The roth conversion deferred compensation question is really a calendar question. Nonqualified deferred compensation (NQDC) lands as ordinary income on a 409A schedule you fixed years ago, so the low-cost years to convert an IRA or 401(k) are the income troughs after those payouts end, not the years a distribution is landing on top of everything else you earn.
Nonqualified deferred compensation is taxed as ordinary income on its elected 409A schedule and cannot be rolled or converted to a Roth IRA. Converting in a payout year stacks two ordinary-income sources and wastes low-bracket room. Many executives instead convert during the gap years after installments end and before Social Security and required minimum distributions begin, when other income is lowest.
Can you do a Roth conversion in a deferred comp payout year?
Yes, nothing prevents a Roth conversion in a year you receive a deferred comp payout, but it is usually an expensive year to do one. NQDC and a conversion are both ordinary income, so stacking them fills your lower brackets with the payout and taxes the conversion at your top rate, often 32% or 35%. The identical conversion in a gap year can be taxed at 12% or 22%.
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Why deferred comp makes conversion timing harder, not easier
A Roth conversion moves pre-tax retirement dollars into a Roth account, paying ordinary income tax now for tax-free growth later. Deferred comp complicates the timing because NQDC distributions arrive as large, pre-scheduled income spikes that decide which future years hold inexpensive conversion room. A distribution year is usually a high-cost conversion year, and a low-income gap year a low-cost one, so where each conversion sits on the rate schedule drives any Roth conversion break-even analysis.
Why “just fill the 24% bracket” advice misfires when income swings
General guidance to convert up to the top of the 24% bracket assumes level income. An executive whose taxable income can swing more than $200,000 between a payout year and a gap year does not. In a gap year a 24% target may push past the IRMAA threshold before reaching the bracket top of $403,550 for a married couple. The bracket is one ceiling; the deferred-comp schedule and Medicare surcharge thresholds often bind first.
What does your 409A distribution schedule tell you before any conversion?
Your 409A distribution election, chosen when you deferred the pay, governs when the money is taxed and is difficult to change. Reading that schedule (lump sum or installments, the trigger event, and the timing rules) before planning any conversion tells you which future years are spikes and which are troughs.
Lump sum vs installments: one spike or a multi-year plateau
A lump-sum election creates one tall income spike, then a runway of low-income years. An installment election spreads the income into a multi-year plateau: smaller annual spikes, but a longer stretch during which conversion room stays suppressed. A $450,000 lump plus $30,000 of other income can push a married couple into the 32% bracket, so any conversion that year is taxed at 32% or more. Once the payout ends, a low-bracket conversion becomes feasible.
Can you re-time a 409A payout to open conversion room?
Rarely, and only within strict limits. Under Section 409A, a subsequent-deferral election must be made at least 12 months before the scheduled payment, take effect no sooner than 12 months later, and push the payment out at least five additional years. Accelerating a payout is prohibited outright. In practice the distribution calendar you elected is close to fixed, so the conversion plan is built around it.
Separation triggers, the six-month specified-employee delay, and the age-63 IRMAA marker
Many NQDC schedules pay on separation from service. For a “specified employee” of a publicly traded company, 409A requires that a separation-triggered distribution be delayed at least six months, which can shift a large payout into the next tax year and move the conversion window with it. Because IRMAA uses a two-year MAGI lookback and Medicare Part B begins at 65, income at age 63 or later is the first that can raise premiums.
Is NQDC the same as a 457(b) you can convert to Roth?
No, and this trips up many searches. A 409A nonqualified plan is an unfunded promise from your employer and cannot be rolled to an IRA or converted to a Roth. A governmental 457(b) is an eligible retirement plan: it can be rolled to a traditional IRA and then converted, or converted in-plan where a designated Roth account is offered. The rollover rules turn on which plan you hold.
| Plan type | Sponsor | Can it be rolled to an IRA and converted to Roth? |
|---|---|---|
| 409A nonqualified deferred comp (NQDC) | Private employer, “top hat” group | No. Taxed as ordinary income on the 409A payout schedule |
| 457(f) nonqualified plan | Tax-exempt or governmental entity | No. Nonqualified; not an eligible rollover plan |
| Governmental 457(b) / DCP | State or local government | Yes. Eligible plan; rollover to IRA then Roth conversion, or in-plan Roth where offered |
| Non-governmental 457(b) | Tax-exempt employer | No. Can move only to another non-governmental 457(b) |
If your balance sits in a 409A NQDC plan, there is no converting that money itself. The lever you control is your separate IRA or 401(k); the deferred comp schedule only shapes which years are cheap to convert.
