If you've been faithfully squirreling money into a Roth IRA, there's a number you need to check before you get too comfortable: your modified adjusted gross income.
The IRS sets income limits that determine who can contribute to a Roth IRA and how much they're allowed to put in.
Cross the threshold, and your ability to fund one of the most flexible retirement accounts in America starts to shrink—or disappear entirely.
For 2025, the income phase-out ranges shifted slightly upward, which is good news for higher earners who were previously locked out.
Single filers can make a full contribution if their modified adjusted gross income stays under $150,000, with the ability phasing out completely at $165,000.
Married couples filing jointly get more room: full contributions up to $236,000, phasing out at $246,000.
These numbers adjust most years for inflation, so what blocked you two years ago might not block you today.
That "modified adjusted gross income" figure isn't just your salary line on a W-2.
It can include bonuses, side gig income, taxable investment gains, and certain deductions added back in.
A raise, a profitable year of freelancing, or cashing out some stock could quietly push you over the line without you realizing it until tax time.
That's why checking your number in December—not April—matters.
If you find yourself in the phase-out zone, you don't have to give up entirely.
You can still contribute a reduced amount, and the math is done on a sliding scale.
The IRS provides a worksheet, and most tax software handles it automatically.
But if you contribute the full $7,000 (or $8,000 if you're 50 or older) and later discover you weren't eligible, you'll owe a 6% excess contribution penalty for every year the money stays in the account.
Fixing it means withdrawing the excess plus any earnings before the tax filing deadline.
For those who blow past the limits completely, there's a legal workaround that's become wildly popular: the backdoor Roth.
You contribute to a traditional IRA—which has no income limit—then convert it to a Roth.
It sounds like a loophole, and functionally it is, but it's fully permitted by the IRS.
The catch is the pro-rata rule, which can trigger a tax bill if you already hold pre-tax money in a traditional IRA.
That's a detail worth running past a tax pro before you pull the trigger.
One more thing people miss: the income limits apply to who can contribute, not to how much your existing Roth can grow.
Once the money is in, it grows tax-free and comes out tax-free in retirement, no matter how high your income climbs later.
So even a few years of contributions during lower-earning decades can compound into something meaningful.
The takeaway is simple: know your number before you write that check.
A five-minute look at last year's tax return could save you a penalty, a headache, or a missed opportunity.
My honest take: the Roth income limits feel arbitrary and often catch people off guard, but they're not going away.
The smartest move is to check your eligibility every single year—your income changes, and so do the thresholds.
Final Thoughts
Treat it like an annual financial chore, right alongside reviewing your insurance.