Inherited IRA and 401(k) Rules: The Complete Guide (2026)

How the SECURE Act Changed Everything

Before 2020, non-spouse beneficiaries could "stretch" an inherited IRA over their own life expectancy, taking small required minimum distributions (RMDs) each year while the rest of the account grew tax-deferred. For a 40-year-old inheriting a $500,000 IRA, this meant distributions spread over 40+ years.

The SECURE Act of 2019 (effective January 1, 2020) eliminated the stretch for most beneficiaries. The key changes:

• 10-year rule: Most non-spouse beneficiaries must withdraw the entire inherited account within 10 years of the original owner's death.
• No annual RMD requirement (initially): The IRS initially suggested there were no required annual distributions during the 10-year window. However, proposed regulations in 2022 added complexity (more on this below).
• Eligible designated beneficiaries: Five categories of beneficiaries are exempt from the 10-year rule and can still stretch distributions.
• Applies to deaths after December 31, 2019: If the original owner died before 2020, the old stretch rules still apply.

SECURE Act 2.0 (passed December 2022) made additional changes, including raising the RMD age for original owners to 73 (and 75 starting in 2033), and clarifying certain beneficiary rules.

The 10-Year Rule in Detail

The 10-year rule applies to most non-spouse beneficiaries who inherit an IRA or 401(k) from someone who died on or after January 1, 2020. Here is how it works:

• The entire account balance must be withdrawn by December 31 of the 10th year following the year of the owner's death.
• You can take distributions in any pattern you choose during those 10 years: all at once, equal annual amounts, nothing for 9 years and then everything in year 10, or any combination.
• There is no penalty for early withdrawal (the 10% penalty for withdrawals before age 59.5 does not apply to inherited accounts).
• For traditional IRAs, every dollar withdrawn is taxed as ordinary income. For Roth IRAs, withdrawals are tax-free (assuming the 5-year rule is met).

The Annual RMD Complication

In 2022, the IRS proposed regulations requiring annual RMDs during the 10-year period if the original owner had already started taking RMDs (i.e., was over age 73 at death). This caused significant confusion. The IRS waived penalties for missed RMDs in 2021, 2022, 2023, 2024, and 2025. Final regulations are expected in 2026. Here is the practical guidance:

• Owner died before their RMD start date: No annual RMDs required. Just empty the account by the end of year 10.
• Owner died on or after their RMD start date: Annual RMDs are likely required in years 1 through 9, based on the beneficiary's life expectancy, with the remaining balance withdrawn in year 10.
• When in doubt: Taking some distributions each year is the safest approach and often the best tax strategy regardless.

Spousal Beneficiaries: Your Options

Surviving spouses have the most flexibility of any beneficiary type. You have several options:

Option 1: Spousal Rollover (Most Common)

Roll the inherited account into your own IRA. This is generally the best option if you do not need the money immediately. Benefits include:

• RMDs are based on your own age, not your deceased spouse's age.
• The account continues to grow tax-deferred.
• You can name your own beneficiaries.
• You can contribute to the account (if you have earned income and meet age requirements).

Caution: If you are under 59.5 and need to access the funds, a spousal rollover triggers the 10% early withdrawal penalty. In that case, keeping the account as an inherited IRA may be better.

Option 2: Treat as Inherited IRA

Keep the account titled as an inherited IRA. This allows penalty-free withdrawals at any age, which is valuable if you are under 59.5 and need access to the money. RMDs are based on your life expectancy using the IRS Single Life Expectancy Table.

Option 3: 10-Year Rule

Spouses can elect the 10-year rule if it suits their situation, though this is rarely the best choice since the stretch option is available.

Option 4: Lump Sum Distribution

Withdraw everything at once. This triggers immediate taxation on the full amount and is almost never advisable for large accounts. A $500,000 inherited traditional IRA withdrawn as a lump sum could result in a federal tax bill of $100,000 to $185,000 depending on your other income.

Eligible Designated Beneficiaries (EDBs)

Five categories of beneficiaries are exempt from the 10-year rule and can still stretch distributions over their life expectancy:

• Surviving spouses: As described above, they have the most options of any beneficiary.
• Minor children of the account owner: The stretch applies until the child reaches the age of majority (21 in most states for this purpose). After reaching 21, the 10-year clock starts. Note: this applies only to the owner's own children, not grandchildren, nieces, or nephews.
• Disabled individuals: As defined by IRS Section 72(m)(7), a person who is unable to engage in any substantial gainful activity due to a physical or mental condition that is expected to be of long, continued, or indefinite duration.
• Chronically ill individuals: Unable to perform at least 2 of 6 activities of daily living for at least 90 days, or requiring substantial supervision due to cognitive impairment, as certified by a licensed healthcare practitioner.
• Individuals not more than 10 years younger than the deceased: This typically includes siblings, partners, or friends who are close in age to the deceased owner.

If you qualify as an EDB, you can take distributions based on your own life expectancy, recalculated annually using the IRS Single Life Expectancy Table. This can spread distributions over 20, 30, or even 40+ years.

Inherited Roth IRA vs Traditional IRA

The type of account you inherit significantly affects your tax situation:

Inherited Traditional IRA or 401(k)

• All withdrawals are taxed as ordinary income at your current marginal tax rate.
• A $500,000 inherited IRA withdrawn over 10 years adds $50,000 per year to your taxable income, potentially pushing you into a higher tax bracket.
• Higher income from distributions can also trigger the 3.8% Net Investment Income Tax (NIIT) on your other investment income and increase your Medicare premiums through IRMAA surcharges.

