Most people who buy a Marketplace plan think of the subsidy as a regular discount. It comes off the monthly premium, the bill looks smaller, and life moves on. What very few people are told upfront is that the subsidy isn’t really a discount at all. It’s a calculation based on what you expected to earn for the year, and if you ended up earning more than that estimate, the IRS expects part of it back.

According to the most recent IRS filing season data, 6,391,741 tax returns had to report Excess Advance Premium Tax Credit Repayment. That’s the IRS’s official line for “your projected income was too low, so you owe back some of the subsidy you received.” For each of those 6.4 million households, the consequence was the same: a smaller refund, or a larger tax bill, than they were expecting.

In this guide, I’ll walk you through how this happens, why the rules changing for 2026 plans make it worse, and what you can actually do right now if your income is already trending higher than what you projected at open enrollment. This is one of the largest tax-time surprises in the country, and most of the people it hits never saw it coming.

Quick Check: Which Side Are You On?

Before we get into the details, four yes-or-no questions to point you in the right direction.

Are you currently on a 2026 Marketplace plan and receiving a subsidy? Then the rest of this article applies to you directly. Your subsidy is based on a projection, and it gets reconciled at tax time next April.

Is your income already tracking higher than what you reported at open enrollment? You shouldn’t wait until tax season. Switching to private coverage mid-year stops the excess subsidy from continuing to build up against you.

Have you been hit with a Marketplace repayment at tax time before? That wasn’t bad luck. It’s how the structure works, and the 2026 rules make a repeat surprise more expensive, not less.

Are you currently being treated for a significant medical condition? The Marketplace’s guaranteed-issue protection is genuinely valuable. The income trap may be the lesser risk for your situation. Stay on the Marketplace, but go in with eyes open.

If you answered “yes” to either of the middle two questions, the next twenty minutes of reading could save you a four- or five-figure repayment bill.

How Marketplace Subsidies Actually Work

When you enroll in a Marketplace plan, you give Healthcare.gov an estimate of what you’ll earn for the year. That number determines your subsidy, which is officially called the Advance Premium Tax Credit (APTC). The word “advance” is the part most people miss. The IRS is essentially fronting you the credit during the year, on the assumption that your income guess will be accurate.

When tax season comes around, you reconcile that advance against what you actually earned. That reconciliation happens on IRS Form 8962. If you earned less than you projected, you may get a little extra credit back. If you earned more, you pay part of it back. HealthCare.gov walks through this directly, and the IRS Premium Tax Credit overview puts it plainly: if you received more advance credit than you qualified for, “you may have to add some or all of the excess amount to your tax liability.”

In simple words: smaller refund, or larger bill.

For someone on a steady W-2 paycheck, the estimate is usually close enough that the reconciliation is small. For self-employed people, freelancers, contractors, and small business owners whose income naturally swings, the estimate is essentially a forecast. A good year and the subsidy you received in advance becomes money you owe back.

Why 6.4 Million Households Got Caught This Year

A few things make this trap so common.

First, most people don’t realize the subsidy is even reconciled. They sign up, see a lower premium, and assume that’s the end of it. The Form 8962 paperwork comes up months later in tax season, and by then the connection between “my income was higher than I thought” and “I owe the IRS money” isn’t always obvious.

Second, income for self-employed people is hard to forecast a year in advance. You might project conservatively in November during open enrollment, then close a strong Q3, take on a new client, or sell a business asset you weren’t planning to sell. None of that is bad news — it just becomes a tax surprise.

Third, the rules around repayment caps have changed before, and they’re changing again. Most people don’t track which year has which limits. Which brings us to the part of this story that matters most for anyone currently on a 2026 plan.

Why 2026 Plans Make This Worse

For plan years through 2025, federal rules included caps on how much subsidy you could be required to repay. Those caps weren’t perfect, but they put a ceiling on how badly an income surprise could hurt you at tax time.

Starting with the 2026 plan year, those repayment caps are being eliminated. KFF covers this directly in their 2026 open-enrollment briefing, and their FAQ on subsidy repayment lays out what the change means in practice. HealthInsurance.org also explains the shift in plain language.

The short version: if you receive too much subsidy on a 2026 plan, you may be required to repay the full excess amount when you file taxes, with no cap protecting you.

For someone whose income comes in $5,000, $20,000, or $50,000 higher than projected, that’s a substantially bigger tax-time bill than the same surprise would have produced under the old rules. The 6.4 million number is what happened under the old caps. The exposure going forward is larger.

Why More Self-Employed People Are Looking at Private

I’ve been having this exact conversation with self-employed clients all year, and the question keeps coming back to the same thing: is there a way to get covered without making my health insurance dependent on a tax-season guess?

