Somewhere in Houston right now, someone is having a good month. A promotion came through at a plant in Deer Park. A contractor in Spring picked up three more jobs than expected. A nurse in the Medical Center started pulling overtime shifts. A rideshare driver had a strong summer. None of these people are doing anything wrong. Most of them will not think about their health insurance at all until next April — and that is exactly when it will become a problem.
If you buy your coverage through the Health Insurance Marketplace and you take an advance premium tax credit to lower your monthly bill, the credit you receive all year is based on the income you estimated back when you enrolled. At tax time, the IRS compares that estimate against what you actually earned. If you took more credit than your final income entitled you to, you pay the difference back.
For years, there was a guardrail. Households below 400% of the federal poverty line had their repayment capped, so an honest mid-year income increase produced an annoying bill rather than a catastrophic one. That guardrail is gone. In its own guidance, the IRS now states plainly: “There is no repayment cap for tax years after 2025. For tax years after 2025, you must repay the full amount by which your advance credit payments exceed your Premium Tax Credit.”
That single sentence changes the math for every Marketplace household in Harris County. Reporting an income change used to be good hygiene. For 2026, it is the difference between a small adjustment now and an unbounded bill in April.
- The repayment cap is eliminated for tax year 2026 and later. The IRS states you must repay the full amount by which your advance credit payments exceed the credit you actually qualified for.
- Report changes as soon as they happen. HealthCare.gov’s instruction is to update your application “as soon as possible” — not at renewal, and not at tax time.
- Income is not the only reportable change. Household size, a job-based coverage offer, a move, and gaining Medicare or Medicaid all affect what you qualify for.
- Crossing 400% of the federal poverty line is the sharpest edge. In 2026 that is $63,840 for one person and $132,000 for a family of four. Above it, the credit ends — and with no cap, the whole year’s advance payments become repayable.
- Not filing is worse than owing. The IRS is explicit: if advance payments were made for you and you do not file a return, you will not be eligible for advance credit payments in future years.
- Reporting a drop in income helps you too. Lower income can mean a larger credit, or eligibility for Medicaid or CHIP for your children.
What This Guide Covers
- How the advance premium tax credit actually works
- What changed for 2026: the repayment cap is gone
- The 400% edge, and the 2026 income numbers
- What you need to report — not just income
- A Houston worked example
- Form 1095-A, Form 8962, and why filing matters
- When your income goes down instead
- Frequently asked questions
How the advance premium tax credit actually works
The mechanics are worth understanding, because almost every expensive surprise comes from misunderstanding one specific step.
When you apply for Marketplace coverage, you estimate what your household will earn for the coming calendar year. The Marketplace uses that estimate to calculate a premium tax credit. You can take that credit in advance — paid directly to your insurance company each month, lowering what you pay out of pocket. That is the advance premium tax credit, or APTC, and the overwhelming majority of enrollees use it that way.
The key point: the advance payment is a prediction, not a final determination. The final determination happens on your tax return, when your actual income for the year is known. The IRS calls this reconciliation. If your actual income was lower than estimated, you qualified for more credit than you received, and the balance comes back to you. If your actual income was higher, you received more credit than you qualified for, and you repay the difference.
What changed for 2026: the repayment cap is gone
Until now, the tax code limited how much excess advance credit most households had to pay back. The limitation scaled with income: the lower your household income relative to the federal poverty line, the smaller the maximum you could be asked to repay. Above 400% of the poverty line, no limitation applied and repayment was already unlimited.
For tax years after 2025, the limitation is gone entirely. The IRS’s guidance states it in one line: “There is no repayment cap for tax years after 2025. For tax years after 2025, you must repay the full amount by which your advance credit payments exceed your Premium Tax Credit.”
| Situation | Tax years through 2025 | Tax year 2026 onward |
|---|---|---|
| Income ends up modestly higher than estimated, household under 400% FPL | Repayment limited by a cap that scaled with income | Repay the full excess, no limit |
| Income ends up substantially higher, household still under 400% FPL | Repayment limited by the same cap | Repay the full excess, no limit |
| Income crosses 400% FPL | No cap applied — full repayment | No cap applied — full repayment |
| Income ends up lower than estimated | Additional credit refunded on your return | Additional credit refunded on your return |
| You do not file a return at all | Lose eligibility for future advance payments | Lose eligibility for future advance payments |
Read the middle rows again. Under the old rules, a household that underestimated its income by a meaningful margin still had a ceiling on the damage. That ceiling no longer exists. A family that received advance credits all year and ended up earning considerably more than they projected now repays every dollar of the excess.
