The backdoor Roth IRA is having another moment, and this time Washington gave it a nudge.
Tucked into recent tax legislation, a rule change starting in 2026 ends the "stretch IRA" perk for most non-spouse heirs, capping inherited retirement accounts at 10 years.
For high earners already locked out of direct Roth contributions, that deadline math is pushing the strategy back into financial planning conversations.
Here's the plain-English version: a backdoor Roth is a two-step move.
You contribute to a traditional IRA, then convert it to a Roth.
Since Roth income limits only apply to direct contributions, this lets people above the earnings cutoff (currently $161,000 single, $240,000 married filing jointly for 2025) get money into a Roth anyway.
You pay income tax on the conversion, but qualified withdrawals later come out tax-free.
The catch most people miss is the pro-rata rule.
If you hold any pre-tax money in a traditional IRA — from an old 401(k) rollover, say — the IRS doesn't let you convert just the after-tax dollars.
It taxes the conversion proportionally across your entire IRA balance.
That can turn a clean maneuver into an unexpected tax bill, especially for anyone who consolidated old workplace plans years ago.
Your IRA custodian may report the conversion on Form 1099-R, but it won't track your basis.
You have to file Form 8606 to tell the IRS which dollars were already taxed.
Skip it and you could pay taxes twice on the same money.
Tax pros say this is the single most common backdoor Roth error.
The 2025 IRA contribution limit is $7,000, or $8,000 if you're 50 or older.
You don't have to convert right away, but waiting creates more pro-rata complications if your balance grows.
And a Roth conversion has no income limit, so the door itself is legal — the mechanics just demand attention.
One more wrinkle worth flagging: the 10-year rule for inherited IRAs is complex and still being clarified by the IRS.
Some beneficiaries face annual distribution requirements within that window.
If you're planning an estate around a Roth, that's a conversation for a tax professional, not a blog post.
The takeaway for households weighing this: the strategy still works, but the details matter more than ever.
A quick check of your existing IRA balances before you convert can save you from a surprise in April.
For high earners with clean, empty traditional IRAs, it remains one of the few legal ways to build tax-free retirement income.
Our take: the backdoor Roth isn't a loophole so much as a feature Congress left open, and the new inheritance rules make tax-free growth more valuable, not less.
Final Thoughts
But it rewards preparation and punishes sloppiness — so run the numbers, file the form, and don't wing it.