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The Premium Tax Credit: How ACA Subsidies Work

The Premium Tax Credit: How ACA Subsidies Work

The premium tax credit (PTC) is a refundable federal tax credit that lowers what you pay for a health plan bought through an Affordable Care Act (ACA) Marketplace. It equals the cost of a benchmark plan in your area minus a required contribution based on your income. You can take it in advance to cut monthly premiums, or claim it as a lump sum when you file. For 2026, the enhanced rules from 2021 through 2025 have expired, so eligibility and dollar amounts changed sharply.

The credit is set under Internal Revenue Code Section 36B and reconciled on IRS Form 8962. It is one of the larger refundable credits in the federal tax credits database. Because the amount depends on your final income, the credit you actually qualify for may differ from what you received during the year, and the difference is settled at tax time.

How the premium tax credit is calculated

The premium tax credit equals the premium for the second lowest cost silver plan (SLCSP) available to your household, minus your required contribution. Your required contribution is your household income multiplied by an applicable percentage set each year by the IRS. The result is capped at the actual premium of the plan you enrolled in, so the credit never exceeds what you paid.

The SLCSP is called the benchmark plan. It is used only to size the credit. You can apply the credit to any metal-tier plan (bronze, silver, gold, platinum) sold on the Marketplace, not just the silver benchmark.

Household income for this purpose is modified adjusted gross income (MAGI): your adjusted gross income plus tax-exempt interest, excluded foreign earned income, and the nontaxable portion of Social Security benefits, summed across everyone on the return required to file.

Advance PTC versus claimed PTC

There are two ways to receive the premium tax credit. Advance PTC (APTC) is paid directly to your insurer each month during the year, lowering your premium bill. Claimed PTC is the full credit you calculate on your tax return and receive as a refund or offset. Most enrollees use APTC, but you can decline it and claim the entire credit at filing instead.

APTC is an estimate. When you enroll, the Marketplace projects your credit from the income you report. Because that projection can be wrong, the two amounts rarely match exactly. The gap is resolved through reconciliation on Form 8962.

Feature Advance PTC (APTC) Claimed PTC
When received Monthly, during the plan year At filing, as refund or offset
Paid to Your insurer You
Based on Estimated (projected) income Actual year-end income
Reconciled on Form 8962 Yes, required Yes
Repayment risk Possible if income rose None (you claim what you qualify for)

Choosing to take less APTC than you may qualify for, or none at all, can reduce the risk of owing money back later. This can matter more in 2026 because the repayment cap that once limited that risk was removed. If you expect a large repayment, adjusting your tax withholding or estimated tax payments during the year can help you avoid a surprise balance due.

Form 8962: reconciling the credit

Form 8962 reconciles the advance premium tax credit paid on your behalf against the credit you actually qualify for based on year-end income. If your allowed credit is larger than the APTC you received, you claim the difference. If the APTC was larger, you generally repay some or all of the excess. Anyone who had Marketplace coverage or received APTC must file Form 8962 with their Form 1040.

You cannot skip this step. Failing to file Form 8962 after receiving APTC can delay your refund and may make you ineligible for advance payments in a future year until the return is reconciled.

For tax years through 2025, the amount of excess APTC you had to repay was capped for households under 400% of the federal poverty level (FPL), based on income and filing status. Under the One Big Beautiful Bill Act (OBBBA), that cap is eliminated for tax years after 2025. Beginning with 2026 coverage, taxpayers generally must repay the full amount by which APTC exceeds the allowed credit, with no cap, subject to any later legislative change.

2025 excess APTC repayment caps (last year caps applied)

Household income (% of FPL) Single filer cap Other filers cap
Under 200% $375 $750
200% to under 300% $975 $1,950
300% to under 400% $1,625 $3,250
400% or more No cap (full repayment) No cap (full repayment)

These 2025 figures come from Form 8962 instructions (Table 5) and are indexed annually. For 2026 the caps below 400% no longer apply, so the table above reflects the final year of capped repayment.

Form 1095-A: the statement you need first

Form 1095-A, the Health Insurance Marketplace Statement, reports your Marketplace coverage months, your monthly enrollment premiums, the benchmark (SLCSP) premium, and the APTC paid to your insurer. You need it to complete Form 8962, because the figures on Form 8962 come directly from it. The Marketplace must furnish Form 1095-A by January 31 following the coverage year.

Check Form 1095-A carefully before filing. A common error is a missing or incorrect SLCSP amount in column B, which can throw off the entire credit calculation. If the SLCSP is blank or wrong, you may need a corrected form from the Marketplace or the lookup tool on the exchange website.

Do not confuse Form 1095-A with Forms 1095-B or 1095-C. Only Form 1095-A supports the premium tax credit and Form 8962. The B and C versions come from insurers and employers and are informational.

