Roth Conversions · 12 min read
The Two Roth Five-Year Clocks: What Each One Governs and When It Stops Mattering
Roth IRAs run two separate five-year clocks. The first starts January 1 of the tax year of a person’s first Roth IRA contribution or conversion, never resets, and, together with age 59½, makes earnings tax-free. The second starts with each conversion and governs only the 10 percent penalty on converted dollars, a penalty that ends at 59½.
“The Roth five-year rule” is really two rules. One decides whether investment growth inside a Roth IRA comes out tax-free; the other decides whether converted dollars withdrawn before age 59½ carry a 10 percent additional tax. They start on different dates, attach to different money, and stop mattering at different times. Once the two are separated, most households can see quickly whether either one touches a withdrawal they are planning.
What follows is educational. The treatment of any specific withdrawal should be confirmed with a tax professional.
What the Five-Year Question Is Really Asking
A question about the five-year rule is almost always a question about a particular withdrawal: will these dollars be taxed, penalized, or neither? The answer depends less on the calendar than on which dollars the withdrawal is deemed to contain. For tax purposes, a Roth IRA is not one pool of money. It can hold three layers, and each follows its own rule.
| Layer | Where it came from | Clock attached | At stake if the tests are not met |
|---|---|---|---|
| Regular contributions | After-tax dollars deposited directly | None | Nothing; available tax-free and penalty-free at any age |
| Converted dollars | Pre-tax IRA or plan money, taxed in the year of conversion | One per conversion | The 10 percent additional tax, and only under 59½ |
| Earnings | Growth on everything above | One per person | Income tax, plus the 10 percent additional tax under 59½ unless an exception applies |
The IRS ordering rules, covered below, decide which layer a withdrawal comes from. The clocks and age 59½ decide what that layer costs.
The Earnings Clock: One Per Person, for Tax-Free Growth
Earnings leave a Roth IRA tax-free only in a qualified distribution, and the statute sets two tests that must both be met. (26 U.S.C. §408A(d)(2); IRS Publication 590-B)
- A time test. The distribution comes after a five-taxable-year period that begins with the first year for which the owner made a contribution to any Roth IRA.
- A triggering event. The distribution is made on or after age 59½, because of disability, to a beneficiary or the estate after the owner’s death, or for a first-home purchase, subject to a $10,000 lifetime limit.
Treasury regulations spell out how the time test is measured. (26 CFR §1.408A-6, Q&A-2)
- It starts on January 1 of a tax year. The period opens with the tax year of the first regular contribution, or of the first conversion if that came earlier. A deposit made in April 2027 for tax year 2026 starts the clock on January 1, 2026 and satisfies it on January 1, 2031, less than four years after the money went in.
- A conversion counts only in the year it happens. Unlike a contribution, it cannot be credited to the prior tax year: a conversion made February 25, 2025 starts its period January 1, 2025. (IRS Publication 590-B)
- One clock covers every Roth IRA the person owns. Opening another account, changing custodians, or converting again does not restart it.
- It belongs to the individual. Each spouse runs a separate clock; one spouse’s long Roth history does not season the other’s first Roth IRA.
A third clock inside workplace plans
Roth 401(k), 403(b) and governmental 457(b) accounts run their own five-year period, separately for each plan. (26 CFR §1.402A-1, Q&A-4) When that money rolls into a Roth IRA, the plan’s clock stays behind: the IRA’s period runs from the owner’s first Roth IRA contribution year or the rollover year, whichever is earlier. (26 CFR §1.408A-10, Q&A-4)
The effect is often smaller than it sounds. If the plan distribution was itself qualified, the entire rollover is treated as a regular contribution to the Roth IRA, so only growth after the rollover waits on the IRA’s clock. If it was not, only the contribution portion counts as basis. (26 CFR §1.408A-10, Q&A-3) Our guide to Roth 401(k)s without lifetime RMDs covers the plan side.
The Conversion Clock: One Per Conversion, for the Penalty
Every conversion from a traditional IRA, and every taxable rollover from an employer plan directly into a Roth IRA, starts its own five-year period on January 1 of the year it occurs. (IRS Publication 590-B) It has no bearing on income tax, which was settled in the conversion year. It decides only whether converted dollars withdrawn early carry the 10 percent additional tax.
- Only the taxable part is exposed. The additional tax reaches only the portion of a conversion that was included in income, not converted after-tax basis. (26 CFR §1.408A-6, Q&A-5)
- The usual exceptions still apply. Reaching 59½ is the broadest; disability and substantially equal periodic payments are among the others.
- Each conversion is tracked on its own. Three years of conversions means three periods, each ending on a different December 31.
The rule closes an obvious gap: without it, anyone under 59½ could convert and withdraw the next day, sidestepping the penalty on a direct IRA withdrawal.
In practice, age often ends the clock before time does. A conversion’s period runs through December 31 of the fourth year after the conversion year. For a conversion made in or after the calendar year a person turns 56, 59½ always arrives before that date. At 55 it depends on the birthday; earlier than that, the clock decides. The conversion clock is chiefly a concern for early retirees spending converted dollars before 59½.
