What are the new premium tax credit rules under OBBBA?
Every open enrollment season, a client walks into our Los Angeles office with the same question. They bought a marketplace health plan, took the advance credit each month to lower the premium, and now the Form 1095-A has arrived and the Form 8962 math is not matching what they expected. For 2026 and 2027 returns, that conversation is about to get harder. The premium tax credit is being rewritten. On Oct. 15, 2026, the IRS and Treasury published proposed regulations (REG-101576-26) implementing changes Congress enacted in H.R. 1, P.L. 119-21, commonly called OBBBA. The proposal is long and technical, but the practical effects fall on three groups of taxpayers in a way that is easy to describe. This post walks through what changed, when each change applies, and what to do before the next return or the Nov. 30 comment deadline.
What exactly did OBBBA change about the premium tax credit? 📜
H.R. 1 repealed the dollar cap on repayment of excess advance credits, tightened marketplace verification, and narrowed eligibility for several categories of lawfully present immigrants. The proposed regulations put those statutory changes into the Section 36B regulations.
The underlying credit still lives in Internal Revenue Code Section 36B. It is a refundable federal credit for a taxpayer whose household income falls within a specified range and who enrolls through a marketplace exchange in a qualified health plan that is not treated as affordable employer coverage or Medicaid. Most households take it in advance — the exchange reduces the monthly premium — and reconcile on Form 8962 at filing. The proposed regulations do not change that basic mechanic. What they change is how much flexibility a household has when the advance estimate is wrong, how carefully the exchange has to verify eligibility before the credit flows, and which lawfully present individuals the credit can be computed on.
Treasury and the IRS estimated the regulations could affect about 5.6 million individuals enrolled in exchange coverage, including roughly 13.5 million enrollees potentially eligible to claim the credit. The comment period for the proposal closes Nov. 30, 2026.
How does the repeal of the excess advance premium tax credit cap work? 💵
For tax years beginning after Dec. 31, 2025, the dollar cap on repayment of excess advance premium tax credit is gone. If actual household income comes in higher than the exchange estimate, the full excess is owed back with the return.
Under the old rules, taxpayers whose actual household income was below 400% of the federal poverty level were protected by an income-based repayment cap when they had to pay back excess advance credits. H.R. 1 repealed that limit for tax years beginning after Dec. 31, 2025, and the proposed regulations conform the regulations to the statute. Treasury and the IRS estimated that about 3.7 million 2028 returns will include a repayment of excess advance credits — a figure that is not far from the real-world size of the shift.
Mechanically, the amount of advance credit the exchange paid still appears on Form 1095-A. The taxpayer still reconciles on Form 8962. What changes is the final line. For a household that under-reported income to the exchange by, say, $20,000, the removal of the cap can turn what used to be a modest repayment into a full refund-killer or a four-figure balance due.
In our practice: update the exchange application mid-year, not at filing
The households that are hurt by the cap repeal are not the ones with careful projections. They are the ones with a bonus, a side business that took off, a spouse who went back to work, or a 401(k) distribution they did not plan to take. A ten-minute update to the exchange application during the year has always been the right move. After 2025 it is the only move — there is no cap to catch the miss at filing.
What new verification rules apply to the premium tax credit after 2027? 🔍
For tax years beginning after Dec. 31, 2027, a month is generally not a premium tax credit coverage month unless the exchange verifies the required enrollment information. For advance-credit recipients, that includes household income, family size, other minimum essential coverage, and eligible-alien status.
The proposal implements H.R. 1 provisions that condition the credit on marketplace verification, rather than on the taxpayer’s unsupported attestation. For an individual receiving advance credits, the exchange has to verify household income, family size, eligibility for other minimum essential coverage, and, when applicable, eligible-alien status. Treasury has said that the matching changes needed at the exchange side are expected to be addressed in parallel proposed regulations issued by the Department of Health and Human Services.
A verification gap can cost a whole month of credit
Under the new rule, if the exchange cannot verify the required information for a given month, that month generally does not count as a premium tax credit coverage month at all. This is a shift from the current pattern, where the taxpayer’s good-faith attestation at the exchange and reconciliation on Form 8962 did most of the work. From 2028 forward, the paper trail matters each month, not only at filing.
Corresponding reporting changes affect Form 1095-A. For advance-credit recipients, exchanges have to exclude from reported enrollment premiums and benchmark premiums the amounts allocable to individuals who are not lawfully present or who are lawfully present but not eligible aliens. That is a technical change to the form that CPAs preparing Form 8962 will see from 2027 onward.
How does the proposal change eligibility by immigration status? 🛂
For tax years beginning after Dec. 31, 2026, taxpayers generally have to exclude premiums attributable to individuals who are lawfully present in the United States but not eligible aliens under Section 36B(e)(2)(B). The old poverty-level rule for certain lawfully present immigrants is also removed for tax years beginning after Dec. 31, 2025.
| Change | Effective | What it means |
|---|---|---|
| Repeal of excess APTC repayment limit | Tax years beginning after Dec. 31, 2025 | Full excess advance credit must be repaid with the return — no income-based cap. |
| Exchange verification required for coverage month | Tax years beginning after Dec. 31, 2027 | Month only counts as a PTC coverage month if exchange verifies required enrollment info. |
| Lawfully present non-eligible aliens excluded from credit math | Tax years beginning after Dec. 31, 2026 | Premiums allocable to those individuals must be excluded in the household’s PTC calculation. |
| Repeal of credit for certain lawfully present immigrants below 100% FPL | Tax years beginning after Dec. 31, 2025 | Old rule covering immigrants ineligible for Medicaid because of status is removed. |
| Medicaid community-engagement interplay | Per Medicaid implementation | Individuals who fail community-engagement rules are treated as Medicaid-eligible for PTC — ineligible for credit those months. |
The community-engagement provision is worth reading carefully. Under the proposal, individuals who would otherwise qualify for Medicaid but fail the H.R. 1 community-engagement requirements are generally treated as eligible for Medicaid minimum essential coverage for premium tax credit purposes. Because an individual eligible for Medicaid minimum essential coverage cannot claim the premium tax credit, failing the Medicaid work-related rule flips the person out of credit eligibility for the affected months. Qualifying activities include working, enrollment in an educational program, or participation in a work program or community service at least 80 hours a month. The proposal provides examples showing how eligibility shifts if a taxpayer later becomes ineligible for Medicaid for a different reason, such as a mid-year income increase.
