Millions of Americans earn too much to contribute to a Roth IRA directly.
The IRS phases out contributions for single filers once modified adjusted gross income passes $146,000 in 2024, and $230,000 for married couples filing jointly.
Above those thresholds, the front door is locked.
But there's a legal side entrance that financial planners have used for years.
It's called the backdoor Roth IRA, and it lets high earners move money into a tax-free retirement account without breaking any rules.
You open a traditional IRA and make a non-deductible contribution, meaning you don't claim the tax break on the money going in.
Then you convert that balance to a Roth IRA.
Because you already paid taxes on the contribution, the conversion itself typically triggers little or no additional tax.
For 2024, the contribution limit is $7,000, or $8,000 if you're 50 or older.
A married couple can each do this, doubling the amount of tax-free growth they can shelter.
The IRS looks at all your traditional IRA balances when calculating taxes on a conversion, not just the money you just put in.
If you already hold a large pre-tax traditional IRA, the conversion gets taxed proportionally under the pro-rata rule.
Say you have $93,000 in a pre-tax IRA and add a $7,000 non-deductible contribution.
Only 7% of your conversion would be tax-free.
The rest gets hit with ordinary income tax.
That surprise has burned plenty of do-it-yourself investors who assumed the whole $7,000 would convert cleanly.
The common fix is to roll existing pre-tax IRA money into a workplace 401(k) before attempting the maneuver.
Not every plan allows incoming rollovers, so check with your HR department first.
If you have no other IRA balances, the process stays clean and cheap.
Most major brokers, including Fidelity, Schwab, and Vanguard, charge nothing to open an IRA or process a conversion.
But some charge $50 or more to close an account, and a few still levy conversion fees.
Conversions are reported on Form 8606, and the tax bill lands in the year you convert, not the year you contributed.
Convert in December and you owe tax that April.
Convert in January and you get a full year of tax-free growth before filing.
One more wrinkle worth knowing: the IRS eliminated the ability to undo a conversion.
The recharacterization option for Roth conversions disappeared after 2017.
Once you convert, you're locked in, even if the market drops the next day.
You generally need to wait five years after a conversion before withdrawing that converted money penalty-free if you're under 59½.
Each conversion starts its own clock, which catches frequent converters off guard.
If you're in a low tax bracket now and expect higher taxes later, a Roth makes sense.
If you're near retirement and expect a lower rate, the math may not work in your favor.
Run your own numbers or talk to a tax professional before converting six figures.
Congress has eyed closing this loophole for years.
Proposals have surfaced repeatedly, and while nothing has passed, the window could close with little warning.
Anyone planning to use it should weigh acting sooner rather than later. **Our take:** The backdoor Roth remains one of the few legitimate tax breaks left for higher earners, but it rewards preparation and punishes sloppiness.
Final Thoughts
Clear out pre-tax IRA balances first, watch the pro-rata math, and treat the five-year clock as a real constraint rather than a footnote.