The earnings clock runs once per person and decides whether growth is taxed. The conversion clock runs once per conversion, decides only the 10 percent additional tax, and stops mattering at 59½.
Which Dollars Come Out First
The ordering rules are the main reason the clocks bind less often than people expect. Distributions come from three categories in a fixed sequence, each exhausted before the next: (26 CFR §1.408A-6; IRS Publication 590-B, ordering rules)
- Regular contributions.
- Conversion and rollover contributions, oldest year first, and within each year the taxable portion before any nontaxable portion.
- Earnings.
All of a person’s Roth IRAs count as one for this purpose, and the year’s distributions are added together and sourced as of year-end, so the choice of account does not change the result.
The earnings clock therefore matters only after every contributed and converted dollar is gone, and the oldest conversions, the ones nearest the end of their periods, leave first. Put together, the rules sort into three situations:
| Situation at withdrawal | Regular contributions | Converted dollars | Earnings |
|---|---|---|---|
| 59½ or older; first Roth IRA funded five or more tax years ago | Tax- and penalty-free | Tax- and penalty-free | Tax-free (qualified) |
| 59½ or older; first Roth IRA funded within the last five tax years | Tax- and penalty-free | Tax- and penalty-free | Taxable as income; no penalty |
| Under 59½ | Tax- and penalty-free | 10% on the taxable portion if inside that conversion’s five years; free once it has run | Taxable, plus 10% unless an exception applies |
A Hypothetical Household, Worked Through
This illustration is hypothetical and simplified. It is not based on any client, ignores market movement, and is not a recommendation for any household.
Consider a married couple in 2026. The younger spouse turns 55 in January and stopped working in 2025. The older spouse turns 63 this year and is retiring. They file jointly.
The younger spouse: bridging to 59½
This spouse has made $50,000 of regular Roth IRA contributions since tax year 2014, and the account has grown by $45,000. The earnings clock began January 1, 2014 and was satisfied at the end of 2018. Pre-tax IRA money is converted in two steps, $60,000 in 2026 and $60,000 in 2027, taxed in those years. This spouse reaches 59½ in July 2030.
In 2028, at 57, the household wants $80,000 from this Roth IRA for living costs. The ordering rules source it as follows.
| Layer, in withdrawal order | Balance | Status in 2028 | Withdrawn | Additional tax |
|---|---|---|---|---|
| Regular contributions | $50,000 | No clock | $50,000 | $0 |
| 2026 conversion | $60,000 | Inside its period, which ends December 31, 2030 | $30,000 | 10% × $30,000 = $3,000 |
| 2027 conversion | $60,000 | Inside its period, which ends December 31, 2031 | $0 | $0 |
| Earnings | $45,000 | Clock satisfied, but owner under 59½ | $0 | $0 |
| Total | $215,000 | $80,000 | $3,000 |
No income tax is due, because the converted dollars were taxed in 2026. The $3,000 is the conversion clock at work, reported on Form 5329 for 2028. Two changes would remove it.
- Change the source. Taking $50,000 from the Roth IRA and $30,000 from a taxable account avoids the additional tax, though selling appreciated holdings may realize capital gains. Our guide to withdrawal sequencing covers that trade-off.
- Change the date. From July 2030, when this spouse reaches 59½, every dollar in the account comes out tax- and penalty-free. That is about five months before the 2026 conversion’s own period ends, and about eighteen months before the 2027 conversion’s.
The older spouse: a first Roth IRA at 63
This spouse has never owned a Roth IRA but has made Roth 401(k) contributions since 2019; the account holds $120,000, of which $90,000 is contributions. In 2026 the spouse converts $40,000 of a traditional IRA into a new Roth IRA, starting the earnings clock on January 1, 2026. It will be satisfied on January 1, 2031.
After retiring, the spouse rolls the Roth 401(k) into the same Roth IRA. The plan’s own five-year period ended in 2023 and the spouse is past 59½, so the distribution is qualified and the full $120,000 enters the Roth IRA as regular contributions.
At 63, the conversion clock is irrelevant. The first $120,000 + $40,000 = $160,000 withdrawn is tax-free and penalty-free whenever it is taken. Only earnings withdrawn before January 1, 2031 would be taxable, with no penalty at this age, and they are reached only after that $160,000 is gone. The clock restart that worries people about Roth 401(k) rollovers costs this spouse nothing. Had the plan distribution not been qualified, the $30,000 of plan growth would sit in the earnings layer until 2031.
Same household, same tax return, opposite exposure. The younger spouse’s $80,000 withdrawal carries $3,000 of additional tax; the older spouse could withdraw $160,000 with neither tax nor penalty.
How We Approach This in a Plan
We treat the five-year clocks as scheduling constraints inside a conversion plan, not as reasons to convert or to hold off. Whether a conversion is worth doing is a bracket question; the clocks decide when converted dollars can be spent.
