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APTC Subsidies

The Advanced Premium Tax Credit (APTC) is a federal subsidy that reduces monthly health insurance premiums for eligible individuals and families. Eligibility is based on household income relative to the Federal Poverty Level (FPL).

  1. The government determines the benchmark plan (second-lowest-cost Silver plan in your area)
  2. Your expected contribution is calculated as a percentage of household income
  3. APTC = benchmark plan premium minus your expected contribution
  4. The credit can be applied to any metal-level plan (not just Silver)
Income (% of FPL)Expected Contribution
100-150%0% of income
150-200%0-2% of income
200-250%2-4% of income
250-300%4-6% of income
300-400%6-8.5% of income
400%+8.5% of income (cap)

The APTC estimation endpoint calculates subsidies based on your location, age, income, and household size.

Pro This endpoint requires a Pro subscription.

Terminal window
curl -H "Authorization: Bearer op_YOUR_API_KEY_HERE" \
"https://api.opelyx.com/v1/health/plans/aptc-estimate?zip=33139&age=35&income=45000&household_size=1"

The response includes the estimated monthly APTC amount and the net premium after applying the credit to each plan.