Section 9 housing is the federal public housing program funded under Section 9 of the U.S. Housing Act of 1937. Local Public Housing Agencies (PHAs) own and operate the buildings, and eligible low-income tenants pay a rent tied to their income, typically around 30% of adjusted monthly earnings. About 1.7 million people live in public housing nationwide, though the stock has been shrinking for decades as buildings age and federal investment has not kept pace.
Section 9 vs. Section 8
The two programs get mixed up constantly. Both help low-income households afford housing, but the structure is different.
Under Section 9, the PHA owns the building. You live in a unit the agency controls, and the agency is your landlord. Under Section 8, specifically the Housing Choice Voucher program, you find an apartment on the private market and a voucher covers part of the rent to a private landlord. The funding streams, the landlord relationship, and the rules governing each program diverge in important ways.
Section 9 money flows through two channels set up by 42 U.S.C. § 1437g: the Operating Fund for day-to-day costs like maintenance and utilities, and the Capital Fund for larger projects such as renovations, accessibility improvements, and demolition of obsolete units.1Office of the Law Revision Counsel. 42 U.S. Code 1437g – Public Housing Capital and Operating Funds
Who Qualifies
Three things drive eligibility: your income, your household composition, and the immigration status of everyone in the household. Criminal history matters too, though PHAs have more discretion there than most applicants realize.
Income Limits
HUD sets income limits each year for every metropolitan area and county, adjusted for family size. Three tiers matter for public housing:
- Extremely low income: at or below 30% of area median income (AMI)
- Very low income: at or below 50% of AMI
- Low income: at or below 80% of AMI
You can technically qualify with income up to 80% of AMI. But federal law requires that at least 40% of the units a PHA fills in a given year go to extremely low-income families.2Office of the Law Revision Counsel. 42 U.S. Code 1437n – Eligibility for Assisted Housing In practice, most public housing tenants earn well below 50% of AMI, and applicants in the 50%–80% range face much longer odds. Limits also vary sharply by location; what counts as extremely low income in San Francisco would be middle income in a rural county.3HUD USER. Income Limits Datasets
Citizenship and Immigration Status
Every household member must be a U.S. citizen or a noncitizen with eligible immigration status, and the PHA verifies status during the application.4eCFR. 24 CFR Part 5 Subpart E – Restrictions on Assistance to Noncitizens Mixed families where some members are eligible and others are not can still receive prorated assistance, with the subsidy reduced to cover only the eligible members.
Criminal Background Screening
PHAs run background checks. Federal law imposes only two permanent, mandatory bars: anyone subject to lifetime sex offender registration, and anyone convicted of manufacturing methamphetamine on federally assisted property.5Federal Register. Reducing Barriers to HUD-Assisted Housing Beyond those, PHAs write their own screening policies. Some are strict about prior drug convictions or eviction history. Others consider how long ago the offense occurred and evidence of rehabilitation. If you are denied based on criminal history, ask the PHA exactly which policy provision triggered the denial.
How Rent Is Calculated
The rent formula is set by federal statute and is more nuanced than “30% of income” suggests. Your Total Tenant Payment (TTP) is the highest of three figures: 30% of monthly adjusted income, 10% of monthly gross income, or the portion of any welfare payment designated for housing costs.6Office of the Law Revision Counsel. 42 U.S. Code 1437a – Rental Payments For most families the 30% figure is highest, so that is what they pay.7U.S. Department of Housing and Urban Development (HUD). Public Housing Program
Deductions That Lower Countable Income
The word “adjusted” carries weight. Several deductions reduce countable income before the 30% calculation:
- Elderly or disabled family deduction: $525 per year if the head of household, spouse, or sole member is 62 or older or has a disability
- Dependent deduction: $480 per year for each household member who is under 18, a full-time student, or a person with a disability (other than the head of household or spouse)
- Child care expenses reasonably necessary for a family member to work, look for work, or attend school
- For elderly or disabled families, unreimbursed medical expenses above a threshold
These add up. A disabled head of household with two children in school would subtract $1,485 ($525 + $480 + $480) from annual income before the 30% calculation applies.6Office of the Law Revision Counsel. 42 U.S. Code 1437a – Rental Payments
Minimum Rent and Flat Rent
Even at very low or zero income, PHAs can charge a minimum rent of up to $50 per month. If a job loss, medical crisis, or similar hardship makes even that unaffordable, you can request a hardship exemption that temporarily waives it.8eCFR. 24 CFR 5.630 – Minimum Rent
Once a year, the PHA must also offer you a choice between income-based rent and a flat rent set at no less than 80% of the fair market rent for a comparable unit in your area.9eCFR. 24 CFR 960.253 – Choice of Rent Flat rent only makes sense when your income has risen enough that 30% of adjusted income would exceed it. If you pick flat rent and later hit financial trouble, you can switch back to income-based rent before the next annual review.
Applying and the Waiting List
Applications go through the PHA that manages public housing where you want to live. Most PHAs accept applications online, by mail, or in person, though some open their waiting lists only periodically. When the list is closed, you cannot apply until it reopens, so checking regularly matters.
You will need documentation of income, identity, and household composition: recent pay stubs or tax returns, Social Security cards and birth certificates for everyone in the household, and records of assets or public assistance. The PHA verifies citizenship or immigration status and runs the background check.
