What Is the Premium Tax Credit and How Does It Work?

The premium tax credit is a refundable federal tax credit that helps you pay for a health plan bought through the Health Insurance Marketplace. You can take it as a monthly discount on your premium, paid straight to your insurer, or claim the full amount when you file your federal tax return. Because it is refundable, you receive it even if you owe no tax.¹ For 2026, the rules tightened: eligibility is again capped at 400% of the federal poverty level, and there is no longer any cap on how much excess advance credit you may have to repay at tax time.²

Who Qualifies in 2026

Your household income has to fall between 100% and 400% of the federal poverty level. For a single person, that is roughly $15,960 to $63,840. For a family of four, roughly $33,000 to $132,000.³ Income below 100% of the poverty level generally means you do not qualify for the credit, and you should check whether you are eligible for Medicaid instead.

Income here means Modified Adjusted Gross Income. Start with the adjusted gross income on your tax return, then add back foreign earned income, tax-exempt interest, and the nontaxable portion of Social Security benefits. Household MAGI is the total for you, your spouse if you file jointly, and any dependents who are required to file a return of their own.⁴

Income is only one gate. To claim the credit, you also have to:⁵

Buy coverage through the Health Insurance Marketplace, not directly from an insurer or through an off-exchange plan.
Not be eligible for Medicare, Medicaid, CHIP, or TRICARE.
Not have access to affordable employer coverage that meets minimum value standards.
File a joint return if you are married. Married filing separately disqualifies you, with a narrow exception for victims of domestic abuse or spousal abandonment.
Not be claimed as a dependent on someone else’s return.
Be a U.S. citizen or lawfully present immigrant, and not incarcerated.

When Employer Coverage Blocks the Credit

Having a job-based plan available to you does not automatically shut the door. The plan has to be both affordable and meet minimum value standards for it to block the credit. For 2026, employer coverage counts as unaffordable if your share of the premium for the cheapest self-only plan that meets minimum value is more than 9.96% of household income.² Above that, you can decline the plan, buy through the Marketplace, and claim the credit. Your employer’s Form 1095-C reports the employee cost used for this test.

How Your Credit Amount Is Calculated

The credit is built around a benchmark plan: the second-lowest-cost Silver plan sold in your area.⁶ You do not have to enroll in that specific plan, but its premium sets your baseline. The IRS assigns you an expected contribution, a percentage of your income you are supposed to pay toward the benchmark. The credit covers whatever the benchmark costs above that contribution.

The applicable percentages for 2026 rise with income:⁷

Below 133% FPL: 2.10% of household income
133% to 150% FPL: 3.14% to 4.19%
150% to 200% FPL: 4.19% to 6.60%
200% to 250% FPL: 6.60% to 8.44%
250% to 300% FPL: 8.44% to 9.96%
300% to 400% FPL: 9.96%

A single person around 150% of the poverty level pays about 4% of income toward the benchmark plan. Someone near 375% of the poverty level pays close to 9.96%. Pick a cheaper plan than the benchmark and your out-of-pocket premium drops further. Pick a more expensive one and you cover the difference yourself. Larger households receive larger credits because the benchmark covers more people, and geography changes the numbers too, since benchmark premiums vary from one area to another.

The 9.96% ceiling is a real change. From 2021 through 2025, no household paid more than 8.5% of income toward the benchmark, and eligibility ran past the 400% cliff. Those temporary rules expired at the end of 2025.² A 60-year-old couple sitting just above 400% of the poverty level could now face annual premiums over $22,000 with no subsidy at all, compared to the capped 8.5% share they would have paid the year before.⁸

Advance Payments or a Lump Sum at Tax Time

You get to choose how to receive the credit. Advance payments send money directly to your insurer each month, dropping the premium you actually pay. The alternative is to pay the full premium yourself all year and claim the entire credit as a lump sum on your tax return.

Most people take the advance option because paying full premiums for a year is not realistic. The tradeoff is that advance payments are based on the income you project at enrollment. If your real income turns out different, the numbers get squared up when you file. You can also choose to take only part of the advance credit, leaving the rest to claim at filing. In 2026, with no cap on repayments, taking a smaller advance is worth serious thought if your income moves around.

