Inherited Roth IRA: Tax Rules, 10-Year Rule, and How to Maximize Tax-Free Growth

When Kevin inherited his father's Roth IRA, his first instinct was: "Tax-free money, take it all now."

He didn't. His advisor explained something that changed his approach entirely.

"That $180,000 is tax-free whether you take it today or in year 10. But if you leave it invested for 10 years at 7%, it becomes approximately $354,000 — still tax-free. Taking it early means giving up $174,000 in tax-free growth."

Kevin left it invested for nine years. In year 10, he took the full distribution. No income tax. No complications.

That's the optimal strategy for most inherited Roth IRA beneficiaries — and most people don't know it.

Why Inherited Roth IRAs Are Different From Inherited Traditional IRAs

When you inherit a traditional IRA, every distribution is taxable ordinary income. The 10-year rule creates tax planning urgency — large distributions in high-income years can cost you significantly.

When you inherit a Roth IRA, qualified distributions are tax-free. This changes the calculus entirely.

There's no tax cost to deferring. There's no tax cost to taking a large distribution in year 10. The only question is: how do you maximize the account's tax-free growth potential during the 10-year window?

The 5-Year Rule: When Distributions Are Truly Tax-Free

For inherited Roth IRA distributions to be tax-free, the "5-year rule" must be satisfied.

The 5-year rule for inherited Roth IRAs:

• The Roth IRA must have been open for at least 5 years before distributions
• The 5-year clock starts on January 1 of the year the original owner made their first Roth IRA contribution — to any Roth IRA
• If the original owner had a Roth IRA for 5+ years, all distributions are immediately tax-free to the beneficiary

Example:

• Father opened his first Roth IRA in 2010
• He died in 2025
• The Roth IRA has been open 15 years
• 5-year rule is satisfied — all distributions to the beneficiary are tax-free immediately

What if the 5-year rule isn't satisfied?

If the original owner's Roth IRA was relatively new (opened less than 5 years before their death), distributions of contributions are still tax-free (they were already taxed). Only distributions of earnings are taxable — and only until the 5-year mark is reached.

In most inheritance situations, the original owner had their Roth IRA for many years. This is rarely a problem in practice. But if you inherited a Roth IRA opened within the last few years, verify the timeline before assuming all distributions are tax-free.

The 10-Year Rule for Inherited Roth IRAs

Like inherited traditional IRAs, most non-spouse beneficiaries who inherit a Roth IRA from someone who died after 2019 must fully distribute the account within 10 years.

The key difference from traditional IRA:

For a traditional IRA, if the original owner had reached their Required Beginning Date (i.e., had started RMDs), the beneficiary must take annual distributions throughout the 10-year period.

For a Roth IRA, the original owner had no RMDs during their lifetime (Roth IRAs are not subject to RMDs for the original owner). This means the original owner had no "Required Beginning Date" — and therefore the annual distribution requirement generally does not apply to inherited Roth IRA beneficiaries.

The result: for an inherited Roth IRA, you simply need to empty the account by December 31 of the 10th year. No annual distributions required.

The Optimal Distribution Strategy

Since distributions are tax-free, the strategy is simple: delay as long as possible to maximize tax-free compounding.

Growth illustration (assumed 7% annual return):

The $174,000 difference is entirely tax-free. The beneficiary who waits captures $174,000 more without any additional tax cost.

Practical considerations:

• Can you afford to leave the money invested? If you need the funds, take them.
• What is the account invested in? Leaving money in a low-yield money market for 10 years is less compelling.
• Do you expect a significant income tax increase? With Roth distributions, this is irrelevant — there's no tax to worry about.

Spouse Beneficiaries: Different Rules Apply

Surviving spouses have special options not available to other beneficiaries:

Option 1: Roll into own Roth IRA Treat the inherited Roth IRA as your own. No 10-year rule. No RMDs ever (Roth IRAs have no lifetime RMDs). The money continues to grow tax-free on your own timeline.

Option 2: Keep as inherited Roth IRA Maintain it as an inherited account. If you need distributions before you turn 59½, this option allows penalty-free access (early withdrawal penalty from your own Roth IRA is not applicable to distributions from an inherited IRA).

Most surviving spouses roll to their own Roth IRA — but if you're young and might need the funds before 59½, keeping it as inherited can provide useful flexibility.

Eligible Designated Beneficiaries: Stretch Still Available

Certain beneficiaries (minor children, disabled individuals, chronically ill individuals, those within 10 years of the deceased's age) can still "stretch" distributions over their lifetime rather than following the 10-year rule.

For minor children of the deceased, the stretch period continues until they reach the age of majority, after which the 10-year rule kicks in.

Tax Planning Integration

For the beneficiary who holds a large inherited Roth IRA alongside other taxable income, one relevant consideration: even though Roth distributions are tax-free, they are generally not counted in MAGI. This means they don't trigger IRMAA, don't affect Social Security taxation thresholds, and don't push capital gains into higher rate brackets.

This makes the Roth IRA year-10 distribution essentially "free" from a tax stack perspective — unlike a large traditional IRA distribution, which creates cascading income effects.

Inheriting a Roth IRA is a meaningful financial gift. Use the full 10-year window. Let the account compound. Take the tax-free distribution when it's required.

Connect with a tax-focused retirement advisor to integrate your inherited Roth IRA strategy into your overall financial plan.