Buying ACA Coverage as a Business Owner? The Cap on Repaying Excess Subsidies Is Gone

Many owners without an employer plan buy health insurance through the ACA marketplace and take the premium tax credit in advance, which lowers the monthly bill. The catch is that the credit is based on an income estimate, and a business owner's income is rarely predictable. In mid-October 2026, Treasury and the IRS proposed regulations that make that gap more expensive: they conform the rules to a change in federal law that eliminated the caps on how much excess advance credit a taxpayer must pay back.

The IRS announced the proposal on October 14, 2026 (news release IR-2026-121), and it was published in the Federal Register. Comments are due November 30, 2026. Here is what the proposal says, who it touches and what a business owner can do before the year ends.

What the IRS Proposed

The proposed regulations (REG-101576-26) implement changes to the premium tax credit under section 36B made by H.R. 1, the law the IRS refers to as the Working Families Tax Cuts law. The proposal covers three areas: eligibility and verification, marketplace reporting, and repayment of excess advance credits.

Treasury Secretary Scott Bessent said in the release that "hardworking American taxpayers should not be forced to subsidize health care for people who are ineligible under federal law." The IRS says the aim of the added verification is to curb improper claims.

The Repayment Cap Is Repealed

Here is the part that matters most to a business owner whose income moves around. Under the previous rules, some taxpayers who received more advance credit than they ultimately qualified for had income-based limits on how much they had to repay. According to the Journal of Accountancy's summary of the proposal, H.R. 1 eliminates those caps for tax years beginning after December 31, 2025, and the proposed regulations conform to that change.

That means the 2026 tax year, the one you will file in 2027, is the first year the repayment limits no longer apply. Treasury and the IRS estimate that about 3.7 million returns in 2028 will include an excess advance credit repayment.

The source summaries do not single out self-employed taxpayers, so it is fair to say the proposal is not written for business owners specifically. But the mechanics fit them closely. The credit is calculated from projected household income. If a good second half of the year pushes your actual income above what you told the marketplace in January, the difference between the credit you received and the credit you earned is the amount you owe back at tax time. Without a cap, that difference is repaid in full.

Stricter Verification Is Coming

The proposal also tightens the front door. Under the proposed rules, a month generally would not count as a coverage month for the credit unless the exchange verifies the required enrollment information. For people receiving advance credits, the exchange would verify:

• Household income
• Family size
• Eligibility for other minimum essential coverage
• Where applicable, "eligible-alien" status

The enrollment verification requirement applies for tax years beginning after December 31, 2027. HHS is expected to issue parallel proposed regulations on exchange procedures and operations.

Who Else the Proposal Touches

Several other provisions are worth knowing about if you have employees, family members or partners on a marketplace plan:

• Eligibility limits. Premium tax credit eligibility would be restricted to U.S. citizens, U.S. nationals and certain lawfully present noncitizens. Premiums attributable to lawfully present individuals who are not eligible aliens must be excluded when calculating the credit, beginning with tax years after December 31, 2026.
• Immigrant provision repealed. The rule that let certain lawfully present immigrants under 100% of the federal poverty level qualify was repealed for tax years beginning after December 31, 2025.
• Medicaid community engagement. People who would otherwise qualify for Medicaid but fail community-engagement requirements are generally treated as eligible for Medicaid coverage, which makes them ineligible for the credit in those months. Community engagement can include work, school enrollment, or a work program or community service of at least 80 hours a month.

Treasury and the IRS estimate the rules could affect about 5.6 million people enrolled in exchange coverage, among 13.5 million enrollees potentially eligible to claim the credit.

What a Business Owner Can Do Before December 31

1. Re-run your income estimate now

Pull your year-to-date profit and loss and project the rest of the year. If your income will land materially above what you reported to the marketplace, you have time to act. Your profit and loss statement is the right starting point, since net self-employment income is what drives the estimate.

2. Update the marketplace if your income changed

You can report changes to the marketplace during the year, which adjusts the advance credit going forward. Reducing the advance for the remaining months is less painful than repaying the whole difference in April. Ask your marketplace or a tax professional how to make the change for your situation.

3. Watch your year-end moves

Equipment purchases, retirement contributions and timing of invoices can all change net income. Because the repayment is no longer limited by income-based caps, the effect of a late-year income swing is larger than it used to be. Coordinate with your tax preparer before you make year-end decisions, not after.

4. Keep clean records

With verification tightening, expect the marketplace to ask for more documentation over time. Keep a clear record of your income sources, household members and any other coverage offered to you. If your business entity choice affects how you pay yourself, our guides on LLC vs S corp and business bank accounts explain how separating business and personal finances makes that documentation easier.

5. Revisit the coverage decision itself

If you have employees, the economics of offering coverage versus sending people to the marketplace shift when the repayment cap goes away. Our guide to business insurance is a place to start, and a benefits broker can model your options.

What Is Still Unsettled

These are proposed regulations. They are not final, and the November 30, 2026 comment deadline means the text could change. The IRS release and the secondary summaries do not give a hearing date. The repeal of the repayment caps comes from the statute itself rather than from the proposed regulations, so it applies regardless of how the rulemaking ends. The verification details depend partly on HHS rules that had not been published at the time of the IRS announcement.

Also, the source material does not say how many business owners are affected, so any claim about the number of self-employed filers who will owe money would be a guess.

The Bottom Line

If you buy coverage on the marketplace and your income is hard to predict, the safest assumption for the 2026 tax year is that any excess advance credit is owed in full. You have about two months to bring your income estimate in line with reality, and a short call with your tax preparer now is cheaper than a surprise bill in the spring.

This article is general information, not tax or legal advice. Consult a qualified tax professional about your situation.

Photo by National Cancer Institute on Unsplash