Then comes patience. Waiting lists in many cities run years long, and in high-demand areas like New York or Los Angeles, waits of a decade are not unusual. PHAs manage lists using date-and-time order combined with local preference categories that can move certain families ahead.
Common preference categories include:
- Residency: people who already live or work in the PHA’s jurisdiction
- Working families, with the same preference extended to people 62 and older and people with disabilities
- Families displaced by government action, disaster, or domestic violence
- Homeless individuals and families
- People with disabilities
Each PHA’s preferences are different and spelled out in its annual plan, a public document.10eCFR. 24 CFR 960.206 – Waiting List Local Preferences in Admission to Public Housing Program If you qualify under a preference category, say so on your application. PHAs will not always identify it for you.
Rights Once You Move In
Public housing tenants have stronger federal protections than most private-market renters. PHAs can add to these rights but cannot take them away.
Grievance Procedures
If your PHA takes an action you disagree with, such as a rent increase you think is wrong, a transfer you did not request, or a lease violation notice you want to contest, you have the right to a formal grievance process. It runs in two stages. First, you present your grievance informally at the PHA office, in writing or in person. The PHA must document the discussion and give you a written summary with the outcome and instructions for requesting a formal hearing.11eCFR. 24 CFR Part 966 – Public Housing Lease and Grievance Procedure
If that does not resolve things, you can request a hearing before an impartial hearing officer. You have the right to examine any PHA documents relevant to your case before the hearing. The PHA bears the burden of justifying its action; you need to show a legitimate claim to the relief you are seeking. The hearing officer must issue a written decision with reasoning.11eCFR. 24 CFR Part 966 – Public Housing Lease and Grievance Procedure
Eviction Protections
A PHA cannot change the locks or tell you to leave. Evictions require written notice and, in most cases, access to the grievance process before any court filing. For nonpayment of rent, federal regulations require at least 14 days’ written notice before judicial eviction proceedings begin. For other lease violations, the minimum is 30 days.12Regulations.gov. HUD-2026-0265-0001 – Lease Termination Notice Requirements These are federal floors; some PHAs and state laws provide longer notice.
Reasonable Accommodations for Disabilities
Under the Fair Housing Act, the Americans with Disabilities Act, and Section 504 of the Rehabilitation Act, PHAs must provide reasonable accommodations to applicants and tenants with disabilities at no cost to the individual. That can mean physical modifications such as grab bars, ramps, or wider doorways; policy changes such as allowing an assistance animal in a no-pet building; or adjustments to how the PHA communicates with you. You can request an accommodation at any time, not just at move-in, and HUD recommends PHAs respond within 10 business days. If the PHA believes a request would be too costly or fundamentally alter the program, it must work with you to find an alternative rather than simply deny the request.13HUD Exchange. Reasonable Accommodations in Public Housing
Recertification and Inspections
Living in public housing comes with two recurring obligations.
At least once every 12 months, the PHA reviews your household’s income and composition to recalculate rent. You report changes such as a new job, a household member moving in or out, or a change in disability status, and provide updated documentation. Families with fixed income where at least 90% comes from unchanging sources like Social Security or pensions may qualify for a streamlined review every three years, though they still certify annually that their income sources have not changed.6Office of the Law Revision Counsel. 42 U.S. Code 1437a – Rental Payments
HUD also inspects public housing properties under its NSPIRE (National Standards for the Physical Inspection of Real Estate) framework, which replaced the older REAC system. Inspectors evaluate buildings and units against health and safety standards covering smoke and carbon monoxide alarms, cooking appliance safety, electrical systems, pest infestations, water and gas leaks, mold, lead-based paint hazards, and fire safety equipment.14U.S. Department of Housing and Urban Development (HUD). REAC NSPIRE Standards If your unit has a maintenance issue the PHA is not addressing, the grievance process applies, and persistent health or safety violations are exactly the kind of issue worth escalating.
If Your Income Rises
A raise or better job does not automatically cost you your unit, but the rules tighten at a certain point. Under the Housing Opportunity Through Modernization Act (HOTMA), if your household income exceeds 120% of AMI for two consecutive years, the PHA must act.2Office of the Law Revision Counsel. 42 U.S. Code 1437n – Eligibility for Assisted Housing It can either charge a higher rent equal to the greater of fair market rent or the unit’s operating cost, or terminate the tenancy within six months.
The two-year window matters. A single good year will not trigger removal, and during that time your income-based rent simply adjusts upward at recertification. PHAs have some flexibility in how they implement these rules, so if your income is climbing, ask your PHA what its over-income policy looks like before a notice arrives.
When Public Housing Converts to Section 8: RAD
A growing number of Section 9 properties are being converted out of the program through HUD’s Rental Assistance Demonstration (RAD). More than 260,000 units have converted nationwide. Under RAD, a public housing property switches from Section 9 operating and capital funding to long-term, project-based Section 8 contracts, giving PHAs and their partners access to financing tools the Capital Fund alone cannot support.
If your building is slated for conversion, federal rules protect you in specific ways. You have the right to return to the property after renovations, and the PHA must consult with residents during conversion planning. Converted properties must continue providing the same basic tenant protections that existed under public housing.15U.S. Department of Housing and Urban Development (HUD). About RAD Public Housing Your rent calculation stays essentially the same, using the same income-based formula. The change is primarily about where the building’s operating money comes from, not about how much you pay. If you receive a RAD conversion notice, request the relocation plan and attend the resident meetings, because that is where the details that affect daily life get worked out.