Every January, a fresh batch of savers discovers the Roth IRA door is locked, and they're standing outside holding a contribution they can't make.
The income limits that govern who can fund a Roth shifted again for the new tax year, and the ceiling is higher—but not high enough for everyone who assumed they qualified.
For 2025, single filers can make a full contribution if their modified adjusted gross income stays under $150,000, phasing out completely at $165,000.
Married couples filing jointly get a full contribution up to $236,000, with the door closing at $246,000.
Those numbers creep up most years, but they trail behind what a lot of dual-income households in expensive metros actually earn.
Here's the part that trips people up: the limit is based on modified adjusted gross income, not your salary, and not your take-home pay.
A year-end bonus, a side gig, a capital gain from selling a rental property, or a mutual fund distribution can push you over the line without you realizing it until tax time.
Contribute when you think you're eligible, find out in April you weren't, and you're now dealing with excess contribution penalties unless you fix it fast.
The workaround most people reach for is the backdoor Roth—contributing to a traditional IRA and converting it.
This isn't a loophole the IRS forgot to close; it's a maneuver that's been explicitly permitted for years.
But it comes with a catch that surprises people: if you already hold a traditional IRA with pre-tax money in it, the pro-rata rule taxes your conversion based on the ratio of pre-tax to after-tax dollars across all your IRAs.
That means a clean backdoor conversion is easiest for people who don't have a pile of old 401(k) rollovers sitting in a traditional IRA.
The other option is a mega backdoor Roth through your employer's 401(k), if your plan allows after-tax contributions and in-service conversions.
Most plans don't, and the ones that do tend to serve higher-paid employees at large companies.
So the people hitting the income limit often have the fewest clean options—a detail worth noticing.
The rules are complicated enough that plenty of people pay someone to navigate them, and the backdoor conversation is a staple of advisory meetings every winter.
Brokerages benefit too, since conversions generate transactions and sometimes fees.
The IRS benefits because missteps generate penalties.
The saver, meanwhile, has to do homework just to figure out whether they're allowed to save in the first place.
If you're near the threshold, check your projected MAGI before you contribute, not after.
Look at bonuses, freelance income, and any investment sales you've already made this year.
If you're over the limit, the backdoor route may still work for you—but run the pro-rata math first if you have existing traditional IRA balances.
The Roth IRA remains a genuinely good deal for people who qualify: tax-free growth, no required distributions, flexibility on withdrawals of contributions.
But "good deal" and "available to you" are two different questions, and the gap between them widens as your income grows.
Treat the income limit as a planning item, not a surprise.
The rules aren't designed to punish success, but they do penalize people who don't read them carefully.
Final Thoughts
Know your number before you contribute, or the IRS will happily remind you later.