- Taxes and conversion sizing. Each conversion is ordinary income in its year, and since 2018 a conversion cannot be recharacterized or undone. (IRS Publication 590-A) We size conversions against current and expected brackets; see Roth conversions: when they pay off.
- Income before 59½. For early retirees, we map which Roth layers are reachable each year and at what cost, alongside other penalty-free sources such as the rule of 55. The younger spouse above cannot use that exception, having left work in 2025, the year before turning 55.
- Medicare and Social Security. Conversion income raises modified adjusted gross income, and Medicare’s income-related premiums are generally set from the return filed two years earlier. (20 CFR §418.1135) The couple’s $100,000 of 2026 conversions will therefore help set the older spouse’s premiums for 2028, the year that spouse turns 65; see the IRMAA cliff. The same income counts toward how much Social Security is taxable. (IRS Tax Topic 423)
- Required distributions. Roth IRAs have no lifetime RMDs, and a required distribution cannot itself be converted. (IRS Publication 590-B; IRS Publication 590-A) Conversions therefore cluster in the window before required withdrawals, where an early first conversion also starts the earnings clock.
- Estate. The earnings clock keeps running after death, so heirs inherit the owner’s start date. Beneficiaries owe no 10 percent additional tax, though earnings withdrawn before the owner’s period would have ended are taxable. A surviving spouse who treats the account as his or her own meets the time test when the earlier of the two clocks, the decedent’s or the spouse’s, has run. (26 CFR §1.408A-6, Q&A-7) Payout deadlines for heirs are covered in our guide to the inherited IRA 10-year rule.
The result is a year-by-year map for each spouse: planned conversions, when each period ends, when 59½ arrives, and which layer funds each withdrawal. We revisit it as balances, tax law and spending change.
Questions Worth Answering Before You Decide
Before counting on Roth money for a specific need, we work through these questions with the household and its tax preparer:
- In what tax year did each spouse first fund a Roth IRA, by contribution or conversion, and do prior-year Forms 8606 and custodian statements confirm it?
- How much of each Roth IRA is contributions, conversions by year, and earnings, and which layer would a withdrawal before 59½ reach?
- For each past or planned conversion, when does its five-year period end, and does 59½ arrive first?
- Is Roth 401(k) money headed to a Roth IRA, does a Roth IRA already exist to receive it, and will the plan distribution be qualified?
- How does each conversion affect this year’s bracket, taxable Social Security, and Medicare premiums two years out?
- Who are the beneficiaries, and whose clock will they inherit?
What This Does Not Mean
- It does not mean converted money is taxed twice. Income tax on a conversion is paid once, in the conversion year. The conversion clock’s only consequence is the 10 percent additional tax, and only before 59½.
- It does not mean the account is locked. Regular contributions come out first and are available without tax or penalty at any age.
- It does not mean a missed clock costs the account. Tax or penalty applies only to the portion withdrawn from the affected layer, not to the balance.
- It is not personalized advice. How a specific withdrawal is sourced and reported belongs with a tax professional who can see the full account history.
Frequently Asked Questions
Q: What is the difference between the two Roth five-year rules?
The earnings rule runs once per person from the first Roth IRA funding and, with age 59½ or another qualifying event, makes earnings tax-free. The conversion rule runs separately for each conversion and governs only the 10 percent additional tax on converted dollars withdrawn before 59½.
Q: Does the conversion five-year rule still apply after 59½?
No. It enforces the 10 percent additional tax, which ends at 59½. Converted dollars can then be withdrawn without penalty even the year after converting; their income tax was paid at conversion.
Q: Does a new Roth IRA or another conversion restart the earnings clock?
No. Each person has one earnings clock covering every Roth IRA he or she owns. A new conversion starts only its own penalty clock.
Q: Does rolling a Roth 401(k) into a Roth IRA start a new clock?
The money takes the Roth IRA's clock, not the plan's; if no Roth IRA existed, a new clock starts with the rollover year. When the plan distribution was qualified, the whole rollover counts as contributions and can come out tax-free at any time.
Q: Do beneficiaries of an inherited Roth IRA face a five-year wait?
They inherit the owner's clock, which keeps running after death. No 10 percent additional tax applies, but earnings withdrawn before the owner's five years would have run are taxable. Contributions and conversions still come out first.
Q: In what order does money come out of a Roth IRA?
Regular contributions, then conversions oldest year first, then earnings, with all of a person's Roth IRAs treated as one. The only layer the earnings clock governs comes out last.
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The views and opinions expressed here are those of The Financial Sciences Company as of the publish date and are provided for informational and educational purposes only. They are not personalized investment, tax, or legal advice. The Financial Sciences Company, LLC is a registered investment adviser. Registration does not imply a certain level of skill or training. Additional information is available in our Form ADV at adviserinfo.sec.gov.
General educational information, current as of 2026. Figures and rules change. For guidance specific to your situation, speak with a qualified professional.