What happens to your health insurance subsidy if your income goes up?

Your subsidy is a guess that gets graded in April

When you sign up on the Marketplace, you estimate your income for the year. That estimate sets your premium tax credit, and most people take it in advance so it lowers the monthly bill. The final check happens at tax time.

Then you file Form 8962 with your return. It compares the credit you received with the credit you qualified for based on your real income. Earned less than you thought? You may get money back. Earned more? You repay the difference, and starting in 2026 there's no cap on how much. HealthCare.gov puts it plainly: if you don't report the change, you'll have to pay back the difference.

For W-2 employees with a steady paycheck, this rarely bites. For self-employed and 1099 workers, it's one of the most common surprises at tax time, because nobody knows in November what next year's contracts will look like.

The cliff: where "some back" becomes "all of it back"

The premium tax credit has a ceiling again. Starting with tax year 2026, the IRS says you can't claim it if your household income is more than 400% of the federal poverty line, and you have to repay all of the advance payments you received.

Here's what that line looks like for 2027 coverage, which uses the 2026 poverty guideline of $15,960 for one person:

HealthCare.gov lists the 2026 poverty guidelines now; they set savings for 2027 plans. I'll update this page if anything changes.

The cliff is what makes this different from a normal tax bracket. One dollar under the line, you keep your credit. A few dollars over, you lose the whole year's credit. The Marketplace counts modified adjusted gross income, so it's your income after certain deductions, not the number on your invoices.

What it looks like in real life

Here's a made-up example to show the math. A 28-year-old freelance designer signs up in December and estimates $52,000 for the next year. At that income, she gets a credit that knocks $250 a month off her premium, $3,000 for the year.

In June, she lands a retainer. She finishes the year at $68,000 and doesn't update her estimate. When she files, her income is over 400% of the poverty line for one person. She doesn't qualify for any credit, so the full $3,000 comes due with her return, on top of the taxes on the extra income.

If she had updated her estimate in June, the Marketplace would have cut her credit for the rest of the year. Her monthly bill goes up, and her April bill shrinks to the credit she already got from January through May. It doesn't go away: above the line, she repays every advance payment. If she'd known she'd stay above the line, she could have compared a private plan that doesn't depend on income at all.

Four moves when your income is climbing

1. Update your estimate the month it changes

Log in to your Marketplace account and change your income estimate. The Marketplace recalculates your credit for the rest of the year. The sooner you do it, the fewer months are paid at the wrong amount.

2. Take less of the credit up front

You don't have to take the whole credit in advance. You can choose to apply less of it to your monthly premium and claim the rest when you file. If your income swings, that leaves room before you owe anything back.

3. Ask your tax preparer what lowers the number that counts

The Marketplace uses modified adjusted gross income. Some things that lower your adjusted gross income, like contributing to an HSA if you have an HSA-eligible plan, or certain retirement accounts for the self-employed, can lower it too. Whether that works for you is a question for your tax preparer, especially near the cliff. This isn't tax advice.

4. If you're over the line every year, stop planning around a subsidy

If you're consistently above 400%, the Marketplace is full price for you. That's exactly when a healthy person in their 20s or 30s should compare a private plan priced on age and health. Private plans ask health questions and can say no, may exclude pre-existing conditions, and don't have to cover every ACA benefit, so a Marketplace plan can still be the right call. But you should compare.

Who should stay on the Marketplace anyway

• Your income comfortably qualifies for help. A real subsidy is hard to beat. Keep it and keep your estimate current.
• You have a health condition or a baby on the way. Marketplace plans take everyone and cover pre-existing conditions and maternity.
• Your income is right at the line and could go either way. Stay flexible, take less of the credit up front, and talk to your tax preparer.

What I check for you

1. Get your income so far this year and your best guess for the rest of it.
2. Check where that lands against the 400% line for your household size.
3. If you're under it, I'll tell you to keep your Marketplace plan and update your estimate. That's the right answer for a lot of people.
4. If you're over it, or always will be, I'll price a private plan for your age, state and health next to the full-price Marketplace plan.
5. Line up any switch so there's no gap, and leave the tax questions to your tax preparer.

Where I land

A subsidy is based on a guess, and the guess gets checked at tax time. If your income goes up, update your Marketplace estimate right away. If you end up over 400% of the poverty line, you repay the whole credit, so near the line, be careful and get tax advice. And if you're over the line every year and healthy, compare a private plan instead of paying full Marketplace price by default.

Questions I get

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