Backdoor Roth IRA for High Earners
If your income is above the direct Roth IRA limit, you are not locked out of tax-free retirement growth. The backdoor Roth IRA is a two-step process that still works for most high earners, even after recent tax-law conversations.
How it works
Step one: make a non-deductible contribution to a traditional IRA. Step two: convert that contribution to a Roth IRA. Because the original contribution was after-tax, the conversion is usually tax-free, assuming you have no pre-tax IRA balances.
The pro-rata rule
The pro-rata rule is the detail that trips people up. If you have any pre-tax traditional IRA, SEP, or SIMPLE IRA balances, the IRS treats the conversion as coming proportionally from pre-tax and after-tax money. That can make most of the conversion taxable. The fix is often to roll pre-tax balances into a current employer 401(k) before using the backdoor.
Mega backdoor Roth
Some employer 401(k) plans allow after-tax contributions well above the standard deferral limit, plus in-plan Roth conversions or in-service withdrawals. This is the mega backdoor Roth, and it can move tens of thousands more dollars into Roth accounts each year. Not every plan allows it, so check your summary plan description.
When to skip it
If you have large pre-tax IRA balances and no employer plan to roll them into, the backdoor Roth may not be clean. In that case, a Roth conversion analysis, deductible retirement contributions, or taxable investing might be better first steps.
Clearing the pro-rata problem before you convert
The pro-rata rule looks at the total balance of all your traditional, SEP, and SIMPLE IRAs on December 31 of the conversion year, not at the individual account you converted. If you hold $90,000 of pre-tax IRA money and convert a $7,000 non-deductible contribution, roughly 93% of the conversion is taxable. The standard fix is to roll the pre-tax IRA balances into your current employer's 401(k), which is excluded from the calculation, and then convert with a clean slate. Confirm your plan accepts incoming rollovers before you start — not all do.
Both partners should have their own
IRAs are individual accounts, so a married couple can run two backdoor Roths each year, and a spousal IRA lets the lower- or non-earning partner contribute against household income. The pro-rata rule is also applied per person, which means one partner's legacy pre-tax IRA does not contaminate the other's conversion. For two high earners this is one of the few remaining ways to add meaningful tax-free growth after the 401(k) is maxed.
Paperwork that protects you later
File Form 8606 for every year you make a non-deductible contribution. It is the only record establishing that those dollars were already taxed, and without it you risk paying tax twice on the same money decades from now. Keep the forms with your permanent records, not just in the tax return file, and check that your preparer or software actually generated one.
Why Roth dollars matter more for LGBTQ+ households
Roth balances have no lifetime required minimum distributions for the original owner, which gives you control over taxable income in retirement — and control over income is control over Medicare IRMAA surcharges, which are calculated from your return two years prior. Roth assets also pass to a non-spouse beneficiary, including an unmarried partner, without adding to their taxable income during the ten-year distribution window. For households that cannot rely on spousal rollover treatment, that is a real structural advantage.
Update the beneficiary the day you open it
A new IRA opened solely to execute the backdoor conversion is exactly the kind of account that never gets a beneficiary designation. It passes by contract, ahead of your will. Name the beneficiary during account opening and add it to the annual review list.
The backdoor Roth is not a loophole. It is a documented process that requires careful execution. Done right, it adds tax-free growth to a retirement plan that is otherwise capped by income.