Contributed by: AndyS, FreeTaxUSA Agent, Tax Pro
If you buy health insurance through the Marketplace, the Premium Tax Credit (PTC) can help lower your monthly premium. In 2026, the rules are changing, and it’s good to know how those changes may impact you. Some changes come directly from the One Big Beautiful Bill Act (OBBBA), while others happened because temporary extra help expired at the end of 2025.
What is the Premium Tax Credit?
The PTC helps individuals and families pay for health insurance they buy through the Health Insurance Marketplace. Many people choose to use the credit in advance to help pay their insurance premiums. This means the credit is sent straight to the insurance company during the year, which lowers the monthly premium.
At tax time, the IRS compares the advance credit you received with the credit you qualify for based on your modified adjusted gross income (MAGI) and household size. This process is called reconciliation. You’ll calculate this on Form 8962 and attach it to your tax return. If your income was lower than expected, you may get additional credit on your return. If your income was higher than expected, you may have to pay some credit back.
What are the biggest changes to be aware of?
Starting with tax years after 2025, the repayment cap is gone. This is one of the most important changes from OBBBA. In earlier years, many people had a limit on how much they had to pay back. That helped protect families when their income estimate was a little off. In 2026, that safety net is no longer there. If your income goes up during the year and you don’t update your Marketplace application, you could have a much bigger tax bill than you expect when you file your return.
Another major change is the return of the 400% federal poverty level limit. From 2021 through 2025, Congress temporarily removed this limit. That meant some households with income above 400% of the federal poverty level could still qualify for help if their premiums were high enough.
For 2026, that temporary expansion is over. In general, to get the PTC, your household income must be at least 100% and no more than 400% of the federal poverty level for your family size. If your income is above that limit, you may not qualify for any Premium Tax Credit.
How will I be affected by these changes?
These updates can affect families in two ways. First, some people may pay more each month for their insurance premiums because their advance tax credit is smaller or gone. Second, people who still receive advance payments need to watch their income estimates closely. A raise, bonus, new job, marriage, divorce, or household-size could affect the credit amount.
For example, imagine the Jones family estimated their income when they enrolled in Marketplace coverage. The Marketplace used that estimate to lower their monthly premium. Later in the year, Mrs. Jones received an unexpected promotion at work, which increased the family’s income. Because they didn’t report the change to the Marketplace, their advance PTC was based on an income estimate that was too low. As a result, they received more help with their insurance payments than they qualified for. Under the 2026 rules, the Jones family would have to pay back the full extra amount when they file their tax return. There’s no repayment cap to soften the impact.
What should Marketplace users do in 2026?
The best step is to keep your Marketplace information up to date. Don’t wait until tax season to fix an income estimate. If your income or household changes during the year, report it to the Marketplace as soon as possible so your credit can be adjusted before too much is paid in advance.
It’s also a good idea to review your plan options during open enrollment instead of letting your plan renew without checking. Premiums, tax credits, and plan choices can change from year to year. A plan that worked well in 2025 may not be the best fit in 2026. If you’re not sure which option is best for you, contact the Marketplace or a tax professional.
The bottom line
The changes from the OBBBA and the end of the expanded income rules mean Marketplace users should keep a closer eye on their income in 2026 and future years. If your income or household changes, updating your Marketplace application right away can help you avoid surprises. A little planning now can make it easier to manage your costs and reduce the chance of a large repayment at tax time.