How to Add a Family Member to Your Section 8 Voucher

What happens when your household changes

If someone moves into your home — a child, a parent, a partner, or another relative — you need to report it to your public housing agency (PHA) before they live there. The agency will not automatically know, and living with an unreported household member can result in losing your voucher. The process for adding them depends on who they are, how long they will stay, and whether your voucher size allows for more people.

Your voucher is issued for a specific household size. A family of three gets a different voucher than a family of four, because the rent subsidy amount changes. When your actual household grows, your voucher size may need to grow with it — but only if space is available in your PHA's program.

Key Takeaways

• You must report any new household member to your PHA in writing before they move in, not after.
• Your PHA will recalculate your rent based on the new household size and income, which may raise or lower what you pay.
• Adding someone may not be possible if your PHA has no larger vouchers available, and you may be placed on a waiting list.
• Temporary residents (guests staying less than 30 days) do not require PHA approval, but permanent additions do.
• Your lease with your landlord must also be updated to include the new household member's name.

Reporting a new household member to your PHA

Contact your PHA's Section 8 office as soon as you know someone will be moving in. Do not wait until they arrive. Most PHAs require written notice — a phone call alone is not enough. Ask for the form your PHA uses to report household changes; it is often called a "Household Composition Change Form" or similar, though the exact name varies by agency.

On the form, you will list the new person's name, date of birth, relationship to you, and expected move-in date. You will also need to provide proof of their identity (a birth certificate, ID, or passport) and proof of their relationship to you if they are not your spouse or child (a marriage certificate, adoption papers, or a signed statement from both of you). Some PHAs also require proof of income for the new household member, even if they have no income.

Submit the form to your PHA in person, by mail, or by email — whichever your agency accepts. Keep a copy for yourself and ask for a receipt or confirmation that they received it. Do not assume they have it just because you sent it.

How your rent and subsidy change

Once your PHA approves the new household member, they will recalculate your rent based on the larger household size and the combined household income. In most cases, your portion of the rent (what you pay out of pocket) will change, and the subsidy amount (what the PHA pays to the landlord) will change.

Whether your rent goes up or down depends on your income and your PHA's rent calculation rules. If the new person has no income, your rent may stay the same or go down slightly. If they have income, your rent will likely go up. Your PHA will send you a new lease addendum or a new lease showing the updated rent amount. You and your landlord must both sign it before the new household member moves in.

The timing of this recalculation varies. Some PHAs do it within two weeks; others take a month or longer. Ask your PHA when you can expect the new lease and the updated rent amount so you can plan accordingly.

When your PHA cannot add the new household member

If your PHA does not have a larger voucher available, they may not be able to add the person right away. This happens when the program is fully subscribed — meaning every voucher size is in use and there is no room to issue a larger one. In this case, your PHA will place you on an internal waiting list for a larger voucher.

While you wait, the new household member cannot legally live with you under your current voucher. This puts you in a difficult position: you cannot move forward with the addition, but you also cannot ignore it. Ask your PHA how long the waiting list typically is and whether they will contact you when a larger voucher becomes available. Some PHAs prioritize families with new children; others work through the list in order.

If waiting is not realistic for your situation, you may need to explore other housing options while you remain on the waiting list. This is a conversation worth having with your PHA caseworker, who may know of other programs or resources in your area.

Updating your lease with your landlord

Your lease agreement with your landlord must list everyone in the household. When you add a family member, your landlord needs to know and agree. In most cases, this is a simple process: your PHA will provide a lease addendum (an addition to your existing lease) that adds the new person's name and updates the rent amount. You, your landlord, and the new household member (if they are an adult) all sign it.

If your landlord refuses to sign the addendum or refuses to allow the new person to move in, contact your PHA immediately. Your PHA can sometimes intervene or help you understand your rights. In rare cases, if the refusal is discriminatory, you may have legal recourse — but this requires documentation and often legal help.

Do not move the new person in before the lease is signed. If your landlord discovers an unreported household member, they can file for eviction, and your PHA can terminate your voucher.

Temporary residents and guests

Not every person who stays in your home needs PHA approval. A guest staying fewer than 30 consecutive days — a friend visiting, a relative staying for a holiday, someone in temporary crisis — does not require you to notify your PHA. However, if that person's stay extends beyond 30 days, they become a permanent household member and you must report them.

The 30-day rule is a guideline, not a hard cutoff. If someone stays 29 days, leaves for a week, and comes back for another month, your PHA may consider that a pattern of permanent residence and require you to report them. If you are unsure whether someone's stay crosses the line, ask your PHA caseworker. It is better to ask than to guess and lose your voucher.

What to do if your household member is not approved

If your PHA denies the addition — which is rare but can happen — they must give you a written reason. Common reasons include income limits (the new household member's income pushes the family over the program's limit), criminal history (some PHAs have restrictions), or immigration status (federal rules restrict vouchers to U.S. citizens and certain legal residents).

If you disagree with the denial, you have the right to request a hearing with your PHA. This is called an informal hearing or a grievance hearing, depending on your agency's terminology. You will have a chance to present your side and provide documents or witnesses. Ask your PHA for their hearing procedures and deadlines — you usually have a limited time to request one.

If the denial is based on immigration status, the rules are federal and your PHA cannot override them. If it is based on income or criminal history, your PHA has some discretion, and a hearing may result in approval or a compromise (such as a waiting list placement).

Frequently Asked Questions

Can I add my adult child to my voucher?

Yes, if your PHA has a larger voucher available and your household income does not exceed the program's limit. Your adult child will need to provide proof of identity and income. Some PHAs treat adult children differently than minor children, so ask your caseworker about your agency's specific rules.

What if the new household member has a criminal record?

Your PHA will run a background check. Federal law prohibits vouchers for people with certain convictions (drug manufacturing, sex offenses). Other convictions are reviewed case-by-case. Your PHA will tell you whether the person is approved. If denied, you can request a hearing to present context or mitigating information.

Do I have to report my partner if we are not married?

Yes. Your PHA considers anyone living in the household permanently as a household member, regardless of marital status or relationship. Failing to report a partner can result in voucher termination.

What happens if I add someone without telling my PHA?

If your PHA discovers an unreported household member during an inspection or through another means, they can terminate your voucher. Your landlord can also evict you for violating the lease. Always report changes before they happen.

How long does it take to add someone after I report them?

Most PHAs complete the process within two to four weeks, though some take longer. This includes the background check, income verification, and lease update. Ask your PHA for a timeline when you submit your report so you know what to expect.