The 400% edge, and the 2026 income numbers
There is a second reason 2026 is a higher-stakes year, and it compounds with the first.
The enhanced premium tax credits that had been in place through 2025 are no longer in effect. That restored the original structure of the credit, in which eligibility ends above 400% of the federal poverty line. Below that line you may qualify for a credit; above it, you do not. We covered what that means for households who land on the wrong side of it in Over the 400% Subsidy Cliff in Houston? and in our guide to the 2026 premium tax credit cliff.
Now put the two facts together. If your income rises above 400% FPL during the year, you were not eligible for any premium tax credit for that year — and there is no cap on repaying what you already received. That is the scenario that turns a good year at work into a four-figure tax bill.
Here is where that line sits for 2026, using the federal poverty guidelines published by HHS for the 48 contiguous states:
| Household size | 100% FPL | 200% FPL | 300% FPL | 400% FPL (the edge) |
|---|---|---|---|---|
| 1 person | $15,960 | $31,920 | $47,880 | $63,840 |
| 2 people | $21,640 | $43,280 | $64,920 | $86,560 |
| 3 people | $27,320 | $54,640 | $81,960 | $109,280 |
| 4 people | $33,000 | $66,000 | $99,000 | $132,000 |
| 5 people | $38,680 | $77,360 | $116,040 | $154,720 |
| 6 people | $44,360 | $88,720 | $133,080 | $177,440 |
What you need to report — not just income
Income gets the attention, but several other changes move your eligibility, and some of them require action beyond a simple update. HealthCare.gov’s guidance is direct: if you are enrolled in a Marketplace plan and your income or household changes, update your application as soon as possible.
| Change | Why it matters | What it can affect |
|---|---|---|
| Raise, promotion, or new job | Raises your annual household income above the estimate on file | Reduces your credit; excess advance payments become repayable |
| Overtime, bonuses, or a strong contract year | Self-employed and hourly income is the most commonly underestimated | Same as above, and often larger because it accumulates quietly |
| Losing a job or reducing hours | Lowers household income | May increase your credit, or open Medicaid or CHIP eligibility |
| Marriage or divorce | Changes household size and combined income | Changes both the credit calculation and who is on the policy |
| A birth or adoption | Adds a household member | Raises your FPL thresholds and may qualify the child for CHIP or Medicaid |
| A job-based coverage offer | An offer of affordable employer coverage can end credit eligibility | May require you to cancel Marketplace coverage |
| Turning 65 or starting Medicare | Medicare and Marketplace credits do not overlap | Requires cancelling the Marketplace plan |
| Moving | Plans and pricing are set by rating area | Changes available plans; a move can also open a Special Enrollment Period |
Two of these deserve extra attention in Houston. The first is a job-based coverage offer. If an employer offers coverage the law considers affordable and adequate, you generally cannot claim a premium tax credit for that period — even if you decline the employer plan and stay on your Marketplace plan. The household version of this rule was changed a few years ago, and we walked through how it works now in The ACA “Family Glitch” Fix.
The second is turning 65. Marketplace coverage and Medicare are not meant to run in parallel, and continuing to take an advance credit after Medicare begins creates exactly the reconciliation problem this article is about. If you are approaching 65 while on a Marketplace plan, our guide to the bridge-to-Medicare year lays out the handoff.
A Houston worked example
Consider a household of four in northwest Harris County. At open enrollment they estimated $60,000 for the year — about 182% of the 2026 federal poverty line for a family of four. Based on that, the Marketplace calculated a premium tax credit and paid it in advance to their insurer every month.
In April, one spouse changed jobs for a significant raise. In the summer, the other picked up steady overtime. By December, actual household income for the year came in around $85,000 — roughly 258% of the poverty line. Nothing improper happened. They simply had a better year than they expected in November of the prior year.
At 258% FPL they were still eligible for a credit — just a considerably smaller one than they had been receiving all year, because the credit shrinks as income rises. The gap between what was paid on their behalf and what they actually qualified for is the excess. Under the pre-2026 rules, a household at that income level would have had that repayment capped. For tax year 2026, they repay all of it.
Had this household logged into their Marketplace account in April and updated the estimate, the credit would have been recalculated from that point forward. Their monthly premium would have risen — that part is unavoidable, because they genuinely qualified for less. But the reconciliation in April would have been small instead of a full year’s worth of over-payment landing at once.