Yes. It’s called private (off-exchange) health insurance.

Private health insurance is sold directly by carriers and through independent agents, off the Marketplace entirely. The most important difference for anyone reading this article: once you’re approved, your income doesn’t matter. There’s no reconciliation, no Form 8962, no tax surprise in April if you have a strong year. Your premium is your premium.

That predictability is a big deal for self-employed people. It also closes the trap that 6.4 million households just walked into.

There’s a trade-off, and I want to be honest about it: private plans go through medical underwriting. The carrier reviews your health history when you apply. If you have a significant pre-existing condition, private may not be your best option, because Marketplace plans are guaranteed-issue and private plans typically aren’t. For somebody mid-treatment for a serious condition, the Marketplace’s protections genuinely matter, and the income trap is the lesser of two risks.

But for healthy self-employed people, freelancers, and small business owners with variable or growing income? Private is increasingly the smarter fit, exactly because the income piece becomes a non-issue once you’re approved. We wrote more about that comparison here: Best Health Insurance for Self-Employed: Marketplace or Private — How to Decide.

It’s Not Too Late to Switch If Your 2026 Income Is Already Looking Different

Here’s the part most people don’t know, and it’s the most useful thing in this entire article if you’re already on a 2026 Marketplace plan: you don’t have to wait for the next open enrollment to change course.

Private health insurance doesn’t follow the ACA’s open enrollment window. You can apply for private coverage at any time during the year. If you’re approved, you can cancel your Marketplace plan and stop receiving the advance subsidy from that point forward. The subsidy clock stops the day your Marketplace coverage ends.

That matters because every month you stay on a Marketplace plan with a subsidy that’s higher than what your actual income will qualify for, the excess builds up against you. A real example: if you’re a few months into the year and your income is already tracking $20,000 or $30,000 higher than you projected at open enrollment, the longer you stay on the Marketplace receiving the same advance subsidy, the larger your reconciliation bill becomes at tax time. Switching to private mid-year stops that meter. You only owe back the months you were actually on the Marketplace, not a full year.

The catch is the same one we’ve already covered: private requires medical underwriting. You apply, the carrier reviews your health history, and you have to be approved before you cancel your Marketplace plan. For reasonably healthy people, that process is usually quick. For someone with significant pre-existing conditions or in active treatment, the math is different and the Marketplace’s guaranteed-issue protection may still be the better fit.

The takeaway is simple. If you’re looking at your 2026 income and realizing it’s not going to match what you reported at open enrollment, you have options. Waiting until next April to find out how big the repayment bill is isn’t the only path.

Final Thoughts

Marketplace subsidies help a lot of families afford coverage. That’s real and worth saying out loud. The problem isn’t that subsidies exist. The problem is that the way they’re delivered — based on an income estimate that gets reconciled at tax time — works fine when your income is stable and creates real exposure when it isn’t.

For 6.4 million households this year, that exposure became a tax bill. Starting with 2026 plans, that same exposure has no cap on how big it can get.

The smart move is not to be afraid of the Marketplace. The smart move is to know how it actually works, decide whether your income shape fits the design, and look honestly at private options if it doesn’t.

Let’s Find the Right Plan for You

If you’ve already been caught by the Marketplace tax surprise, or you’re looking at your 2026 income and realizing it’s not going to match what you reported at open enrollment, I can help you compare your options. We can walk through the monthly cost, deductible, max out-of-pocket, network access, and your income outlook so you can choose a plan that fits the way your life actually works.

I’m a real licensed agent. Not a call center, not a 600-call-a-day vendor. Reach out and I’ll get back to you within one business day, usually faster.

Call (954) 501-5554

Info@Findcoverage.Net

Prefer to send details? Use the quote form on this page.

Thyrza de Oliveira is a licensed health insurance agent. NPN: 21702538. Licensed across multiple states. Verify any agent’s license at the National Insurance Producer Registry.

Sources & Further Reading

• IRS Filing Season Statistics — search “Excess advance premium tax credit repayment” — irs.gov
• IRS, Affordable Care Act (ACA) Statistics — irs.gov
• IRS, Premium Tax Credit (PTC) Overview — irs.gov
• IRS, About Form 8962 — irs.gov
• HealthCare.gov, Reconciling Your Premium Tax Credit — healthcare.gov
• KFF, 8 Things to Watch for the 2026 ACA Open Enrollment Period — kff.org
• KFF, What’s the Most I Would Have to Repay the IRS? — kff.org
• HealthInsurance.org, If Your Income Was Higher Than Expected — healthinsurance.org