The Income Limits API provides access to the income eligibility limits for affordable housing programs at a property. These limits are derived from the property’s set-aside programs and reflect the maximum annual household income allowed under a given AMI (Area Median Income) percentage tier.
Each income limit is tied to an AMI percentage tier (e.g. 50%, 60%, 80%) and program name (e.g. LIHTC-60%, HOME-50%). This represents the fraction of the Area Median Income for the local metro area that defines the income ceiling for that unit set-aside.
Income limits vary by the number of people in the household. Each record represents a single combination of AMI percentage tier and household size (1–12 people), with a corresponding dollar amount.
Limits are updated annually (typically in April) as HUD publishes new AMI data. Use the effectiveDate field to identify which year’s limits apply.
The overIncomeThresholdPercentage field indicates how far above the income limit a household can be and still qualify under program rules. This varies by program — LIHTC allows up to 140% of the limit, while HOME uses 80%. This is critical for evaluating current residents at the end of a compliance period.