LGBTQ Advisor Match

Roth Conversion Strategy for LGBTQ+ Households

Why domestic partners need a fundamentally different Roth conversion approach than married couples, and how to design a conversion plan around your specific household structure. Not financial or tax advice — your situation requires a fee-only advisor who has modeled these rules many times.

Standard Roth conversion advice compares your current marginal tax rate to your projected rate in retirement. Convert when rates are low now; stay traditional when they're high. That framing is correct — but it misses the factor that makes Roth conversions more urgent for domestic-partner couples than for any other household type: what happens to your pre-tax retirement accounts when one partner dies.

For married couples, a surviving spouse can roll the deceased spouse's IRA into their own IRA and continue deferring distributions for the rest of their life. For domestic partners, that option does not exist. A domestic partner who inherits an IRA is a non-spouse beneficiary — forced to liquidate the entire account within 10 years, often on top of their own earned income, often during peak earning years.1

The mechanics of Roth conversion apply equally to everyone. But the size of the penalty for not converting — and the urgency of doing it before one partner's death — is dramatically higher for domestic-partner couples than for their married peers.

Contents

  1. The problem: your traditional IRA is a tax liability for your partner
  2. How Roth conversion works (mechanics)
  3. Conversion window years: when to convert
  4. Sizing your conversions: bracket-filling math
  5. The IRMAA timing problem
  6. Roth 401(k) contributions: the front-door alternative
  7. Married same-sex couples: a different calculus
  8. Single LGBTQ+ individuals: the narrow bracket problem
  9. When NOT to convert
  10. Worked example: decade-by-decade conversion plan

1. The Problem: Your Traditional IRA Is a Tax Liability for Your Partner

Imagine you and your domestic partner have built a solid retirement nest egg. You each have $600,000 in traditional 401(k) and IRA accounts — pre-tax money that has never been taxed. If one of you dies, the surviving partner inherits your $600,000 pre-tax balance.

Because the survivor is a non-spouse beneficiary, they must distribute the entire inherited IRA within 10 years. If the deceased partner had already reached their required beginning date (April 1 of the year after turning 73 under SECURE 2.0 for those born before 1960; 75 for those born 1960 or later), annual RMDs also apply during those 10 years.1

The math on a $600,000 inherited traditional IRA for a domestic partner:
Survivor is 65 years old at inheritance, earns $80,000 from their own job. Taking $60,000/year to distribute the $600,000 over 10 years (simplified, no growth), the survivor adds $60,000 to their $80,000 income = $140,000 AGI. In 2026, that pushes substantial income into the 22% federal bracket, triggers state income tax, and may affect ACA premiums. Over 10 years: roughly $130,000–$160,000 in total federal + state income taxes on that $600,000 — in addition to taxes on the survivor's own retirement accounts. A $600,000 Roth IRA inherited by the same domestic partner produces zero federal income tax on distributions, regardless of the 10-year rule.

This is not a marginal planning tweak. For domestic-partner couples, converting pre-tax balances to Roth reduces what becomes a forced-taxable event when the first partner dies. You cannot stop that event from triggering the 10-year rule — but you can reduce the pre-tax balance that's subject to it by converting during your lifetimes.

Use our Domestic Partner Inherited IRA Tax Calculator to model the exact dollar gap for your specific ages, IRA balance, and expected survivor income.

2. How Roth Conversion Works

A Roth conversion is not a withdrawal — it is a transfer from a traditional IRA or pre-tax 401(k) into a Roth IRA, with the converted amount included in your taxable income in the year of conversion. No 10% early withdrawal penalty applies (though you should not use funds from the IRA itself to pay the tax if you can avoid it — you want the full converted amount growing in Roth).

The mechanics for a traditional IRA are straightforward: your financial institution transfers the amount directly into a Roth IRA at the same custodian (or at a different one via a 60-day rollover). The converted amount appears on Form 1099-R with a distribution code of 2 (under 59½) or 7 (over 59½), and you report it on Form 8606.

Pre-tax 401(k) balances at a current employer typically cannot be converted directly — you would need an in-service rollover to a traditional IRA first (if your plan allows), or wait until you leave the employer and roll to a traditional IRA, then convert. After-tax 401(k) balances (if your plan allows after-tax contributions) can be converted to Roth immediately via the "mega backdoor Roth" — see section 6 below.