Settling Up on Your Tax Return

If you received any advance premium tax credit during the year, you have to file Form 8962 with your federal return to reconcile it.⁹ Early in the year the Marketplace sends you Form 1095-A, which lists each month of coverage and how much was paid in advance on your behalf.¹⁰ Form 8962 compares those advance payments against the credit your actual income entitled you to.

If your income came in higher than the estimate, your real credit is smaller and you owe the difference. Starting with tax year 2026, you owe the full amount, dollar for dollar, with no repayment cap.² If your income was lower than projected, your credit is larger than what was paid in advance, and the extra flows into your refund.

Skipping the form is not an option. Electronic returns filed without Form 8962 are rejected outright. Paper returns may go through at first, but the IRS will follow up with a letter requesting the form, and any refund you are owed is held until you send it in.¹¹

Report Life Changes as They Happen

Since repayment caps no longer cushion an inaccurate income estimate, telling the Marketplace about changes quickly matters more than it used to. Report a raise, a new job, a marriage or divorce, a birth or adoption, a move to a new ZIP code, gaining or losing employer coverage, or becoming eligible for Medicaid as soon as it happens.¹² The Marketplace recalculates your credit and adjusts your advance payments going forward, which shrinks the gap you would otherwise settle at tax time.

Lump-sum payments count too. Social Security back pay, a retirement distribution, or a large bonus can push your household income into a higher band and reduce the credit you qualify for.¹³ Not reporting higher income does not change what you eventually owe. It just delays the bill until filing, when the entire excess hits your return at once.¹⁴

How and When to Enroll

You can only sign up for Marketplace coverage during specific windows. Open Enrollment runs from November 1 through January 15. Enroll or change plans by December 15 for a January 1 start date. Enrollments from December 16 through January 15 take effect February 1.¹⁵

Outside that window, you need a qualifying life event to trigger a Special Enrollment Period, which generally gives you 60 days from the event to sign up. Qualifying events include losing job-based insurance, aging off a parent’s plan at 26, losing Medicaid or CHIP eligibility, getting married or divorced, having or adopting a child, moving to a different ZIP code or county, becoming a U.S. citizen, or leaving incarceration.¹⁶

Applications go through HealthCare.gov, or your state’s own Marketplace if it operates one.¹⁷ You’ll need Social Security numbers and dates of birth for everyone applying, a projected 2026 income figure for the household, employer coverage details if anyone has access to a job-based plan, and immigration documentation for lawfully present non-citizens.¹⁸ The income number matters most. It sets your advance payment amount, and any distance between that estimate and your real income lands on your tax return with no cap to soften it.

Once your application is processed, you’ll see your eligibility, your estimated credit, and the plans available to you. You decide how much of the advance credit to apply each month, from the full amount down to none of it. After you select a plan and pay your first premium, coverage begins on the applicable start date.

1
Office of the Law Revision Counsel. 26 USC 36B – Refundable Credit for Coverage Under a Qualified Health Plan
2
Internal Revenue Service. Updates to Questions and Answers About the Premium Tax Credit
3
HHS Office of the Assistant Secretary for Planning and Evaluation. 2026 Poverty Guidelines – Detailed Guidelines
4
Internal Revenue Service. Publication 974 – Premium Tax Credit
5
Internal Revenue Service. Eligibility for the Premium Tax Credit
6
HealthCare.gov. Second Lowest Cost Silver Plan (SLCSP) – Glossary
7
Internal Revenue Service. Revenue Procedure 2025-25 – Applicable Percentage Table for 2026
8
Bipartisan Policy Center. Enhanced Premium Tax Credits: Who Benefits, How Much, and What Happens Next?
9
Internal Revenue Service. Instructions for Form 8962 (2025)
10
Internal Revenue Service. Reconciling Your Advance Payments of the Premium Tax Credit
11
Internal Revenue Service. How to Correct an Electronically Filed Return Rejected for a Missing Form 8962
12
CMS. Report Life Changes When You Have Marketplace Coverage
13
CMS. Life Changes That May Affect APTC
14
Internal Revenue Service. Premium Tax Credit: Claiming the Credit and Reconciling Advance Credit Payments
15
HealthCare.gov. When Can You Get Health Insurance?
16
HealthCare.gov. Qualifying Life Event (QLE)
17
HealthCare.gov. How to Apply and Enroll
18
Centers for Medicare & Medicaid Services. My Marketplace Application Checklist