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Social Security, Medicare & insurance · Financial term

Premium Tax Credit

Also called PTC · ACA subsidy · advance premium tax credit · APTC · Obamacare subsidy

What is the premium tax credit?

The premium tax credit is a refundable federal tax credit that lowers the cost of health insurance bought through the ACA Marketplace. It equals the premium of a benchmark silver plan minus a set share of your household income. Most people take it in advance as a monthly discount, then reconcile it with their actual income when they file.

9 min readWorked example4 common questions

How the premium tax credit is calculated

The credit starts from a benchmark: the second-lowest-cost silver plan (SLCSP) available to the people you are covering, where you live. The IRS then sets how much of that premium you are expected to pay yourself, a share of household income called the applicable percentage. The credit covers the rest.

For 2026, that share runs from 2.10% of income just above the poverty line to 9.96% from 300% to 400% of it, flat below 133% and from 300% up, and rising in a straight line within each band between, as the table below shows. Because your share depends on income while the benchmark price depends on age and place, older buyers and people in expensive counties get far larger credits at the same income. The benchmark leaves out tobacco surcharges, so a smoker pays that extra premium in full.

The credit is a dollar amount, not a discount reserved for silver plans. You can apply it to any metal tier on the ACA Marketplace, from bronze to platinum. It can’t exceed the premium of the plan you pick, though, so if a bronze plan costs less than your credit, you pay nothing and the rest is simply lost.

Who qualifies for the credit in 2026

Eligibility is a checklist, and income is only one line of it. The larger credits of 2021–2025 have expired, so 2026 coverage is back under the original income limits, measured against the prior year’s poverty guidelines.

A job-based offer blocks the credit only if it is affordable and meets minimum value. For 2026, it is affordable if the employee’s share of self-only coverage is no more than 9.96% of household income, and family members are tested against the employee’s cost for family coverage. Coverage from a former employer, such as COBRA or retiree coverage, can be turned down without losing the credit, but it blocks the credit for any month you are enrolled in it.

  • Household income from 100% to 400% of the federal poverty level: $15,650 to $62,600 for one person and $21,150 to $84,600 for two.
  • Coverage bought through the Marketplace for at least one month, with that month’s premium paid by your return’s due date.
  • No eligibility for other coverage such as Medicare, Medicaid, TRICARE or an affordable employer plan.
  • Married couples must file jointly, apart from certain victims of domestic abuse or spousal abandonment; filing separately otherwise rules it out.
  • No one else can claim you as a dependent.

What counts as household income

Household income is the modified adjusted gross income of you and everyone in your tax family who is required to file a return. It starts from adjusted gross income and adds back excluded foreign income, the untaxed part of Social Security and tax-exempt interest. The result is that every dollar of Social Security and of municipal bond interest counts.

For people living on savings, what moves this number is which account the money comes from, not how much they spend.

  • Raises it: wages, pensions, traditional IRA and 401(k) withdrawals, Roth conversions, interest, dividends and realized capital gains.
  • Leaves it alone: spending cash savings, the cost basis of investments you sell, and qualified Roth IRA withdrawals.
  • Lowers it: pre-tax 401(k) and deductible IRA contributions, and HSA contributions, all of which come off before AGI.

Advance payments and reconciling at tax time

Most enrollees take the credit in advance. The Marketplace estimates it from the income you expect, and the Treasury pays it to your insurer each month, which lowers your bill. You can instead pay the full premium and claim the whole credit on your return. Either way the credit is refundable: you receive it even if you owe no income tax.

Because the advance is only an estimate, the Marketplace sends Form 1095-A after the year ends, and you settle up on Form 8962. Anyone who received advance payments must file a federal return with that form. If your income came in lower than projected, the difference is added to your refund. If it came in higher, you repay the excess, and for tax years after 2025 there is no repayment cap: the whole difference is added to your tax bill.

Reporting income and household changes to the Marketplace during the year keeps that gap small, and so does extra withholding in a year with a large sale or conversion.

The 400% cliff and how to plan around it

Under 2026 rules the credit does not taper off at the top; it stops. One dollar of household income above 400% of the poverty level removes all of it, which for an older enrollee in a high-premium county can exceed $15,000 a year, as the example shows. Below the line the cost is gradual but real: in the 300%–400% band, each extra $1,000 of income cuts the credit by $99.60, a hidden 9.96% on top of your marginal tax rate.

