If you're exploring the Section 8 Housing Choice Voucher program, one of the first things to understand is how income limits work — and why the same family in different cities can face very different eligibility thresholds. The limits aren't set once nationally and applied everywhere. They're calculated locally, adjusted for family size, and updated regularly. Here's how the system works and what shapes the numbers that matter for your situation.
The U.S. Department of Housing and Urban Development (HUD) sets income limits for the Section 8 program using a benchmark called Area Median Income (AMI). This is the midpoint income for a given geographic area — meaning half of households in that area earn more and half earn less.
HUD calculates AMI for hundreds of metropolitan areas and non-metropolitan counties across the country. Because the cost of living and local wages vary dramatically from region to region, a family in rural Mississippi and a family in San Francisco will face very different income thresholds — even if their household size is identical.
Section 8 eligibility is then determined by where your income falls relative to the local AMI, organized into three tiers:
| Income Category | Definition |
|---|---|
| Extremely Low Income | At or below 30% of area median income |
| Very Low Income | At or below 50% of area median income |
| Low Income | At or below 80% of area median income |
Most Housing Choice Vouchers are targeted toward households at or below 50% of AMI, with federal law also requiring that a significant share go to households at or below 30% of AMI. Households above 80% of AMI are generally not eligible.
Because limits are tied to local AMI, geography plays an enormous role. A few key realities:
This means that quoting a specific dollar figure that applies nationally would be misleading — the correct number depends entirely on the specific Public Housing Authority (PHA) and metro area where you're applying.
HUD's income limits scale with household size, starting from a baseline of four people. Smaller households face lower income thresholds; larger households qualify at higher income levels.
The adjustment follows a general pattern:
This structure reflects the reality that larger families need more income to meet basic needs. A single adult earning $28,000 and a family of five earning the same amount are in very different financial positions, and the program accounts for that.
Here's the practical picture: the same household could be eligible in one city and ineligible in another based solely on where they live. A two-person household in a high-cost metro area might qualify at an income level that would make them over-income in a rural county.
It also means you should look up the specific income limits for the exact PHA you plan to apply through — not just statewide averages, which can obscure meaningful variation between jurisdictions.
Some additional factors that can affect how income is counted:
Because these numbers change every year and vary by location, the most reliable sources are:
When looking up figures, make sure you're looking at the current year's data and the correct geographic area — limits for neighboring counties or metro areas can differ more than you'd expect.
"My state has one income limit." Not quite. Most states contain multiple HUD-designated areas with different AMIs, so limits vary within a state.
"If I'm under the limit, I'll get a voucher." Meeting the income limit makes you potentially eligible — it doesn't guarantee a voucher. Most PHAs have waiting lists, sometimes years long, and some are closed to new applicants entirely.
"The limit is the same everywhere for Section 8." This conflates Section 8 with other programs. HUD uses similar AMI-based limits across several programs, but the specific thresholds and how income is calculated can differ between the Housing Choice Voucher program and other HUD-assisted housing.
Understanding the framework is useful — but knowing whether you'd qualify, and through which PHA, requires looking at your specific circumstances: your household size, your total gross income from all sources, where you want to apply, and the current limits for that area. The local PHA is the definitive source for that assessment, and contacting them directly is the right next step for anyone seriously exploring the program.