The FPL percentage bands for 2026

Eligibility and the size of your required contribution turn on where your income falls relative to the federal poverty level. For 2026, the applicable percentage (the share of income you are expected to put toward the benchmark plan) rises across every band, and no credit is available above 400% FPL. The table below reflects the schedule after the enhanced credits expired.

Household income (% of FPL) 2026 applicable percentage (approx.)
Up to 133% 2.10%
133% to 150% 3.14% to 4.19%
150% to 200% 4.19% to 6.60%
200% to 250% 6.60% to 8.44%
250% to 300% 8.44% to 9.96%
300% to 400% 9.96% (flat)
Above 400% No PTC (subsidy cliff)

These percentages come from Revenue Procedure 2025-25, the annual IRS indexing guidance for Section 36B. The 9.96% top rate for 2026 is far higher than the enhanced-era ceiling of 8.5% that had applied at all income levels through 2025. Percentages are indexed each year, so exact figures may shift.

To use the table: multiply your annual household income by the applicable percentage to get your expected annual contribution, then subtract that from the benchmark premium. A positive result is your maximum credit for the year.

The 2026 subsidy cliff: current status

The 2026 subsidy cliff is back. The enhanced premium tax credits created by the American Rescue Plan Act in 2021 and extended through 2025 by the Inflation Reduction Act expired on January 1, 2026. Two enhancements ended: the removal of the 400% FPL income cap, and the 8.5% ceiling on required contributions. As of mid-2026, Congress has not enacted an extension.

With the enhancements gone, households above 400% FPL lose the credit entirely, no matter how high the premium runs. This is the cliff: a dollar of income over the threshold can eliminate a large subsidy. Older, middle-income enrollees, who face the highest premiums, may see the steepest increases.

Below 400% FPL, subsidies remain but shrink, because the required-contribution percentages rose. KFF analysis estimated that average out-of-pocket premium payments for subsidized enrollees roughly doubled for 2026 compared with 2025 for the same plan, with an average increase reported near 114%.

OBBBA also tightened the rules beyond the cliff. It restricts eligibility for some lawfully present immigrants, limits automatic re-enrollment through stricter pre-enrollment verification, and removes the repayment cap discussed above. Any of these may change if Congress acts later, so treat the current framework as the law in effect unless and until an extension passes.

Frequently asked questions

Who qualifies for the premium tax credit in 2026?

In general, you may qualify if you buy coverage through an ACA Marketplace, have household income at or above 100% FPL (in most cases up to 400% for 2026), are not eligible for other minimum essential coverage such as affordable employer coverage or Medicaid, and do not file married-separate (with limited exceptions). Above 400% FPL, no credit is available for 2026 unless Congress extends the enhancements.

What is the difference between advance PTC and the claimed credit?

Advance PTC is paid to your insurer monthly during the year, based on estimated income, so it lowers your premium bills immediately. The claimed credit is the full amount you calculate at filing on actual income and receive as a refund or offset. You reconcile the two on Form 8962. If advance payments exceeded your allowed credit, you may owe the difference back.

Do I have to pay back the premium tax credit?

You may. If the advance PTC paid on your behalf was larger than the credit you qualify for at year-end, the excess is repaid on your tax return. For 2025 and earlier, repayment was capped for households under 400% FPL. For 2026, under OBBBA, that cap is removed, so you generally repay the full excess. Keeping your reported income current with the Marketplace can reduce this risk.

What is Form 1095-A used for?

Form 1095-A, the Health Insurance Marketplace Statement, reports your Marketplace coverage months, monthly premiums, the second lowest cost silver plan (benchmark) premium, and any advance PTC paid. You use its figures to complete Form 8962. The Marketplace sends it by January 31. Review column B (the SLCSP amount) closely, since errors there can distort your credit.

What is the 2026 subsidy cliff?

The subsidy cliff is the loss of all premium tax credit once household income exceeds 400% FPL. The enhanced credits that had removed this cliff (2021 through 2025) expired January 1, 2026, and were not extended as of mid-2026. Above 400% FPL, enrollees pay the full unsubsidized premium. Below 400%, subsidies remain but are smaller because contribution percentages rose.

How is household income measured for the PTC?

The premium tax credit uses modified adjusted gross income (MAGI): adjusted gross income plus tax-exempt interest, excluded foreign earned income, and the nontaxable portion of Social Security benefits, totaled for everyone on the return who must file. Because eligibility depends on year-end MAGI, reporting income changes to the Marketplace during the year helps keep advance payments accurate and limits repayment.

Can I take the credit if I have other coverage available?

Often no. If you are eligible for other minimum essential coverage, such as affordable employer-sponsored coverage that meets a minimum-value standard, Medicaid, Medicare, or CHIP, you generally cannot claim the PTC for those months. Whether employer coverage counts as affordable depends on the cost of self-only coverage relative to your household income, which the IRS adjusts annually.

Reviewed by The Ledgerism Editorial Team. Last reviewed: July 2026.

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