When are the lower-cost years to convert: the window after deferred comp ends
For many executives a low-bracket window opens after the final NQDC installment and before Social Security and required minimum distributions begin. With wages and deferred-comp income gone, taxable income can drop sharply. The window is finite: it closes once RMDs begin at age 73, or 75 for those born in 1960 or later.
The trough between your last installment and Social Security/RMDs
This gap is often among the lowest-income stretches an executive experiences while still holding large pre-tax balances. Delaying Social Security to 70 with no earned income can leave several years where only modest interest, dividends, or a small pension appear on the return. Many use that runway for a deliberate conversion sequence, spreading conversions across each low-income year rather than converting one lump.
How much should you convert in a gap year?
The aim is to fill a chosen ceiling without spilling over it. Consider a married couple, both 67 and on Medicare, with about $30,000 of other income. The 24% bracket tops out at $403,550 of taxable income, but the joint IRMAA surcharge begins at $218,000 of MAGI. To hold MAGI at $218,000, the conversion caps near $188,000, keeping taxable income in the 22% bracket. Deciding how much to convert to Roth is this ceiling-selection problem.
Why converting before RMDs (73/75) matters
Once required minimum distributions begin, the runway compresses. An RMD must be taken first in an RMD year and cannot itself be converted, and it adds ordinary income that pushes any remaining conversion up the brackets. Converting during the gap years, while balances are large and income is low, is the window that closes at age 73, or 75 for those born in 1960 or later (earliest age-75 RMD year 2035).
A worked payout-and-conversion calendar
A payout-and-conversion calendar lines up the two schedules side by side: the years NQDC is paid (little or no conversion) against the gap years (converting toward a chosen ceiling). Layering in the IRMAA two-year lookback, the net investment income tax, and charitable levers turns scattered tactics into one multi-year sequence. The figures below are hypothetical only.
The IRMAA cliff and the two-year lookback (2026 joint tiers)
IRMAA is a cliff, not a ramp. For 2026, joint filers pay the standard $202.90 Part B premium up to $218,000 of MAGI; crossing that line by one dollar moves both spouses to the next tier. The table shows the 2026 joint tiers, set from MAGI two years earlier, so 2026 premiums use the 2024 return.
| 2026 MAGI (married filing jointly) | Monthly Part B | Monthly Part D surcharge |
|---|---|---|
| $218,000 or less | $202.90 | $0.00 |
| $218,001 to $274,000 | $284.10 | $14.50 |
| $274,001 to $342,000 | $405.80 | $37.50 |
| $342,001 to $410,000 | $527.50 | $60.40 |
| $410,001 to $749,999 | $649.20 | $83.30 |
| $750,000 or more | $689.90 | $91.00 |
Because the surcharge applies per person, crossing the first joint threshold costs a married couple roughly $2,300 in extra annual premiums, for both spouses at once. Now assume an executive couple with five NQDC installments of $180,000 at ages 62 through 66, Social Security deferred to 70, and RMDs beginning at 73. The gap window is ages 67 to 72.
| Years | Income picture | Conversion approach | Approx. MAGI |
|---|---|---|---|
| Ages 62 to 66 (payout years) | NQDC $180k plus other $30k | Convert $0 | ~$210,000 |
| Ages 67 to 72 (gap years) | Other income ~$30k only | Convert toward a chosen ceiling (~$185k) | ~$215,000, below the surcharge line |
| Age 73 and beyond | RMDs plus Social Security begin | Convert little or nothing | Rises with RMDs |
Now compare two ways to convert $300,000 across the gap years:
| Illustrative outcome | $300,000 in one gap year | $100,000 across three gap years |
|---|---|---|
| Taxable income reached | ~$294,500 | ~$94,500 each year |
| Top marginal rate touched | 24% | 12% |
| Approx. federal tax on the conversion | ~$55,900 | ~$32,500 total |
| MAGI vs $218,000 joint IRMAA floor | ~$330,000 (over) | ~$130,000 (under) |
| IRMAA surcharge, couple | Second surcharge tier, ~$5,800 that year | $0 |
The spread-out approach keeps the $300,000 largely in the 12% bracket and avoids surcharges; the lump reaches the 24% bracket and a Medicare tier. Actual results depend on each household’s full return.