There is no income limit on Roth conversions. Unlike direct Roth IRA contributions, anyone can convert at any income level. The converted amount adds to your AGI for the year, which affects your marginal tax rate, ACA premium tax credits, IRMAA, and state income taxes — all factors you need to model before deciding how much to convert in a given year.

3. Conversion Window Years: When to Convert

Roth conversion makes the most sense when your current marginal tax rate is lower than your expected future rate. Several life events create windows that are particularly valuable for LGBTQ+ households:

Early retirement gap years. If you retire before Social Security begins (say, at 60), and before Required Minimum Distributions kick in (age 73 or 75), your taxable income may be substantially lower than it was during your career. This is the classic conversion window. A domestic-partner couple in this gap can convert aggressively — filling the 22% or 24% bracket — before RMDs and Social Security compress that room.

Before Social Security claiming. For a couple planning to delay claiming to 70 (which maximizes the monthly benefit for both partners' lifetimes), the years between retirement and age 70 are often the lowest-income years of retirement. This window is especially important for domestic-partner couples, because once both partners begin Social Security, there is no survivor "bump" for the DP survivor the way there is for a married surviving spouse. Maximizing each partner's own benefit independently is the correct strategy — meaning both should ideally delay. The years while you're delaying and not yet collecting are prime conversion years.

Job change or sabbatical. A year with unusually low income from a career break, parental leave, or part-year employment can be a useful conversion window. Even converting $20,000–$30,000 in a low-income year reduces the pre-tax balance without adding much marginal tax.

After a business sale.** For LGBTQ+ business owners who take a single large gain year, the years immediately after the sale — when income drops back to normal — can be strong conversion years. The year of sale itself usually is not, because the sale proceeds push you into high brackets.

The 60–63 super catch-up window. Between ages 60 and 63, you can contribute $35,750 to your 401(k) (2026: $24,500 base + $11,250 super catch-up).2 If your plan allows Roth 401(k) contributions, this window lets you build Roth balance quickly. Combined with taxable-account Roth conversions, ages 60–63 can be among the most productive Roth accumulation years of your life.

After the death of one partner (for the survivor). When a domestic partner dies, the surviving DP is now filing as a single taxpayer — and the inherited IRA forces distributions over 10 years. The conversion window for the survivor is narrow: if they have their own pre-tax IRAs, converting some of those balances in years before RMDs kick in on their own account reduces the compounding tax problem. This is a specific post-loss planning move a fee-only advisor should model immediately after a partner's death.

4. Sizing Your Conversions: Bracket-Filling Math

The goal of most Roth conversion strategies is to fill a bracket without overflowing into the next one. Here is the 2026 federal bracket structure relevant to conversion sizing:3

Rate Single filer (taxable income) Married Filing Jointly (taxable income)
10%$0 – $12,500$0 – $25,000
12%$12,501 – $50,850$25,001 – $101,700
22%$50,851 – $105,700$101,701 – $211,400
24%$105,701 – $201,775$211,401 – $403,550
32%+Above $201,775Above $403,550

Taxable income = AGI minus the standard deduction ($16,100 single / $32,200 MFJ in 2026). The conversion amount adds to AGI dollar-for-dollar.

Example: single domestic partner in early retirement. Your only income is $30,000 of Social Security benefits (85% taxable = $25,500 included in AGI). Standard deduction $16,100 → taxable income $9,400. You are deep in the 10% bracket. You can convert up to $41,450 before hitting the 12% bracket (filling 12% bracket: $50,850 − $9,400 = $41,450). You can convert up to $96,300 before hitting the 22% bracket ($105,700 − $9,400 = $96,300). The "fill-to-top-of-12%" conversion amount would add $41,450 to your income and be taxed at 12% on the top portion: roughly $4,000–$5,000 in federal tax on those dollars. On a $41,450 converted amount, that's roughly a 10–12% blended rate — almost certainly lower than your partner will pay on a forced 10-year distribution in retirement.

