Retirement Tax Strategy
Converting a Traditional IRA to Roth After Age 72: Rules, Risks, and Strategy
Yes, you can convert a traditional IRA to a Roth IRA after age 72. But the rules are more complex than they are for younger investors, and the sequencing matters significantly. The RMD must come out first, conversions are fully taxable at ordinary income rates, and the interaction with Medicare surcharges and your estate plan requires careful analysis before you act.
The Short Answer
Can You Convert a Traditional IRA to a Roth After Age 72?
There is no age cutoff for Roth IRA conversions. Congress has never imposed an upper age limit, and the SECURE 2.0 Act of 2022 made no change to that rule. A 78-year-old with a traditional IRA may convert any portion of that account to a Roth IRA in any given tax year.
What does change after age 72 (now 73 under SECURE 2.0 for those born in 1951 or later, and 75 for those born in 1960 or later) is the required minimum distribution obligation. The RMD interaction is what makes post-72 conversions more nuanced than the general guidance you will find on most financial websites, and why the strategy deserves focused analysis at this stage of life.
This page focuses specifically on the mechanics and planning considerations for retirees who are already subject to RMDs and are evaluating whether a partial or full Roth conversion still makes sense for their situation.
2026 RMD Age Reference
Born 1950 or Earlier
RMDs required starting at age 72 (pre-SECURE 2.0 rules apply)
Born 1951 to 1959
RMDs required starting at age 73 under SECURE 2.0
Born 1960 or Later
RMDs required starting at age 75 under SECURE 2.0
Note: Roth IRAs you own are not subject to RMDs during your lifetime. Inherited Roth IRAs may be subject to separate rules. See our Inherited IRA Rules guide for details.
The Critical Sequence
The Rule Every Post-72 Converter Must Know: RMD First
This is the single most commonly misunderstood rule in post-72 Roth conversion planning, and getting the sequence wrong creates a tax problem that cannot be undone in the same year.
Satisfy Your RMD First
The IRS requires that the RMD for a given tax year be distributed before any portion of the account can be converted to a Roth IRA. According to IRS rules, RMD amounts are ineligible for rollover or conversion. If you attempt to include an RMD in a conversion, the IRS treats the RMD as a failed rollover, creating a taxable distribution and potential excise tax.
Then Convert What Remains
Once the RMD has been distributed, you may convert any portion of the remaining traditional IRA balance to a Roth IRA. There is no dollar cap on the conversion amount, but every dollar converted is added to your ordinary income for the year. For affluent retirees, this can push income into higher marginal brackets and trigger Medicare IRMAA surcharges.
Plan the Conversion Size Carefully
Most retirees subject to RMDs benefit from partial, multi-year conversions rather than a single large conversion. The goal is typically to convert enough to fill the current tax bracket without triggering a bracket jump, IRMAA surcharge, or additional Net Investment Income Tax exposure. The right amount varies significantly by individual tax situation.
Tax Complexity at High Income
What Roth Conversions Actually Cost After Age 72
For affluent retirees, the all-in cost of a Roth conversion is rarely just the marginal income tax rate. Several additional federal-level taxes can stack on top of ordinary income from a conversion, and understanding the cumulative impact is essential before committing to a conversion amount.
Converting $100,000 from a traditional IRA may appear to cost 22% or 24% in federal tax. For a retiree with significant Social Security benefits, investment income, and existing RMDs, that same $100,000 conversion can effectively cost considerably more once IRMAA surcharges and the Social Security income inclusion effect are factored in. The actual tax impact depends heavily on the individual's full income picture for the year.
This is why coordinated planning, not rule-of-thumb conversion strategies, is the appropriate approach at this stage. See our guide on Roth conversion strategy after retirement for a deeper look at how to structure this planning.
Federal Ordinary Income Tax
Conversion amounts are added to gross income and taxed at your marginal federal rate. In 2026, the top marginal rate is 37% for income above $626,350 (single) or $751,600 (married filing jointly), per IRS guidance.