What should a client or small employer do before the Nov. 30 comment deadline? 📅
Pull the current Form 1095-A, match it to the real income trajectory for the year, update the exchange application if the number has moved, and build the paper trail the new verification rules will expect. Comments on the proposal are due Nov. 30, 2026.
- Pull Form 1095-A and run a mid-year reconciliation. Compare the household income on file with the exchange to the actual year-to-date income and projected year-end income. A $20,000 understatement is now the full repayment at filing, not a capped amount.
- Update the exchange application the day income changes. A promotion, a bonus, a 401(k) distribution, a spouse returning to work. The old safety net is gone — the application is the control.
- Document eligibility factors by month. From 2028 onward, verification is per-month, not per-return. Keep income statements, offers of other coverage, and immigration documentation (where applicable) organized the way payroll records already are.
- Review employer coverage offers for exchange-enrolled employees. Employer offers of affordable minimum essential coverage already disqualify the credit; the new verification rules make the paper trail from the employer more important. Keep offer letters, waiver forms, and Form 1095-C records tight.
- Decide whether to file a comment. The Federal Register notice lists the submission mechanism. If a specific industry or household situation is poorly covered by the proposed rule, a short, specific comment on the record carries weight. The comment period closes Nov. 30, 2026.
Summary: premium tax credit under OBBBA
- Proposed regulations REG-101576-26 implement H.R. 1 (P.L. 119-21) changes to IRC Section 36B.
- Repayment cap on excess advance premium tax credit is repealed for tax years beginning after Dec. 31, 2025.
- Marketplace verification becomes a per-month gate for credit coverage months starting after Dec. 31, 2027.
- Several categories of lawfully present immigrants are excluded from the credit math under the new rules.
- Treasury estimates about 3.7 million 2028 returns will include excess advance credit repayments; comment deadline Nov. 30, 2026.
Frequently asked questions about the premium tax credit under OBBBA ❓
Q. What is the premium tax credit and who claims it?
The premium tax credit is a refundable federal tax credit under Section 36B that helps lower-and middle-income households pay the premium on a qualified health plan bought through a marketplace exchange. Most people take it in advance each month to lower the premium they actually pay, and reconcile the amount on Form 8962 when they file.
Q. What did OBBBA (H.R. 1, P.L. 119-21) change about the premium tax credit?
H.R. 1 repealed the income-based cap on repayment of excess advance premium tax credits for tax years beginning after Dec. 31, 2025, tightened eligibility and marketplace verification rules for later years, and reshaped eligibility for lawfully present immigrants who are not eligible aliens under Section 36B(e)(2)(B). The IRS and Treasury proposed regulations REG-101576-26 implement those statutory changes.
Q. Will I have to repay more of my advance premium tax credit now?
Possibly. Starting with 2026 returns, there is no longer a dollar cap on how much excess advance premium tax credit a taxpayer must repay. Treasury and the IRS estimated that about 3.7 million 2028 returns will include a repayment of excess advance credits. If your actual household income ends up higher than what you told the exchange, the full excess is owed back with the return.
Q. When do the new verification rules for the premium tax credit start?
For tax years beginning after Dec. 31, 2027, a month generally does not count as a premium tax credit coverage month unless the marketplace verifies the required enrollment information for that individual. For people receiving advance credits, the exchange must verify household income, family size, eligibility for other minimum essential coverage, and, when applicable, eligible-alien status.
Q. Does the proposed regulation change who qualifies based on immigration status?
Yes. For tax years beginning after Dec. 31, 2026, a taxpayer generally has to exclude from the credit calculation premiums attributable to individuals who are lawfully present in the United States but who are not eligible aliens under Section 36B(e)(2)(B). The old rule that let certain lawfully present immigrants with household income below 100% of the federal poverty level qualify, where they were ineligible for Medicaid because of immigration status, is removed for tax years beginning after Dec. 31, 2025.
Q. How does the Medicaid community-engagement rule affect premium tax credit eligibility?
Under the proposed regulations, individuals who would qualify for Medicaid but fail the new community-engagement requirements are generally treated as eligible for Medicaid minimum essential coverage for premium tax credit purposes, which makes them ineligible for the credit for those months. Community engagement can include working, being enrolled in an educational program, or taking part in a work program or community service at least 80 hours a month.
Q. What should an exchange enrollee or small-business owner do before filing a comment or the next return?
Pull the most recent Form 1095-A and compare the household income on file with the marketplace to the income you now expect for the year, revise the exchange application if the number has moved, and keep documentation of eligibility factors (income, family size, immigration status, other coverage). For small-business owners whose employees enroll on an exchange, the verification rules starting after 2027 will raise the stakes for accurate wage and benefit reporting.
This article is general information from IRS Premium Tax Credit guidance and the public Federal Register notice, not tax or legal advice for any specific household. Premium tax credit calculations turn on exchange filings, Form 1095-A reporting, and Form 8962 reconciliation; for a specific situation, contact SW Accounting & Consulting Corp.