Had an income change this year? Let’s update it properly.
We help Houston households update Marketplace applications the right way — so your credit matches your actual income and April holds no surprises. Independent, Texas-licensed, and no cost to you to talk it through.
Talk to a licensed Houston agent 832-400-6538Form 1095-A, Form 8962, and why filing matters
Every household that had Marketplace coverage receives a Form 1095-A, the Health Insurance Marketplace Statement. It shows, month by month, the premium for your plan, the premium for the benchmark plan used in the credit calculation, and the advance credit paid on your behalf.
You use that form to complete Form 8962, which reconciles the advance payments against the credit you actually qualified for. The IRS is direct about the requirement: if advance credit payments were made for you or anyone in your tax family, you must file Form 8962 to reconcile them.
What happens if you skip it is the part people underestimate. In the IRS’s own words: “If APTC is paid on behalf of you or an individual in your family, and you do not file a tax return, you will not be eligible for APTC to help pay for your Marketplace health insurance coverage in future years.”
A practical note on timing: your 1095-A generally arrives early in the year for the prior year’s coverage. Check it against your own records before you file. If the figures look wrong — a month you were not covered, a household member listed incorrectly — that gets corrected with the Marketplace, and it is far easier to fix before a return is filed than after.
When your income goes down instead
The whole conversation so far has been about income going up, because that is where the financial risk sits. But the reporting rule runs both ways, and the upside is real.
If your income drops — reduced hours, a layoff, a business slowdown, a seasonal contraction — reporting it promptly can increase your premium tax credit for the rest of the year. HealthCare.gov notes that a lower income estimate or a larger household could qualify you for more savings than you are currently getting.
It can also open a different door entirely. Below certain thresholds, household members may qualify for Medicaid, and children may qualify for the Children’s Health Insurance Program. In Texas the children’s thresholds are considerably more generous than the adult ones, which means a family can be over the line for adult Medicaid while their kids qualify comfortably. If you have children on your Marketplace plan and your income has fallen, that is worth checking — we cover the Texas thresholds in detail in our guide to children’s health coverage in Harris County.
The same logic applies if you lost Texas Medicaid and landed on a Marketplace plan — that transition has its own rules, which we covered in Lost Texas Medicaid? Your Special-Enrollment Path to a Marketplace Plan.
How to actually report a change
The process itself is not complicated. Log into your Marketplace account, open your application, and select the option to report a life change. You update the affected information — income, household members, coverage offers — and the system recalculates your eligibility. You then get the chance to keep your current plan at the new credit amount or select a different one if the change opened a Special Enrollment Period.
The part that trips people up is the income question itself. The Marketplace asks for expected income for the full calendar year, not your current monthly rate. If you got a raise in April, the right answer is not your new salary annualized — it is what you now expect the whole year to total, blending the months before and after. Getting that arithmetic right is most of the work, and it is a reasonable thing to ask for help with.
Frequently asked questions
Is there still a cap on how much premium tax credit I have to pay back?
How quickly do I need to report an income change to the Marketplace?
What income figure does the Marketplace want?
What is the income limit for a premium tax credit in 2026?
What happens if I do not file a tax return?
Do I have to report a change if my income went down?
My employer offered me health insurance mid-year. Does that matter?
What is Form 1095-A and what do I do with it?
Sources
- Internal Revenue Service, “Questions and Answers on the Premium Tax Credit” (see Q28 and Q31) — irs.gov
- Internal Revenue Service, “Premium Tax Credit: Claiming the credit and reconciling advance credit payments” — irs.gov
- Internal Revenue Service, “About Form 8962, Premium Tax Credit” — irs.gov
- Internal Revenue Service, “Reconciling your advance payments of the Premium Tax Credit” — irs.gov
- HealthCare.gov, “Reporting income and household changes after you’re enrolled” — healthcare.gov
- U.S. Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation, “2026 Poverty Guidelines: 48 Contiguous States” — aspe.hhs.gov
- Federal Register, “Annual Update of the HHS Poverty Guidelines,” January 15, 2026 — federalregister.gov
This article is for general educational purposes and is not tax advice. Federal figures reflect guidance published as of August 2026. Your premium tax credit, repayment amount, and filing obligations depend on your specific household, plan, and return; consult a qualified tax professional about your situation. Wise Insurance Agency is an independent, Texas-licensed insurance agency.