Finding the conversion headroom each year:

  1. Estimate your total AGI for the year without the conversion: Social Security, pension, investment income, RMDs if any, other income.
  2. Subtract the standard deduction (or itemized deductions if higher) to get taxable income.
  3. Find how many dollars remain until the top of the bracket you want to fill (e.g., top of 22% = $105,700 single).
  4. That gap is your maximum conversion amount for the year at that bracket rate.
  5. Check the IRMAA threshold before finalizing — see the next section.

5. The IRMAA Timing Problem

IRMAA (Income-Related Monthly Adjustment Amount) is a Medicare Part B and Part D surcharge that applies when your prior-year MAGI exceeds certain thresholds. In 2026, the first-tier IRMAA begins at $109,000 for single filers and $218,000 for married couples filing jointly.4 IRMAA is based on income from two years ago — so a large Roth conversion in 2026 will affect your Medicare premiums in 2028.

This creates a critical constraint for domestic-partner couples, who each file as single. For a DP couple converting in early retirement, IRMAA begins at $109,000 of individual MAGI — not household MAGI. A single filer with $90,000 of retirement income has $19,000 of conversion headroom before IRMAA kicks in. A married couple with $180,000 of combined retirement income has $38,000 of conversion headroom at the same marginal income level because their threshold is $218,000.

This does not mean domestic partners should convert less. It means they should convert more aggressively in the years before Medicare eligibility (before age 65), when IRMAA is not yet a factor. The window between retirement and Medicare enrollment is especially valuable for DPs — no IRMAA constraint, lower income than working years, and building Roth balance before the first partner might die.

Once in Medicare, the strategy shifts: fill to just below $109,000 MAGI (single) each year rather than optimizing for bracket rates alone. A Roth conversion that adds $20,000 to income and keeps you at $108,000 is optimal; the same conversion that pushes you to $115,000 saves taxes now but adds the IRMAA surcharge for two future years.

6. Roth 401(k) Contributions: The Front-Door Alternative

Instead of converting after the fact, domestic-partner employees who have a 401(k) with a Roth option can elect to make Roth contributions rather than pre-tax contributions. You get no upfront deduction, but the money grows tax-free and — unlike a traditional 401(k) — passes to a non-spouse beneficiary with no ordinary-income tax on qualified distributions (though the 10-year rule still applies to inherited Roth accounts for non-spouse beneficiaries).

The 2026 contribution limits are the same whether you choose traditional or Roth: $24,500 in elective deferrals, with a $8,000 catch-up at age 50–59 and 64+, and an $11,250 super catch-up at ages 60–63.2 Note: Under SECURE 2.0, if you earn more than $150,000 in FICA wages, you are required to make any catch-up contributions as Roth (starting 2026).5

The Roth 401(k) vs. traditional decision follows the same logic as conversion: if you're in a high bracket now and expect to be lower in retirement, traditional is better. If you expect roughly equal rates or are prioritizing the inherited-IRA problem, Roth 401(k) gives you a running start.

Mega backdoor Roth. If your plan allows after-tax contributions (beyond the $24,500 elective limit) and in-service distributions or in-plan Roth conversions, you can contribute after-tax dollars up to the total 401(k) limit ($70,000 in 2026 including employer match) and immediately convert the after-tax portion to Roth.6 This is the highest-volume Roth accumulation strategy available. Not all plans allow it — check your Summary Plan Description. Tech-company plans (Google, Microsoft, Meta, Amazon, and many others) commonly support this. An LGBTQ+ specialist advisor familiar with tech-employee benefits can confirm whether your specific plan allows it.

7. Married Same-Sex Couples: A Different Calculus

For legally married same-sex couples, the inherited IRA problem does not apply. A surviving spouse can roll the deceased spouse's IRA into their own IRA, continue deferring distributions based on their own lifetime, and delay RMDs until their own required beginning date. The urgency of Roth conversion is correspondingly lower — though not zero.