Inherited Roth IRA

• Qualified withdrawals are completely tax-free, provided the original owner held the Roth for at least 5 years.
• The 10-year rule still applies to non-spouse beneficiaries, but since there is no tax on withdrawals, the optimal strategy is to leave the money in the Roth as long as possible (withdraw everything in year 10).
• Inherited Roth IRAs do require distributions (unlike Roth IRAs you own yourself, which have no RMDs during your lifetime).

If the original owner had both traditional and Roth accounts, the Roth is almost always more valuable to inherit because of the tax-free treatment.

Strategies to Minimize Taxes on Inherited Accounts

The 10-year rule creates a concentrated tax event for beneficiaries of large traditional IRAs. Here are strategies to minimize the impact:

1. Spread Distributions Evenly

Instead of waiting until year 10, take roughly equal distributions each year. For a $500,000 inherited IRA, withdrawing $50,000 per year keeps you in a lower tax bracket than withdrawing $500,000 in a single year. The tax savings can be $50,000 to $100,000+ depending on your other income.

2. Time Distributions to Low-Income Years

If you anticipate years with lower income (career change, sabbatical, early retirement, gap between jobs), take larger distributions in those years when your marginal tax rate is lower. This requires projecting your income over the full 10-year window.

3. Charitable Giving with Qualified Charitable Distributions (QCDs)

If you are 70.5 or older, you can direct up to $105,000 per year (2025 limit, adjusted annually for inflation) from an inherited IRA directly to a qualified charity. QCDs satisfy your RMD requirement and are excluded from taxable income entirely. This is one of the most powerful tax strategies for charitably inclined beneficiaries.

4. Offset with Deductions

Bunch deductible expenses (charitable donations, medical expenses, state and local taxes up to $10,000) in years when you take larger distributions. This can partially offset the additional income.

5. Convert Inherited Traditional to Roth (Spousal Rollover Only)

If you are a surviving spouse who rolled the inherited IRA into your own, you can convert some or all of it to a Roth IRA. You pay taxes on the converted amount now, but all future growth and withdrawals are tax-free. This is especially valuable if you are currently in a lower tax bracket than you expect to be in the future.

6. Use the Inherited Roth Strategy

If you inherit both traditional and Roth accounts, withdraw from the traditional account first (when you need income) and let the Roth grow tax-free for as long as possible within the 10-year window.

Required Minimum Distributions (RMDs) for Inherited Accounts

RMD rules for inherited accounts depend on when the original owner died, whether they had started RMDs, and your relationship to them:

The penalty for missing an RMD was reduced from 50% to 25% by SECURE Act 2.0, and further reduced to 10% if corrected within 2 years. Even at the reduced rate, the penalties are substantial, so staying on top of distribution requirements is critical.

Inherited 401(k) Specifics

Inherited 401(k)s follow the same general rules as inherited IRAs, but with some important differences:

• Plan rules apply: The 401(k) plan document may impose stricter distribution requirements than IRS rules allow. Some plans require full distribution within 5 years, regardless of the 10-year rule.
• Roll to inherited IRA: Non-spouse beneficiaries can roll an inherited 401(k) into an inherited IRA, which typically offers more investment options and more flexible distribution timing.
• NUA opportunity: If the 401(k) holds appreciated employer stock, Net Unrealized Appreciation (NUA) rules may allow the stock to be transferred to a taxable brokerage account and taxed at capital gains rates instead of ordinary income rates. This can save substantial taxes.
• No Roth conversion: You cannot convert an inherited 401(k) directly to a Roth IRA. Only spousal rollovers allow Roth conversion.
• Contact the plan administrator: The 401(k) plan administrator controls the process. Contact them as soon as possible after the account owner's death to understand your options and deadlines.

Common Mistakes to Avoid

• Taking a lump sum: Withdrawing the entire inherited account in one year can push you into the 37% federal tax bracket (income over $609,350 for single filers in 2025). Spreading distributions over 10 years can save tens of thousands in taxes.
• Waiting until year 10: While technically allowed (if no annual RMDs are required), withdrawing $500,000+ in a single year creates a massive tax bill. Plan ahead.
• Titling the account incorrectly: An inherited IRA must be titled as "[Deceased Owner], deceased, IRA FBO [Beneficiary Name], beneficiary." Incorrect titling can trigger an immediate taxable distribution.
• Missing the rollover deadline: Spousal rollovers must typically be completed within 60 days of receiving a distribution. Missing this deadline makes the distribution taxable and potentially subject to penalties.
• Forgetting state taxes: In addition to federal taxes, many states tax IRA distributions as income. States with no income tax (Florida, Texas, Nevada, etc.) provide a natural advantage.
• Not updating beneficiaries: If you inherit an IRA and then die without naming your own beneficiaries, the account may pass through your estate, losing favorable distribution options.

When to Get Professional Help

The rules around inherited retirement accounts are among the most complex in the tax code. Consider working with a tax professional or financial advisor if:

• The inherited account is worth more than $100,000.
• You are inheriting from someone who died after 2019 and before the IRS finalizes its regulations.
• You may qualify as an eligible designated beneficiary.
• You are considering a Roth conversion as a surviving spouse.
• The deceased had both traditional and Roth accounts.
• You are dealing with an inherited 401(k) with employer stock (NUA opportunity).
• You need to coordinate the inherited account with your own retirement planning and estate tax obligations.

A one-time consultation with a CPA or fee-only financial advisor typically costs $200 to $500 and can save you many times that amount in taxes.

Frequently Asked Questions

Related Resources

• Retirement Accounts After Death: What Happens Next
• Estate Tax Guide
• Social Security Survivors Benefits
• What Debts Are Forgiven at Death?
• Probate Process Guide
• State-by-State Guides