Coordinating NUA, QCDs, NIIT, and paying tax from outside cash
Several levers pair with the calendar. Net unrealized appreciation (NUA) on employer stock, qualified charitable distributions (QCDs) from an IRA once you reach age 70.5, and bunching charitable gifts can each shape the income line. A conversion is ordinary income, not net investment income, so it is not subject to the net investment income tax, though it can lift MAGI enough to expose other investment income to that 3.8% levy above $250,000 for joint filers.
A decision checklist
Before acting, executives weighing a conversion around a deferred-comp payout often review:
- Read the 409A distribution election first: lump or installments, the trigger event, and the exact years income lands.
- Mark which years are payout years and which gap years form the conversion runway.
- Set each gap year’s ceiling from whichever binds first: the bracket top, the IRMAA thresholds, or the NIIT line.
- Confirm the source of the tax payment and the estimated-tax safe harbors that apply in any large-income year.
- Track the December 31 conversion deadline, since a conversion is irreversible once done.
- Review the plan with a qualified tax professional or adviser before executing.
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Frequently asked questions
Can nonqualified deferred compensation be rolled into a Roth IRA?
No. Nonqualified deferred compensation is not a qualified plan, so it cannot be rolled to an IRA or converted to a Roth IRA. It is taxed as ordinary income when it is paid under the 409A schedule. A Roth conversion is a separate step using existing IRA or 401(k) dollars, and the two interact only through your taxable income in a given year.
Should I do a Roth conversion the same year I receive a deferred comp payout?
Usually not. A deferred comp payout and a Roth conversion are both ordinary income, so combining them in one year fills your lower brackets with the payout and taxes the conversion at your top rate, often 32% or 35%. Many executives convert little or nothing in payout years and concentrate conversions in the lower-income gap years instead.
Is it better to take deferred comp as a lump sum or in installments?
Neither fits every case; it depends on your other income and conversion plan. A lump sum creates one tall income spike and a long low-income runway afterward. Installments spread the income into a multi-year plateau that keeps conversion room suppressed for longer. The 409A election is usually made years in advance and is hard to change later, so it is worth modeling before you elect.
Can you change a 409A distribution election?
Rarely, and only within strict limits. Under Section 409A, a subsequent-deferral election must be made at least 12 months before the scheduled payment, cannot take effect for at least 12 months, and must push the payment out at least five additional years. Accelerating a payout is prohibited, so the distribution calendar you elected is close to fixed.
What are the lower-cost years to do a Roth conversion before RMDs?
For many executives the lowest-cost years fall after the final deferred comp installment and before Social Security and required minimum distributions begin. Wages and NQDC income are gone, so taxable income can drop into lower brackets. That gap window closes once RMDs start at age 73, or 75 for those born in 1960 or later.
Does a Roth conversion count toward IRMAA?
Yes. A Roth conversion is taxable ordinary income and raises your modified adjusted gross income (MAGI), which Medicare uses to set IRMAA surcharges. Because IRMAA relies on a two-year lookback, a conversion at age 63 or later can raise Part B and Part D premiums two years afterward. A conversion is not itself net investment income, though it can lift MAGI enough to affect other levies.
What is the six-month distribution delay for specified employees?
For a “specified employee” of a publicly traded company, 409A requires that a distribution triggered by separation from service be delayed at least six months. That delay can shift a large payout from one tax year into the next, which in turn moves the year that holds low-bracket conversion room. It is a detail worth confirming in the plan document.
How much can an executive defer compared with a 401(k) in 2026?
In 2026 the 401(k) elective deferral limit is $24,500, plus an $8,000 catch-up at age 50 or older ($11,250 for ages 60 to 63). Nonqualified deferred comp plans carry no statutory dollar cap, so executives often defer far more. That is why an eventual NQDC payout can dwarf a qualified-plan distribution.
