Covered California affects your tax return by tying every dollar of premium assistance you received during the year to your actual income when you file. You reconcile the advance premium tax credit on federal Form 8962 and any state subsidy on California Form FTB 3849, and if your income came in higher than you estimated, you owe some or all of that assistance back. Starting with the 2026 tax year, the federal cap that used to limit how much you’d repay is gone, so the stakes are higher than they’ve ever been.
Forms You’ll Receive and Forms You’ll File
Two forms arrive from Covered California. Federal Form 1095-A lists your monthly enrollment premiums, the advance premium tax credit (APTC) paid to your insurer each month, and the cost of the benchmark Second Lowest Cost Silver Plan in your area. It usually appears in your online Covered California account between mid-January and early February and arrives by mail by mid-February.1HealthCare.gov. How to Reconcile Your Premium Tax Credit California Form FTB 3895 is the state counterpart and reports the same monthly premium and benchmark data along with any California Premium Assistance Subsidy paid on your behalf.2Franchise Tax Board. California Form 3895 – California Health Insurance Marketplace Statement
Two forms go out with your returns. Federal Form 8962 is where reconciliation happens: you transfer numbers from your 1095-A, calculate the credit you were truly entitled to based on your final income, and figure out whether you owe money back or get an additional credit.3Internal Revenue Service. About Form 8962, Premium Tax Credit If advance state subsidy payments were made on your behalf, California Form FTB 3849 does the same thing on your state return.4Franchise Tax Board. Instructions for Form FTB 3849, Premium Assistance Subsidy
If numbers on your 1095-A or FTB 3895 look wrong, don’t file with bad data. Covered California has an online dispute form for corrections; for errors limited to demographic information like your name or Social Security number, you can correct those directly on your return.5Covered California. Report a Tax Form Error
How Reconciliation Actually Works
When you enrolled, you estimated your income for the year. Covered California used that estimate to calculate your advance premium tax credit and sent it to your insurer each month to lower what you paid. Reconciliation is the comparison between those advance payments and the credit you actually qualify for based on your real income.6Internal Revenue Service. Reconciling Your Advance Payments of the Premium Tax Credit
If your income came in lower than your estimate, you qualified for a bigger credit than you received during the year. The difference shows up as an additional refund or a reduction in what you owe. Most people are happy to land on this side.
If your income came in higher, the advance payments exceeded what you were entitled to, and you owe the difference back. That excess gets added to your federal tax bill.7HealthCare.gov. Reconcile This is the scenario that catches people off guard, and the amount can be substantial.
The Federal Repayment Cap Is Gone Starting in 2026
This is the single biggest change for Covered California enrollees. For tax years through 2025, federal law limited how much you had to repay if you received excess advance credits. A single filer earning below 200% of the federal poverty level, for example, owed back no more than $375 regardless of how large the overpayment was.8Internal Revenue Service. Instructions for Form 8962
Starting with the 2026 tax year, those caps no longer exist. Public Law 119-21 struck the repayment limitation from the tax code entirely, effective for tax years beginning after December 31, 2025.9Office of the Law Revision Counsel. 26 USC 36B – Refundable Credit for Coverage Under a Qualified Health Plan If your advance credits exceeded your actual entitlement by $3,000, you owe back $3,000. There is no cushion, no sliding scale, no maximum. This applies at every income level.
Income estimates matter far more now than they did before. A raise, a side gig, or investment income you didn’t anticipate could turn into a four-figure tax bill.
The 400% Income Cliff Is Back
From 2021 through 2025, Congress temporarily removed the income ceiling for premium tax credit eligibility, and even households earning well above 400% of the federal poverty level could receive some subsidy. That expansion expired at the end of 2025 and was not renewed.10Congressional Research Service. Enhanced Premium Tax Credit and 2026 Exchange Premiums
For 2026, the income cap is back at 400% FPL. If your household income exceeds that threshold, you are not eligible for any premium tax credit.11Internal Revenue Service. Questions and Answers on the Premium Tax Credit Combined with the elimination of repayment caps, this creates a painful scenario. If you received advance credits all year and your income lands above 400% FPL, you owe back every dollar with no limit.
Households near that 400% line should be especially careful with their income estimates and should update Covered California immediately if their income rises during the year.
Report Income and Household Changes Within 30 Days
The best way to avoid a large reconciliation bill is to keep your information current. Covered California requires you to report changes within 30 days.12Covered California. Updating Your Income The sooner you report an income increase, the sooner the marketplace can adjust your advance credits downward, and the less you’ll owe at tax time.
Changes to report include:
- Income changes: a raise, new job, lost job, starting or ending self-employment, or investment gains that differ from your original estimate
- Family size changes: marriage, divorce, having or adopting a child, a death in the family, or gaining or losing a dependent
- Coverage changes: becoming eligible for employer coverage, Medicare, or Medi-Cal, or a household member turning 26 and losing a parent’s plan
- Other changes: moving to a new address, a change in tax filing status, or a change in immigration status
You can report changes by calling Covered California at (800) 300-1506, through your online account, or with a certified enrollment counselor. Qualifying life events like marriage or the birth of a child also open a 60-day special enrollment period if you need to change plans.13Centers for Medicare & Medicaid Services. Report Life Changes When You Have Marketplace Coverage
California’s Individual Mandate Penalty
California still enforces an individual mandate. If you or anyone in your household went without qualifying health coverage for any part of the year and don’t qualify for an exemption, a penalty is assessed on your state return.14California Legislative Information. California Code Revenue and Taxation Code 61000
The penalty is the higher of two calculations. The flat dollar amount for the 2025 tax year is $950 per uninsured adult and $475 per child under 18, adjusted upward each year for cost of living, so 2026 figures will be at least this much.15Franchise Tax Board. Personal Health Care Mandate The alternative is 2.5% of your gross household income above the state tax filing threshold.16California Legislative Information. California Code Revenue and Taxation Code 61015 The total is capped at the cost of the statewide average bronze plan premium for your household size.
A coverage gap of three consecutive months or less is automatically exempt. Other common exemptions cover income below the filing threshold, unaffordable coverage (where the cheapest available plan would have cost more than 8.27% of household income for 2025), tribal membership, incarceration, and approved hardship or religious conscience claims. The Franchise Tax Board publishes the full list.15Franchise Tax Board. Personal Health Care Mandate
California Has Its Own Premium Subsidy Too
Beyond the federal credit, California funds its own premium assistance for lower-income enrollees. For 2026, the California Premium Subsidy provides additional help for households earning up to 165% of the federal poverty level.17Covered California. 2026 California State Premium Subsidy Program Like the federal credit, it is paid in advance to your insurer and reconciled on your California return using Form FTB 3849. Unlike the federal system, the California subsidy still has repayment caps based on income, so there is a limit on what you’d owe back for the state portion.
What Happens If You Skip Form 8962
If the IRS knows you received advance premium tax credits and you e-file without Form 8962, your return will be rejected. It won’t be accepted until you include the form.18Internal Revenue Service. How to Correct an Electronically Filed Return Rejected for a Missing Form 8962 Paper returns are accepted, but the IRS follows up by mail requesting the missing form. Failing to reconcile can cost you eligibility for advance premium tax credits in future years, meaning you’d have to pay full premiums out of pocket and claim the credit as a lump sum when you file. Form 8962 is not optional if you received any advance credits, even when you’re confident the amounts were correct.