Married same-sex couples still benefit from Roth conversion in three situations:

  • Widowhood bracket compression. When both spouses are alive, a MFJ household with $250,000 of combined income is in the 24% bracket ($211,400–$403,550 MFJ). When one spouse dies, the survivor files as single. At $150,000 of single income, they're in the 22% bracket ceiling ($105,700), and at $200,000 they hit the 24% ceiling ($201,775). The bracket narrows — and if the survivor has large traditional IRA balances plus RMDs, they may face higher effective rates as a single filer than the couple ever faced jointly. Converting to Roth while both are alive, when MFJ brackets are wider, is a hedge against this.
  • The IRMAA advantage of MFJ conversion. Because the married IRMAA threshold is $218,000 vs $109,000 single, a married couple can convert significantly more before triggering IRMAA than a DP couple can. Use this window generously before one spouse dies and the survivor becomes a single filer subject to the lower threshold.
  • Estate planning and portability. For married same-sex couples with estates approaching $15M (the 2026 OBBBA exemption), converting pre-tax IRAs to Roth removes those assets from the taxable estate — Roth IRAs are includable in gross estate but grow tax-free and distribute tax-free, reducing the estate tax problem on the Roth balance that grew after conversion.

8. Single LGBTQ+ Individuals: The Narrow Bracket Problem

Single LGBTQ+ individuals face the most compressed conversion environment of any household type. The 22% bracket ceiling is $105,700 (single taxable income) in 2026, and IRMAA begins at $109,000 of MAGI — just above the point where conversions start to get expensive.

For a single retiree with $60,000 of Social Security + investment income, there is roughly $30,000–$40,000 of annual conversion capacity before hitting the 22% bracket ceiling, and roughly $49,000 before IRMAA. That's usable but modest — enough to meaningfully reduce pre-tax balances over a 10–15 year horizon if started early.

For single high-earners still working: direct Roth IRA contributions phase out at $153,000–$168,000 MAGI, but the backdoor Roth (non-deductible traditional IRA → immediate conversion) is available at any income. The pro-rata rule applies — if you have large pre-tax IRA balances, a backdoor Roth triggers a tax on the pre-existing untaxed balance. A fee-only advisor familiar with Form 8606 can structure this correctly.

The specific advantage for single LGBTQ+ individuals: you are building wealth for yourself and your chosen beneficiaries (which may be a domestic partner, chosen family, or charitable organizations). The inherited IRA 10-year rule applies to all non-spouse beneficiaries. If you plan to leave your estate to a domestic partner or other non-spouse, Roth accounts pass to them with the same 10-year rule — but tax-free distributions, dramatically reducing the forced-income problem compared to a traditional IRA inheritance.

9. When NOT to Convert

Roth conversion is not always the right move. Converting is likely the wrong call when:

  • You're in a significantly higher bracket than your partner will be at death. If one partner earns $280,000 (32% marginal rate) and the other earns $40,000, the surviving partner inheriting a traditional IRA at $40,000 of other income would distribute over 10 years at mostly 22% rates. Converting at 32% now to save future distributions at 22% is backward.
  • You live in a high-tax state and expect to move. California, New York, New Jersey, and Oregon have top marginal rates of 9–13%. If you plan to retire to a no-income-tax state (Nevada, Florida, Texas, Washington, Tennessee), delaying conversion until after the move saves the state tax on the converted amount.
  • Your time horizon is short. Roth conversion's benefit compounds over time. A partner or individual with a serious illness and a short expected lifespan may be better off leaving assets in traditional IRAs — if the estate goes to a non-DP heir (e.g., chosen family member in a low bracket), the tax at distribution may be lower than the conversion cost today.
  • You need the conversion funds to pay the tax. If you must withdraw from the IRA itself to pay the conversion taxes, you are shrinking the tax-advantaged pool. Roth conversion works best when you have taxable-account funds to cover the tax bill, leaving the entire converted amount in Roth.

10. Worked Example: Decade-by-Decade Conversion Plan

Alex (54) and Jordan (52) are domestic partners in California. Alex earns $180,000 as a healthcare administrator; Jordan earns $95,000 as a nonprofit director. They plan to retire at 60 (Alex) and 62 (Jordan).

Today's balances: Alex: $480,000 traditional 401(k), $40,000 Roth IRA. Jordan: $310,000 traditional 403(b), $55,000 Roth 403(b).

Working years (ages 52–62): Both are in the 22%–24% bracket. They elect Roth contributions for their current deferrals — Alex makes Roth 401(k) deferrals ($24,500/year); at 60, Alex can use the super catch-up ($35,750). Jordan contributes Roth 403(b). No traditional-to-Roth conversions while working — income is too high to get a conversion rate below their current brackets.

