to take any distributions until you reach the age for required minimum distributions (RMDs) for your own accounts. This option allows the funds to continue growing tax-deferred for many more years.
2. Open an Inherited IRA: You can move the funds into a beneficiary IRA. If you choose this path and your spouse was younger than you, you can delay taking distributions until they would have reached RMD age. This can be a strategic move if you need to access funds before you turn 59½, as withdrawals from an inherited IRA avoid the 10% early withdrawal penalty.
3. Take a lump sum distribution: You can take a lump sum distribution and pay taxes on the full amount.
4. Not claim the account: You may also choose not to claim the account and simply allow it to pass on to other beneficiaries, possibly ones in a lower tax bracket.

Rules for a Non-Spouse Inherited IRA

Most non-spouse beneficiaries, like children or grandchildren, fall under the 10-year rule. You must open a beneficiary IRA and withdraw all the funds within 10 years.

However, there's a special category called "Eligible Designated Beneficiaries" (EDBs) who get to bypass the 10-year rule. EDBs can take distributions over their own life expectancy, a method often called the "stretch IRA." This group is very specific and includes:

• The surviving spouse (who has other options as well).
• A minor child of the original account owner (they must follow the 10-year rule once they reach the age of majority).
• A disabled or chronically ill individual.
• Someone who is not more than 10 years younger than the deceased account owner.
  For these individuals, the ability to stretch distributions over a lifetime can significantly reduce the annual tax burden.

How Inherited Retirement Accounts Are Taxed

The tax treatment of your withdrawals depends entirely on the type of account you inherited: a Traditional IRA or a Roth IRA.

Inherited Traditional IRA or 401(k)

When you inherit a traditional retirement account, the money inside was funded with pre-tax dollars, which  means the original owner got a tax deduction for their contributions. As a result, every dollar you withdraw from an inherited Traditional IRA or 401(k) is taxed as ordinary income.

This new income is added to your other earnings for the year, such as wages or Social Security benefits, and taxed at your marginal tax rate. 

If you take a large distribution in a single year, it could easily push you into a higher tax bracket, leading to a substantial tax bill. This is a key reason why many people choose to spread their inherited IRA distributions over the full 10-year period, helping to manage the overall tax burden.

Inherited Roth IRA or Roth 401(k)

Inheriting a Roth account is a completely different story, as Roth IRAs are funded with after-tax dollars, meaning the original owner already paid taxes on the money they contributed. Because of this, qualified withdrawals are completely tax-free.

For a withdrawal from an inherited Roth IRA to be tax-free, the original account must have been open for at least five years. If it meets that five-year holding period, every dollar you withdraw, including all the earnings, is yours to keep without owing any federal income tax. 

You still need to follow the 10-year rule (if you're a non-spouse beneficiary), but you won't have to worry about the distributions increasing your taxable income.

Tax Forms for Inherited Accounts

When you take a distribution from an inherited retirement account, you'll receive a tax form from the financial institution that holds the account.

• Form 1099-R: This is the primary form used to report distributions from pensions, annuities, and retirement plans, including inherited IRAs and inherited 401(k) taxes. You'll receive a Form 1099-R for any year in which you take money out of the account. Box 7 of this form will have a distribution code that tells the IRS the nature of the withdrawal. For an inherited account, this is often code '4', which signifies a death distribution. You'll use the information on this form to report the income on your federal tax return.
• Form 8606: You'll only need this form if you inherited a Roth IRA and took a non-qualified distribution. This could happen if the original Roth account was less than five years old. In that case, the earnings portion of your withdrawal could be taxable, and you would use Form 8606 to calculate the taxable amount.

How Inherited Accounts Affect Your Retirement Taxes

Withdrawals from inherited traditional retirement accounts don't just add to your income tax bill, but can also have a domino effect on other parts of your retirement finances. Since these distributions are counted as part of your adjusted gross income (AGI), a large withdrawal can trigger other taxes and costs. 

For example, a higher AGI can cause more of your Social Security benefits to become taxable. It can also push you into a higher bracket for Medicare's Income-Related Monthly Adjustment Amount (IRMAA), which means you'll pay higher premiums for Medicare Part B and Part D.

Plan ahead with a tax planning professional for these intricacies, as it will help you keep more money in your pocket when layered rules threaten to chip away at your savings. By spreading withdrawals over the 10-year period, you can often sidestep unnecessary penalties and keep your annual income below thresholds that hike your Medicare or Social Security tax bills.

Bring Home More of Your Inheritance With Quality Estate Planning

Getting an inherited IRA or 401(k) shouldn’t feel like a trap, and it doesn’t have to blow up your tax bill if you play your cards right. 

You’re juggling deadlines, distribution rules, and plenty of fine print, but armed with what you’ve just learned, you’re better equipped than most heirs. Whether you inherited a Roth that’s (almost always) tax-free, or a traditional IRA that could mess with your Medicare rates, you’ve got options.

Don’t just react, though. Plan. Spread your withdrawals, match them to lower-income years, and watch for those IRMAA and Social Security trip wires. If a windfall is headed your way, give yourself a moment to strategize before hitting “withdraw.” 

The IRS rules are complicated, but you don’t have to lose sleep over them, especially when it comes to beneficiary IRA rules. When in doubt, a trusted tax professional or programs like Filetax can help you with the more complex details and make sure you’re in the clear. Learn more in our detailed guide to taxes in retirement.

Handle your inherited account thoughtfully, and you’ll keep more for what matters most to you, not Uncle Sam.

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