Medicare IRMAA Surcharges
Medicare Part B and Part D premiums are income-adjusted using a two-year lookback. A large Roth conversion in 2026 may increase 2028 Medicare premiums by thousands of dollars annually, depending on your MAGI tier. IRMAA thresholds are subject to annual adjustment by CMS.
Social Security Benefit Taxation
Adding conversion income to your MAGI may cause a larger portion of Social Security benefits to become taxable. Up to 85% of benefits can be included in gross income once combined income exceeds certain thresholds, effectively increasing the marginal cost of each converted dollar.
Net Investment Income Tax (NIIT)
While Roth conversion income itself is not subject to the 3.8% NIIT, a large conversion can push other investment income above the threshold, causing capital gains, dividends, and passive income to become subject to the surtax. The interaction requires analysis of the full income stack.
Pennsylvania Residents
PA State Income Tax Treatment of Roth Conversions
Pennsylvania has a distinct state income tax structure that creates a meaningful consideration for Roth conversions that most national financial resources do not address.
Pennsylvania exempts traditional IRA distributions from state income tax for residents age 59.5 and older. That exemption applies to ordinary IRA withdrawals. However, the PA Department of Revenue has historically taken the position that a Roth conversion constitutes a taxable distribution subject to Pennsylvania's flat 3.07% personal income tax rate, rather than qualifying for the retirement income exemption available to older residents.
This means a Pennsylvania retiree age 72 or older may owe Pennsylvania income tax on conversion amounts that a neighbor in Ohio, for example, would not. The 3.07% state rate adds to the all-in cost and should be incorporated into the break-even analysis for any conversion. Given the nuances around how Pennsylvania classifies retirement income, working with a tax professional familiar with PA rules is particularly important before executing a conversion.
Pennsylvania does not have its own estate or inheritance tax exemption equivalent to the federal estate tax exemption, but it does impose a PA Inheritance Tax at rates varying by heir relationship. Roth assets passed to heirs may still be subject to PA Inheritance Tax, though the income tax treatment of inherited Roth IRAs for PA beneficiaries is generally more favorable than inherited traditional IRAs. These nuances are worth addressing in estate planning conversations.
PA vs. Federal Tax Treatment
| Tax Consideration | Federal | Pennsylvania |
|---|---|---|
| IRA withdrawals after 59.5 | Taxable (ordinary income) | Exempt from PA income tax |
| Roth conversion amounts | Taxable (ordinary income) | Generally taxable at 3.07% |
| Roth IRA qualified distributions | Tax-free | Tax-free |
| RMD amounts | Taxable (ordinary income) | Exempt from PA income tax after 59.5 |
PA tax treatment of Roth conversions reflects the Department of Revenue's longstanding position. Consult a qualified tax advisor for guidance specific to your filing situation. Tax law may change.
Estate Planning Angle
Why Affluent Retirees Convert for Their Heirs, Not for Themselves
For many retirees with substantial IRA assets, the most compelling case for a Roth conversion after age 72 is not personal tax savings. It is the impact on the next generation.
The 10-Year Rule and Inherited Traditional IRAs
Under SECURE 2.0 and IRS regulations, most non-spouse beneficiaries must fully distribute an inherited traditional IRA within 10 years of the original owner's death. For a beneficiary in their peak earning years, receiving large mandatory distributions from an inherited traditional IRA can push taxable income significantly higher over that decade, compounding the tax burden in years when they are least able to absorb it efficiently.
Inherited Roth IRAs and the 10-Year Window
Non-spouse heirs of Roth IRAs are also subject to the 10-year distribution rule. However, qualified distributions from an inherited Roth IRA are income-tax-free to the beneficiary (provided the Roth account was held for at least five years before the original owner's death). The heir still receives the assets, but without the income tax burden that accompanies an inherited traditional IRA. This is a meaningful distinction for families with significant IRA wealth.
