Does each Roth conversion start a new five-year clock?

For the penalty rule, yes, each conversion has its own clock starting January 1 of the year of the conversion, and it only matters if you are under 59½. For the earnings rule, no. That clock started with your first Roth IRA contribution or conversion and never restarts.

If I have never had a Roth IRA, when should I start?

This year, with any amount. The earnings clock starts January 1 of the year of the first dollar in, and a conversion counts. A small conversion now means a large conversion later already has its five years running.

Roth conversions · Rules

What is the five-year rule on Roth conversions?

By Jim Swiech, CPA · Updated September 5, 2026

Quick answer

There are two five-year rules, and retirees usually only need to worry about one of them. The first says that the taxable part of converted money taken out within five years of the conversion is hit with the 10% early-withdrawal penalty, but only if you are under 59½. Past 59½ that rule no longer applies.

The second says that Roth earnings come out tax-free only once five tax years have passed since you first funded any Roth IRA and you are 59½ or older. That clock runs once, from your first Roth, not from each conversion. If you have never had a Roth, a conversion starts it.

Clock one: the conversion clock

Each conversion gets its own five-year period, starting January 1 of the year you convert. If you withdraw the converted amount inside that period and you are under 59½, the taxable part of the conversion is subject to the 10% early-withdrawal penalty, the same penalty you would have paid pulling it from the traditional IRA. The point of the rule is to stop someone under 59½ from converting and withdrawing the next day to dodge the penalty. There is no income tax on that withdrawal, because you paid it when you converted. Once you are 59½ the penalty does not exist, so this clock stops mattering the day you reach that age, even on conversions done last year.

Clock two: the earnings clock

A withdrawal of Roth earnings is tax-free only when it is a qualified distribution, which requires two things at once: five tax years have passed since January 1 of the tax year of your first Roth IRA contribution (a contribution made by April for the prior year counts for that prior year) or your first conversion, and you are 59½ or older, disabled, deceased, or buying a first home. The clock is per person, not per account and not per conversion. A Roth opened in 2019 with a small contribution satisfied the clock for every Roth dollar that came after, including a large conversion in 2026. A conversion in 2026 by someone who has never had a Roth starts the clock at January 1, 2026, and earnings are tax-free from 2031, provided the age test is also met.

Which clock applies to which dollars, for a person 59½ or older.
Money coming out of the Roth	Tax	Penalty	Clock that matters
Regular contributions	None, ever	None, ever	None
Converted amounts	None (taxed at conversion)	None past 59½	Conversion clock, only under 59½
Earnings	None if qualified, otherwise ordinary income	None past 59½	Earnings clock: five years from first Roth plus age 59½

The ordering rule that makes this workable

The IRS treats every Roth withdrawal as coming out in a fixed order: regular contributions first, then conversions oldest to newest with the taxable part of each conversion before the nontaxable part, and earnings last. So a retiree who converted in 2026 and needs money in 2028 is not pulling earnings; they are pulling converted dollars, which are tax-free and, past 59½, penalty-free. Earnings sit at the bottom of the pile, and the earnings clock only bites if you dig all the way down before five years have passed.

What this means for a conversion plan

If you are 59½ or older and have had any Roth IRA for five tax years, neither clock changes anything about a conversion. Convert what the brackets allow and spend from the Roth whenever you need to. If you have never had a Roth, a first conversion, however small, this year starts the earnings clock at January 1 of this year, because a conversion counts as the first dollar in.

A few edge cases worth knowing. A Roth 401(k) rolled into a Roth IRA takes on the Roth IRA's clock, not the plan's, so a brand-new Roth IRA receiving an old Roth 401(k) starts from zero. An inherited Roth keeps the original owner's clock, so the heir's earnings are tax-free once the owner's five years are up. And the age test uses your age at the time of the withdrawal, so a conversion done at 57 is free of penalty for withdrawals at 59½ even though five years have not passed.

Not sure which clock applies to your Roth? Ask.

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Quick answers

What is the five-year rule on Roth conversions?: There are two. The taxable part of converted money withdrawn within five years of the conversion is subject to the 10% early-withdrawal penalty, but only if you are under 59½; past that age the rule does not apply. Separately, Roth earnings are tax-free only once five tax years have passed since you first funded any Roth IRA and you are 59½ or older. That second clock runs once, from your first Roth, not from each conversion.
Does each Roth conversion start a new five-year clock?: For the penalty rule, yes, each conversion has its own clock starting January 1 of the year of the conversion, and it only matters if you are under 59½. For the earnings rule, no. That clock started with your first Roth IRA contribution or conversion and never restarts.
If I have never had a Roth IRA, when should I start?: This year, with any amount. The earnings clock starts January 1 of the year of the first dollar in, and a conversion counts. A small conversion now means a large conversion later already has its five years running.

Updated September 5, 2026. Reviewed by Jim Swiech, CPA.

Educational and general in nature. Not tax, legal or investment advice, and not a recommendation to convert. Figures are 2026 federal amounts under the assumptions stated on this page; your return has more lines than any example. Go Beyond Tax is a brand of Swiech Consulting LLC.