That makes income timing a planning tool in the years before Medicare. Early retirees often draw on cash or a taxable account while on Marketplace coverage, and size Roth conversions and gain harvesting to stay under the line. If income lands just over it, a deductible IRA or HSA contribution made by the filing deadline can bring it back under, for anyone eligible to make one. Waiting until 65 isn’t a clean escape: IRMAA looks back two years, so income at 63 can raise Medicare premiums at 65.

The floor matters too. Income below 100% of the poverty level generally means no credit, so in a state that has not expanded Medicaid, a year with too little income can leave you without help.

Illustrative numbers

A 50-year-old in Monroe County, Florida, on each side of the 2026 cliff

Formula
Premium tax credit = lesser of (benchmark silver premium − applicable % × household income) or your plan’s premium
Benchmark silver premium
Premium of the second-lowest-cost silver plan for the people covered, where you live
Applicable %
Your expected share of income: 2.10% to 9.96% for 2026, set by income as a share of the poverty level
Household income
Modified AGI of you, your spouse and any dependents required to file
Your plan’s premium
What the plan you actually enroll in costs

Figured month by month; for 2026 coverage there is no credit at all above 400% of the poverty level.

Benchmark silver premium, 2026 (CRS)$1,785 a month, or $21,420 a year

Household income$60,000, or 383% of the poverty level

Expected contribution: 9.96% × $60,000$5,976 a year

Premium tax credit: $21,420 − $5,976$15,444 a year, about $1,287 a month

Same person with $63,000 of incomeOver 400% of the poverty level: $0

Adding $3,000 of income, for example a slightly larger IRA withdrawal, would cost this person the entire $15,444 credit, more than five times the extra income. If the full advance had been paid all year, all $15,444 would be repaid at filing, with no cap for 2026.

At a glance

2026 applicable percentages by income (2025 poverty guidelines, 48 contiguous states and DC)

Income as % of poverty levelShare of income toward the benchmarkOne personTwo people
100% to under 133%2.10%$15,650–$20,814$21,150–$28,129
133% to under 150%3.14%–4.19%$20,815–$23,474$28,130–$31,724
150% to under 200%4.19%–6.60%$23,475–$31,299$31,725–$42,299
200% to under 250%6.60%–8.44%$31,300–$39,124$42,300–$52,874
250% to under 300%8.44%–9.96%$39,125–$46,949$52,875–$63,449
300% to 400%9.96%$46,950–$62,600$63,450–$84,600
Over 400%No creditOver $62,600Over $84,600

Put it in your plan

Premium tax credit in MoneyWhatIf

MoneyWhatIf estimates the advance credit from prior-return information, adjusted for events such as retirement and one-time income, then reconciles it against each year’s modeled income and repays any excess advance. ACA income adds back untaxed Social Security and tax-exempt interest, and the shipped 2026 rules use the 100%–400% eligibility window. The Taxes page’s tax map draws forfeiting the credit as a dashed cliff priced in dollars, and Tax Planning’s Preserve ACA switch stops a Roth conversion short of the 400% line.

Open your forecast

Common questions

Premium tax credit FAQs

Did the enhanced premium tax credits expire?

Yes. From 2021 through 2025, temporary rules removed the 400% income limit and lowered the income shares, to zero for households from 100% to 150% of the poverty level. They expired after 2025, and the One Big Beautiful Bill Act did not extend them, so 2026 coverage follows the original rules: income shares of 2.10%–9.96% and no credit above 400%. The credit itself has no end date. Check HealthCare.gov for the rules that apply to 2027 coverage when you enroll.

Do Roth conversions reduce the premium tax credit?

Yes. A conversion is taxable income, so it raises household income, shrinks the credit and can push you over the 400% line. That doesn’t rule conversions out: a year with modest spending needs may leave room below the cliff. Size each conversion against both your tax bracket and the credit it costs, and remember that the lost credit acts like extra tax on the conversion.

Does Social Security count as income for the premium tax credit?

All of it does. Household income adds the untaxed part of your benefit back to AGI, so the full amount counts, unlike the provisional income test for taxing benefits, which counts half. Claiming Social Security early can therefore shrink or end a Marketplace credit, while delaying the claim keeps income lower in the years before Medicare.

What happens if I don’t file Form 8962?

If the Marketplace paid advance credits for anyone in your tax family, you must file a federal return with Form 8962 for that year, even if you would not otherwise need to file. If you don’t, you won’t be eligible for advance payments in later years, so you would pay each month’s full premium and wait until you file to claim the credit. Filing also settles the year: a lower final credit means repaying the difference, with no cap for 2026.