What income qualifies for ACA subsidies?

For 2024, subsidies are available if your household income is between 100% and 400% of the federal poverty level (FPL). Under the American Rescue Plan Act extensions, people above 400% FPL may also qualify — this calculator applies that enhanced cap.

What is the federal poverty level (FPL)?

The FPL is an income threshold published annually by the Department of Health and Human Services. For 2024, the 48-state baseline is $15,060 for a single person, rising by $5,380 for each additional person. Alaska and Hawaii have higher thresholds.

How is the subsidy amount calculated?

The ACA uses a sliding scale. You pay a capped percentage of income toward the benchmark Silver plan premium; the subsidy covers the rest. At 100–133% FPL the cap is about 0–2%, rising to about 8.5% of income at 400%+ FPL. The actual subsidy = benchmark premium minus your expected contribution.

What is the benchmark Silver plan?

The second-lowest-cost Silver plan available to you in your county sets the benchmark for subsidy calculations. Actual Silver plan premiums vary by region and age. Use HealthCare.gov to find the real benchmark for your area.

Does this calculator account for Medicaid eligibility?

No. If your income is below 138% FPL and your state has expanded Medicaid, you likely qualify for Medicaid rather than Marketplace subsidies. This tool estimates Marketplace subsidies only — check your state Medicaid program separately.

How accurate is this estimate?

This tool uses 2024 FPL guidelines and the ACA contribution percentage table to produce a close approximation. Real subsidies depend on your exact benchmark Silver premium (which varies by county and age), so treat this as a planning estimate, not a guaranteed figure.

Health Insurance Subsidy Calculator

Name: Health Insurance Subsidy Calculator
Availability: InStock
Author: Nham Vu

Enter your household income and family size to estimate your ACA Marketplace premium tax credit and out-of-pocket premium.

Your Household Details

Annual Household Income (before taxes)

Household Size

State

Benchmark Silver Plan Premium (monthly) — 2nd lowest Silver in your area

Leave blank to use the national average estimate (~$450/mo for 1 adult).

Subsidy Estimate

Fill in your details and click
Calculate Subsidy

2024 Federal Poverty Level Reference (lower 48 + DC)

Household Size	100% FPL	138% FPL (Medicaid line)	400% FPL

Summary

Enter your household income and family size to estimate your ACA Marketplace premium tax credit and out-of-pocket premium.

How it works

Enter your total annual household income before taxes.
Select your household size (number of people on the plan).
Choose your state to apply the correct 2024 federal poverty level guideline.
Enter the benchmark Silver plan monthly premium in your area (or use the default estimate).
Click Calculate to see your FPL percentage, estimated subsidy, and net monthly premium.

Use cases

Estimating monthly health insurance costs when shopping on HealthCare.gov.
Understanding whether your income qualifies you for ACA premium tax credits.
Planning income changes (new job, freelance) and their effect on your subsidy.
Comparing subsidy amounts for different household sizes during open enrollment.
Checking if you are near the 400% FPL cliff where subsidies end (enhanced subsidies extend beyond that under current law).
Budgeting annual health insurance expenses as a self-employed individual.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu