A Roth conversion before RMDs means two different things depending on where you are. If you are already 73 or older, it means understanding the order: the required distribution comes first, every year, before any conversion. If you are not there yet, it means using the gap years while you still have room to convert on your own terms.
This guide covers both. The sequencing rule first, because getting it wrong is expensive, then the strategy that the rule points toward.
Can a Roth Conversion Satisfy Your RMD
No. A required minimum distribution cannot be converted, and a conversion does not count toward the amount you are required to withdraw.
The sequence is fixed once you reach RMD age:
- Calculate your total required distribution across all traditional IRAs for the year.
- Withdraw that full amount.
- Then convert whatever additional amount makes sense.
The reasoning is straightforward. A required distribution is the first money out of the account each year, and the tax code treats it that way. The dollars you convert are the ones that come after it.
Required distributions currently begin at 73 for those born between 1951 and 1959, and at 75 for anyone born in 1960 or later. Before you reach that age, none of this applies and you can convert whenever you choose.
What Happens if You Convert Before Taking Your RMD
The converted amount that should have been your distribution becomes an excess contribution to your Roth IRA, and excess contributions carry a 6% excise tax for every year they remain in the account.
The mistake is fixable if you catch it. Removing the excess amount by the filing deadline generally corrects the problem. Leave it in place and the 6% applies again the following year, and the year after that, until it is removed. The IRS sets out the required distribution rules and the correction procedure in Publication 590-B.
There is also the separate penalty for missing the distribution itself. Getting the order wrong can trigger both problems from a single transaction, which is why custodians and CPAs treat the sequence as non-negotiable rather than as a preference.
What a Roth Conversion Actually Does
A conversion moves money out of a pre-tax account and into a Roth IRA. You report the converted amount as income this year. From that point forward, the money grows tax-free.
Qualified Roth withdrawals never face income tax again. More importantly, a Roth IRA carries no required minimum distributions during your lifetime. You choose when to touch it, or whether to touch it at all.
Income limits never apply to conversions either. High earners who cannot contribute to a Roth directly can still convert freely.
Why the Gap Years Before RMDs Matter Most
Planners call the stretch between your last paycheck and your first required distribution the gap years, or the trough years. Your salary has stopped. Social Security may still be waiting. Your traditional IRA, however, keeps compounding toward a much larger tax bill.
Once required distributions begin, they land on top of every other income source you already receive. Picture a retiree with $1.5 million in a traditional IRA at 73. The IRS Uniform Lifetime Table applies a divisor of 26.5 at that age, producing a first-year distribution of about $56,600. That figure arrives on top of Social Security, pensions, and dividends, whether or not the money is needed.
The cost rarely stops at a higher bracket. Larger income also triggers IRMAA surcharges on Medicare premiums and pushes more of your Social Security benefit into taxable territory, as our guide, Is Social Security Taxed in Arizona, covers in detail. The account grows every year you wait, so each future distribution grows with it.
Converting during the gap years shrinks the balance that those future distributions are calculated from. That is the whole mechanism.
What Makes the 2026 Window Unusual
Federal Rates Finally Stopped Moving
The One Big Beautiful Bill Act made the 10% to 37% federal brackets permanent. For years, planners had to guess about a scheduled sunset. That guessing game has ended. The question now becomes how much to convert annually, not whether to convert at all.
A New Senior Deduction Opens Space
Filers age 65 and older can claim a $6,000 federal bonus deduction through 2028. Couples where both spouses qualify claim $12,000. This deduction stacks on top of the standard deduction and the existing age-based addition, and per the Tax Foundation it is available to itemizers as well, which the older senior add-on is not.
Additional deduction creates additional room in the lower brackets. Efficient conversions live in exactly that space.
The Senior Deduction Trap Nobody Mentions
That new deduction comes with a catch worth understanding. It shrinks as your income rises. Each qualifying person loses 6 cents of deduction for every dollar of MAGI above $75,000 single or $150,000 joint. It disappears entirely at $175,000 for a single filer and at $250,000 for a couple where both spouses qualify.
A conversion increases your MAGI dollar for dollar, so an oversized conversion can wipe out the deduction that made conversions attractive in the first place. Work an example. A Tucson couple, both 66, sits at $140,000 of MAGI and converts $60,000. That puts them at $200,000, which is $50,000 past the threshold. At 6%, each spouse loses $3,000 of deduction, so the household gives up $6,000 of the $12,000 it would otherwise have claimed.
Inside that phase-out range your true marginal rate climbs above your stated bracket, because every additional dollar is both taxed and shrinking a deduction at the same time. Sizing matters more than most retirees realize. Your CPA can pinpoint the exact break point on your return, and coordinated income planning then keeps the conversion, the deduction, and your Medicare exposure working together.