Early retirement gap (Alex ages 60–70; Jordan ages 58–68): Neither has Social Security or RMDs yet. Alex takes $50,000/year from savings; Jordan takes $40,000. Combined income: $90,000. Filing as two single individuals (each with roughly $45,000 income), both are well under the 22% bracket ceiling ($105,700 single taxable income). Each can convert $40,000–$50,000/year in traditional balances at 12%–22% rates. Over 10 years, they convert $400,000–$500,000 of pre-tax traditional accounts into Roth — largely at rates they'll never see again. Remaining pre-tax balance at end of this window: roughly $400,000–$500,000 combined (factoring in growth).

Medicare years (ages 65+): Both now on Medicare. Each must keep MAGI below $109,000 to avoid IRMAA. Alex takes Social Security at 70 ($4,200/month = $50,400/year; 85% taxable = $42,840). Jordan delays to 70 similarly. With Social Security + investment income, each has roughly $20,000–$30,000 of annual conversion headroom. They continue converting modestly — reducing the traditional balance that will be inherited by the surviving partner.

At death of first partner: Remaining pre-tax balance (if conversions were done diligently): $200,000–$300,000, compared to $790,000+ at death with no conversions. The surviving partner's 10-year forced distribution generates $30,000/year rather than $79,000/year — a substantial reduction in forced taxable income during the survivor's late-retirement years.

This is a simplified illustration. The actual numbers depend on account growth rates, Social Security timing, state tax changes, healthcare costs, and other factors. The key message: the most powerful lever is starting conversions early and doing them consistently, not optimizing a single conversion year perfectly.

Related guides and tools

Get matched with a specialist

Sizing Roth conversions for a domestic-partner couple requires modeling the inherited IRA liability, IRMAA optimization for single filers, state-tax timing, and Social Security claiming — all at once. A fee-only LGBTQ+ specialist builds your conversion schedule around your specific household structure, account balances, and retirement timeline. Free match, no obligation.

Sources

  1. IRS — Required Minimum Distributions for IRA Beneficiaries. Non-spouse beneficiaries subject to 10-year rule under SECURE 2.0 § 401(b)(1); annual RMDs apply during the 10-year period when decedent had reached required beginning date (T.D. 10001, July 2024, finalizing inherited IRA rules). Spousal rollover (IRC § 408(d)(3)(C)) available only to legal spouses.
  2. IRS — 401(k) and IRA Contribution Limits 2026. Elective deferral limit $24,500; catch-up age 50–59 and 64+: $8,000 (total $32,500); super catch-up ages 60–63: $11,250 (total $35,750) per SECURE 2.0 § 109. IRA limit $7,500 (includes $1,100 catch-up at age 50+).
  3. IRS Rev. Proc. 2025-32. 2026 inflation-adjusted income tax brackets, standard deductions ($16,100 single / $32,200 MFJ), and contribution limits. Single 22% bracket: $50,851–$105,700 taxable income; 24%: $105,701–$201,775. MFJ 22%: $101,701–$211,400; 24%: $211,401–$403,550.
  4. Medicare.gov — Part B Costs and IRMAA 2026. IRMAA first tier: MAGI >$109,000 (single) or >$218,000 (MFJ). Based on income from 2 years prior. Surcharge applies to Part B and Part D monthly premiums.
  5. IRS — SECURE 2.0 Roth Catch-Up Requirement (§ 603). For plan years beginning after Dec. 31, 2025: employees with prior-year FICA wages exceeding $150,000 must make catch-up contributions as Roth. Applies to 401(k), 403(b), and governmental 457(b) plans.
  6. IRS — 401(k) Total Contribution Limits 2026. Total annual additions (employee + employer + after-tax contributions) may not exceed $70,000 in 2026 (415(c) limit). After-tax employee contributions above the elective deferral limit, if allowed by the plan, can be converted in-plan to Roth ("mega backdoor Roth") under IRC § 402(g) and § 415.

Tax values verified May 2026 against IRS.gov, Medicare.gov, and IRS Rev. Proc. 2025-32. Laws and regulations subject to change; confirm current rules with a qualified advisor before making financial decisions.