Inherited IRA Rules Prior to 2020: Stretch Method, RMDs, and Spousal Options

If you inherited an IRA from someone who died on or before December 31, 2019, the inherited IRA rules before 2020 still govern your account. That means the stretch method, life expectancy-based required minimum distributions, and the older beneficiary options remain available to you. The SECURE Act’s 10-year depletion rule does not apply retroactively, because the framework that controls your account is fixed by the original owner’s date of death.¹

The Stretch Method

Under 26 U.S.C. § 401(a)(9)(B)(iii), a designated beneficiary named directly on the account can take withdrawals spread across their own life expectancy rather than emptying the account quickly.² A 30-year-old who inherited an IRA in this window can take small annual distributions over roughly 50 years, leaving the bulk of the account invested that entire time.

Distributions from an inherited traditional IRA count as ordinary income.¹ Taking a $500,000 inheritance as a lump sum can push you into a much higher bracket for the year, while spreading it over decades keeps each year’s taxable amount low. The uninvested portion continues compounding without annual capital gains taxes eating into the balance.

Calculating Your Required Minimum Distribution

The withdrawal schedule is not discretionary. Each year, a minimum amount has to come out. Take the account balance as of December 31 of the prior year and divide it by a life expectancy factor from the Single Life Expectancy Table (Table I) in IRS Publication 590-B.³

In your first distribution year, which is the calendar year after the owner’s death, look up your age in the table to find your initial divisor. Each year after that, subtract one from that divisor.⁴ If your initial life expectancy factor was 40.0 at age 25, the next year it becomes 39.0, then 38.0. This subtraction method guarantees the account is fully depleted by the end of your statistical lifespan. The required amount is a floor, not a ceiling. You can always withdraw more, but never less.

Options for a Surviving Spouse

Surviving spouses have the most flexibility of any beneficiary type, with two fundamentally different paths.

Spousal Rollover

You can roll the inherited funds into your own IRA under 26 U.S.C. § 408(d)(3), effectively becoming the account owner.⁵ Once rolled over, the account follows all the normal IRA rules: no required distributions until you reach the required beginning age of 70½ that applied at the time, full control over investment choices, and the ability to name new beneficiaries.

Remaining a Beneficiary

The rollover carries a catch for younger spouses. If you are under 59½, roll the funds into your own IRA, and then need money, any withdrawal triggers the standard 10% early withdrawal penalty. Keeping the account titled as an inherited IRA avoids that penalty entirely.

Staying as a beneficiary also offers a timing advantage. Under 26 U.S.C. § 401(a)(9)(B)(iv), if the original owner died before reaching the required beginning date, you can delay starting distributions until the year the deceased would have turned 70½.² A common approach is to keep inherited IRA status during the years before 59½ for penalty-free access, then roll the remaining balance into a personal IRA once the penalty no longer applies.

When the Five-Year Rule Applies Instead

If the account owner died before the required beginning date and no individual was named as a designated beneficiary, a much faster clock starts. Under 26 U.S.C. § 401(a)(9)(B)(ii), the entire account has to be emptied within five years of the owner’s death.² No annual distributions are required during those five years, so you can withdraw on any schedule you want, but the balance has to reach zero by December 31 of the fifth year following death.¹

This most commonly kicks in when the estate is named as beneficiary, when no beneficiary designation was filed, or when the paperwork named a charity or other entity that does not qualify as a designated beneficiary under the tax code.

When the Owner Died After the Required Beginning Date

The rules shift when the owner had already started their own required distributions before dying. With a designated beneficiary, you still use the stretch method described above. Without one, the five-year rule does not apply. The statute instead requires that distributions continue “at least as rapidly” as the method the owner was already using.² In practice, you calculate RMDs using the deceased owner’s remaining life expectancy, subtracting one each year. This is sometimes called the “ghost life expectancy” method.

The owner’s remaining life expectancy is almost always shorter than a younger beneficiary’s, meaning larger annual withdrawals and faster depletion. It usually still stretches distributions over a decade or more, so it beats the five-year rule for most beneficiaries.

