What this line means
Your household income (line 3) divided by the federal poverty line (line 4), expressed as a percentage. This is the single most important number on Form 8962. It determines whether you qualify for the Premium Tax Credit and, if so, how much of your income you are expected to contribute toward your health insurance premiums.
Does this apply to you?
- You are completing Form 8962 and have amounts on lines 3 and 4
- You need to know whether your income qualifies you for the Premium Tax Credit
- You want to determine your expected contribution percentage from the applicable figure table
Easy to overlook
You may still qualify above 400% of the federal poverty line The Inflation Reduction Act extended enhanced PTC eligibility so that filers above 400% of the federal poverty line can still receive a credit if their benchmark premium exceeds 8.5% of household income. Before this extension, the credit dropped to zero at 400%. Filers just above the 400% threshold sometimes assume they get nothing and skip Form 8962, missing a credit they are entitled to. 1 IRS Form 8962 Instructions — Line 5
Rounding matters in this calculation The instructions require rounding this percentage down to a whole number. If the calculation yields 249.7%, you enter 249%, not 250%. This distinction matters because the applicable figure table has different contribution percentages at different levels. Rounding up instead of down can place you in a higher contribution bracket and reduce your credit. 2 IRS Publication 974 — Premium Tax Credit
Watch out for this
A small income change can cause a large credit change near the bracket boundaries. If your percentage is close to a breakpoint in the applicable figure table — for example, near 150%, 200%, 250%, or 300% — even a few hundred dollars of additional income can shift your applicable figure and noticeably change your credit. If your income is near a boundary, check whether a deductible IRA contribution or HSA contribution could lower your AGI enough to stay in the lower bracket.
Footnotes
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IRS Form 8962 Instructions, Line 5. https://www.irs.gov/instructions/i8962 ↩
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IRS Publication 974, Premium Tax Credit, Calculating Household Income Percentage. https://www.irs.gov/pub/irs-pdf/p974.pdf ↩