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American Rescue Plan Premium Tax Credit Calculator
Estimate your ARP Premium Tax Credit based on household income, size, and state FPL guidelines for Marketplace health coverage.
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Annual Premium Tax Credit
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How the American Rescue Plan Premium Tax Credit Works
The Core Formula
The Premium Tax Credit (PTC) equals the difference between the annual benchmark plan premium and the maximum amount a household is expected to contribute toward coverage, expressed as a percentage of income:
PTC = max(0, Pbenchmark − I × A(I/FPL))
Where Pbenchmark is the annual premium of the second-lowest-cost Silver plan available on the Marketplace, I is the household's Modified Adjusted Gross Income (MAGI), and A(I/FPL) is the applicable percentage — a sliding-scale rate that rises with income expressed as a share of the Federal Poverty Level (FPL). The result cannot fall below zero.
Variable Definitions
- Household Income (MAGI): The Modified Adjusted Gross Income of every individual in the tax household. MAGI includes wages, self-employment income, Social Security benefits, and most other taxable income streams, reduced by above-the-line deductions such as the self-employment tax deduction.
- Household Size: The count of the taxpayer, spouse (if married filing jointly), and all dependents claimed on the federal return. Household size sets the FPL threshold against which income is measured, so adding a dependent both raises that threshold and can substantially increase the credit.
- Benchmark (Silver) Premium: The annual cost of the second-lowest-cost Silver plan offered through the Health Insurance Marketplace in the household's rating area. This reference plan sets the subsidy ceiling — the household does not have to enroll in it to claim the credit.
- State: Alaska and Hawaii use higher FPL thresholds established by the HHS Poverty Guidelines. A household of four in Alaska has a 2024 FPL of approximately $41,850 versus $31,200 for the contiguous United States, materially raising the income ceiling for maximum subsidies.
Applicable Percentage Table (ARP-Enhanced Rates)
The American Rescue Plan Act of 2021 overhauled the applicable percentage schedule. Before the ARP, households earning above 400% FPL received no credit — a sharp subsidy cliff. The ARP capped required contributions at 8.5% of income for all Marketplace enrollees regardless of income. The Inflation Reduction Act of 2022 extended these enhanced rates through 2025. Contribution caps by income band are approximately:
- Up to 150% FPL: 0% — no required contribution
- 150–200% FPL: 0% to 2% of income
- 200–250% FPL: 2% to 6% of income
- 250–300% FPL: 6% to 8.5% of income
- 300–400% FPL: 8.5% of income
- Above 400% FPL: 8.5% of income (hard cap, no cliff)
Step-by-Step Calculation Example
Consider a family of four in Texas with a MAGI of $75,000. The 2024 contiguous-U.S. FPL for a family of four is $31,200. Income as a percentage of FPL is $75,000 ÷ $31,200 = 240.4% FPL. The applicable percentage at 240% FPL interpolates to approximately 5.73%. Maximum required contribution = $75,000 × 0.0573 = $4,298 per year. If the benchmark Silver plan costs $14,000 annually, the annual PTC = $14,000 − $4,298 = $9,702, or approximately $808 per month applied as an advance payment directly to the insurer.
Advance Credit vs. Year-End Reconciliation
The PTC can be taken as an advance payment forwarded directly to the insurer each month, or claimed as a lump sum on Form 8962 at tax time. Households taking advance payments must reconcile at year-end. If actual income falls below the estimate used to set advance payments, the household receives an additional refundable credit. If income exceeds the estimate, some or all of the advance must be repaid, subject to repayment caps for households below 400% FPL. Reporting income changes to the Marketplace throughout the year minimizes large year-end adjustments.
Methodology and Sources
This calculator applies the sliding-scale applicable percentages defined in 26 U.S.C. §36B as amended by the American Rescue Plan Act of 2021. FPL thresholds follow the HHS Poverty Guidelines published annually by the Department of Health and Human Services. Applicable percentage interpolation follows the methodology documented in the IRS Premium Tax Credit overview and Publication 974. Subsidy variation analysis draws on the Congressional Research Service report Illustrative Examples of Premium Tax Credit Variation. ARP enhancement background is sourced from the American Rescue Plan summary by U.S. Congresswoman Terri Sewell.
Reference