How Arizona Tilts the Math Toward Tucson Retirees
Three features of Arizona law strengthen the case locally.
- A flat 2.5% income tax. Brackets never creep, so a larger conversion carries no extra state penalty. Your state cost stays predictable.
- No state tax on Social Security. Your benefits stay out of the Arizona calculation, even during a conversion year.
- No estate or inheritance tax. Roth assets reach your heirs without state estate tax, and qualified distributions arrive income tax-free.
Now compare a retiree in a progressive-tax state. A six-figure conversion there climbs through several state brackets. Arizona charges the same flat rate on the first dollar and the last.
How Much Should You Convert in a Single Year
Fill your current federal bracket, then stop. A multi-year ladder beats one large conversion nearly every time. Spreading income across several years keeps you below bracket jumps, below IRMAA cliffs, and inside the senior deduction.
Four rules protect the strategy:
- Take your required distribution first after 73. The full distribution has to be satisfied before you convert anything extra, as covered above.
- Respect the two-year Medicare lookback. A 2026 conversion sets your 2028 Part B and Part D premiums, as our guide to Medicare premiums based on income explains.
- Pay the tax from outside savings. Covering the bill with IRA dollars shrinks the balance that compounds tax-free.
- Track each five-year clock. Every conversion starts its own period on earnings. Converted principal escapes the early withdrawal penalty after 59½.
Does It Make Sense to Convert While You Are Taking RMDs
Sometimes, and the answer turns on what you are solving for.
The case against is simple arithmetic. Your required distribution has already filled part of your bracket before the conversion starts, so every converted dollar sits on top of income you were forced to take. The conversion is more expensive at 75 than the identical conversion would have been at 68.
The case for usually has nothing to do with your own tax bracket. Three situations come up repeatedly:
- Your heirs are in higher brackets than you are. An inherited traditional IRA generally has to be emptied within ten years, and every dollar is ordinary income to the beneficiary. Paying the tax at your rate can cost the family less than paying it at theirs.
- You want to reduce future distributions. Shrinking the traditional balance now shrinks every distribution that follows, which compounds across a long retirement.
- A surviving spouse will eventually file single. The same income taxed at single-filer brackets is a meaningful step up, and conversions made while both spouses are living happen at joint rates.
None of that changes the sequence. The distribution still comes out first.
Frequently Asked Questions
Do Roth Conversions Count Toward Your RMD
No. Converting does not reduce or satisfy the amount you are required to withdraw. The distribution has to leave the account, and only amounts beyond it can be converted.
When Should You Not Do a Roth Conversion
When you would have to pay the tax from the IRA itself, when the conversion would push you through a bracket or an IRMAA threshold you cannot absorb, when you expect to be in a materially lower bracket later, or when you intend to leave the account to charity. A charity pays no income tax on a traditional IRA it inherits, so converting first spends money for nothing.
At What Age Do Roth Conversions Stop Making Sense
There is no cutoff age in the tax code. What changes with age is the math. After required distributions begin, conversions cost more because they stack on top of forced income, and a shorter remaining horizon leaves less time for tax-free growth to repay the tax you paid up front. Conversions late in life are usually made for the next generation rather than for the account owner.
Can You Undo a Roth Conversion
No. Recharacterizing a conversion back to a traditional IRA was eliminated for conversions made after 2017. Once the conversion is done, the tax is owed, which is the reason sizing it correctly before you act matters so much.
What Is the Biggest Roth Conversion Mistake
Converting a round number instead of a calculated one. Most costly conversion errors come from picking an amount that felt right and discovering afterward that it crossed a bracket, an IRMAA threshold, or the senior deduction phase-out. The second most common is paying the tax out of the IRA.
How We Coordinate Conversions at Global Investment Strategies
We have built income plans for Tucson families since 2009. A conversion never stands alone in that work. It touches Social Security timing, withdrawal order, Medicare premiums, and your legacy intentions at the same time.
We work alongside your CPA and attorney instead of replacing them. They prepare the returns and draft the documents. Our role keeps every decision pointing the same direction. Our retirement income planning page explains the full process.
Review Your 2026 Conversion Window
The window sits open right now, yet the conditions will shift. The senior deduction expires after 2028. Your personal gap years close the moment required distributions begin. Acting earlier simply leaves you more room to maneuver.
Families throughout Tucson, Oro Valley, Marana, and the Catalina Foothills revisit this question every fall. Request a private conversation and we will map your conversion options against your complete income picture.
Global Investment Strategies provides educational planning concepts and works alongside your qualified legal, tax, and financial professionals. This article is educational and is not individualized tax or financial advice. Figures described here reflect federal law and Arizona law as of the 2026 tax year, including provisions of the One Big Beautiful Bill Act scheduled to expire after 2028. Review any conversion with your CPA before acting.