Tax Rate Arbitrage Across Generations
If a retiree converts at a 22% or 24% marginal rate today, and the beneficiary would otherwise receive those same dollars at a 32% or 37% rate during their peak earning years, the conversion may produce meaningful multi-generational tax savings. The analysis is most compelling when the retiree's current tax rate is materially lower than the expected rate the beneficiary would pay on distributions. Individual outcomes depend on current and future tax law.
Strategic Interaction
QCDs and Roth Conversions: Using Both Strategically
Qualified Charitable Distributions (QCDs) allow IRA owners age 70.5 and older to transfer up to $105,000 per year (indexed for inflation as of 2026, per IRS guidance) directly from a traditional IRA to a qualified charity. The amount transferred counts toward the RMD for the year but is excluded from taxable income. QCDs are one of the most tax-efficient charitable giving strategies available to retirees.
The interaction between QCDs and Roth conversions requires attention to sequencing and intent. A QCD can satisfy part or all of your annual RMD, which in turn may allow you to convert additional IRA assets to Roth without first distributing as large an RMD amount. The key: the QCD must be distributed directly to the charity from the IRA custodian, and cannot first be received by the account holder.
For charitably inclined retirees who are also considering Roth conversions, coordinating QCDs, RMDs, and conversion amounts in the same tax year is a planning exercise that can produce meaningful tax efficiency. The interaction is not automatic and requires deliberate execution.
QCD Planning Considerations for 2026
When Should You Not Do a Roth Conversion After 72?
A conversion is generally less advisable when: (1) the current-year tax cost is likely higher than the expected future tax cost to the heir; (2) the conversion would trigger an IRMAA bracket increase that materially erodes the benefit; (3) the retiree has a shortened planning horizon that reduces the time for tax-free Roth growth to compound; or (4) the estate is unlikely to generate significant income tax liability for heirs in any scenario. Every situation is different.
Decision Framework
How to Evaluate Whether a Post-72 Roth Conversion Makes Sense
The decision is not binary. It requires weighing multiple variables against each other, often across a multi-year planning window.
Project Your Current vs. Expected Future Tax Rate
Compare the marginal rate at which you would convert today against the rate your estate or beneficiaries would likely pay upon inheriting the assets. Factor in potential changes to federal tax law, particularly the scheduled TCJA sunset provisions which, unless extended by Congress, may increase rates after 2025. The present tax certainty vs. future tax uncertainty trade-off is a core consideration.
Map the IRMAA Thresholds for Your Conversion Amount
Medicare IRMAA surcharges apply at specific MAGI thresholds and are tiered. A conversion of $50,000 may sit comfortably within your current IRMAA tier, while a conversion of $80,000 could push you into the next bracket, adding thousands of dollars in annual Medicare premiums two years later. Model the specific dollar breakpoints before choosing a conversion amount.
Assess the Five-Year Holding Period
Each new Roth conversion starts a five-year clock for that converted amount to be withdrawn penalty-free. While there is no early withdrawal penalty after age 59.5, the five-year rule still applies to the earnings on converted amounts if those earnings are withdrawn before the five years elapse. For estate planning purposes, however, the account owner's five-year clock does not restart for an inherited Roth account, provided the original account was open for at least five years.
Account for Pennsylvania's State Tax Treatment
For PA residents, add 3.07% to the conversion cost on the state side (subject to the caveat about PA's treatment noted above). This is particularly important when the break-even analysis is already marginal. In some cases, a conversion that appears modestly favorable at the federal level may be less compelling when PA state tax is included in the total cost calculation.
Consider Paying Conversion Taxes from Non-IRA Assets
The math on a Roth conversion is generally most favorable when the tax liability generated by the conversion is paid from existing taxable accounts rather than from the IRA itself. Withholding taxes from the converted amount effectively reduces the balance being converted to Roth and shortens the break-even horizon. Paying taxes from outside assets preserves more tax-advantaged dollars.