Trusts and Multiple Beneficiaries

Naming a trust as the IRA beneficiary was common for estate planning, particularly for minors, creditor concerns, or spending controls. A trust can qualify for stretch treatment through the “look-through” or “see-through” rules, but it has to meet four specific requirements under Treasury regulations:

The trust is valid under state law, or would be valid if it had assets.
The trust becomes irrevocable no later than the owner’s death.
The individual beneficiaries are identifiable from the trust document.
The trustee provides either a list of all trust beneficiaries or a copy of the trust instrument to the IRA custodian.⁶

Meet all four, and the IRS looks through the trust to its individual beneficiaries and uses the oldest beneficiary’s life expectancy for RMD calculations. Miss any requirement, and the trust is treated as having no designated beneficiary, triggering the five-year rule or the ghost life expectancy method depending on when the owner died. The beneficiary list has to be finalized by September 30 of the year after the owner’s death, and the trust documentation has to reach the IRA custodian by October 31 of that same year.⁶

When the original owner named more than one person as beneficiary on the same IRA, the default rule uses the oldest beneficiary’s life expectancy for everyone. A 60-year-old sibling and a 25-year-old grandchild sharing the same account are both stuck with the 60-year-old’s shorter life expectancy, wiping out most of the stretch benefit for the younger beneficiary. The fix is to split the account into separate inherited IRAs, one per beneficiary, by December 31 of the year following the owner’s death. Once separated, each beneficiary uses their own life expectancy. Any beneficiary who disclaims their share or withdraws their entire portion before September 30 of the year after death is removed from the beneficiary pool, which can improve the remaining beneficiaries’ calculations.

Inherited Roth IRAs

Roth IRAs follow the same structural rules for beneficiaries as traditional IRAs. A designated beneficiary can use the stretch method, and the five-year rule applies in the same circumstances.¹ The critical difference is taxation. Withdrawals of contributions from an inherited Roth are always tax-free. Withdrawals of earnings are also tax-free as long as the original Roth account had been open for at least five years. If the account was less than five years old at the owner’s death, earnings pulled out before the five-year mark are taxable.

One quirk trips people up: even though Roth IRA owners themselves are never required to take distributions during their lifetime, beneficiaries of inherited Roth IRAs are subject to RMDs. Missing them carries the same penalties as missing a traditional IRA distribution.

The Penalty for Missing an RMD

Under 26 U.S.C. § 4974, the excise tax on a missed RMD was 50% of the shortfall between what you were required to withdraw and what you actually took out.⁷ If your RMD was $10,000 and you withdrew nothing, you owed $5,000 in excise tax on top of the income tax still due on the eventual distribution. The IRS can waive the penalty if you show reasonable cause and take corrective action, but requesting a waiver means filing Form 5329.⁸

For inherited IRAs still governed by pre-2020 rules, SECURE 2.0 later reduced the standard penalty from 50% to 25%, with a further reduction to 10% if the missed distribution is corrected within two years. That lower rate applies to penalties assessed after 2022, even on accounts governed by the old distribution rules.

What Happens to a Successor Beneficiary

The grandfathering is tied to the original owner’s date of death, not yours. If you inherited a stretch IRA before 2020 and then die, the person who inherits from you may be subject to different rules depending on when your death occurs. The original grandfathering protects the first beneficiary, but the chain does not extend indefinitely. If you are still managing a pre-2020 inherited IRA, keep careful records of the original owner’s date of death, since that single date determines which set of rules applies for the life of the account.

1
Internal Revenue Service. Retirement Topics – Beneficiary
2
Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
3
Internal Revenue Service. Publication 590-B – Distributions from Individual Retirement Arrangements (IRAs)
4
Internal Revenue Service. Required Minimum Distributions for IRA Beneficiaries
5
Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts
6
eCFR. 26 CFR 1.401(a)(9)-4 – Determination of the Designated Beneficiary
7
Office of the Law Revision Counsel. 26 USC 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans
8
Internal Revenue Service. Correcting Required Minimum Distribution Failures