How Your Section 8 Rent Payment Is Calculated

What you pay under Section 8 depends on your income, not the market rent

Under Section 8, you pay a percentage of your household income toward rent, and the voucher covers the difference up to a limit. The exact percentage and the income calculation vary by your local housing authority, but the basic formula is the same everywhere: your share of rent is typically 30 percent of your adjusted monthly income, though some housing authorities use 28 percent or allow you to pay less if you choose a cheaper unit.

Your income is not your gross pay. The housing authority subtracts deductions for dependents, elderly household members, medical expenses, and childcare before calculating your rent share. This means two people earning the same salary can pay different amounts depending on family size and expenses.

The voucher itself has a payment standard — the maximum amount the housing authority will pay the landlord. If you find a unit renting for less than the payment standard, you pay 30 percent of your income and the voucher covers the rest. If the unit rents for more than the payment standard, you pay the difference on top of your 30 percent share, which is why finding a unit at or below the payment standard matters.

Key Takeaways

• You pay approximately 30 percent of your adjusted household income toward rent; your local housing authority sets the exact percentage.
• Adjusted income subtracts deductions for dependents, medical costs, and childcare, so your rent share depends on family size and expenses, not just gross earnings.
• The voucher covers rent up to your housing authority's payment standard, so choosing a unit below that standard keeps your out-of-pocket cost lower.
• If a unit rents above the payment standard, you pay the overage yourself on top of your 30 percent income share.
• Your rent payment changes when your income changes, and the housing authority recalculates it at your annual recertification.

How adjusted income is calculated

The housing authority starts with your gross household income — all earned and unearned income from every household member. Then it subtracts specific deductions in this order: $480 for each dependent (the amount varies slightly by year and housing authority), $400 for elderly or disabled household members, actual childcare costs up to a limit, actual medical expenses for elderly or disabled members above a threshold, and sometimes a utility allowance if you pay utilities separately.

The result is your adjusted income. If your household has no dependents and no medical expenses, your adjusted income is close to your gross income. If you have three children and pay $600 a month for childcare, your adjusted income is $480 × 3 plus $600 subtracted from your gross, which can lower your rent share significantly.

You report income changes to your housing authority, and they recalculate your rent at your annual recertification. Some housing authorities also allow interim recertifications if your income drops — meaning you can request a rent reduction before your annual review if you lose a job or have a major income loss.

Payment standards and how they affect what you pay

Each housing authority sets a payment standard for each bedroom size — a one-bedroom unit has one standard, a two-bedroom has another, and so on. The payment standard is usually based on the local fair market rent, which the U.S. Department of Housing and Urban Development publishes annually, but housing authorities can set it lower or higher within federal limits.

If you find a unit renting for $1,200 and your payment standard is $1,400, the voucher pays $1,200 minus your 30 percent share. If the unit rents for $1,600 and the payment standard is $1,400, the voucher pays only $1,400 minus your 30 percent share, and you pay the extra $200 out of pocket. This is called rent overage, and it is why landlords sometimes refuse Section 8 tenants — they want to rent above the payment standard and know most tenants cannot afford the overage.

Payment standards change annually, usually in the fall. Your housing authority will notify you if your payment standard increases or decreases, which affects how much the voucher pays going forward.

What happens when your income changes

If your income increases, your rent share increases at your next recertification. If you earn $2,000 a month and pay $600 in rent, a raise to $2,500 a month means your new rent share is $750 (30 percent of $2,500), assuming no new deductions. The housing authority will send you a new lease addendum showing the new amount.

If your income decreases — you lose a job, hours are cut, or a household member moves out — you can report it to your housing authority. Some allow you to request an interim recertification immediately rather than waiting for your annual review. If approved, your rent share drops right away. This is one of the few times you can get a rent reduction outside the annual cycle.

You must report income changes within a set timeframe, usually 10 to 30 days depending on your housing authority. If you do not report an increase, the housing authority will discover it at recertification and may ask you to repay the difference retroactively. If you do not report a decrease, you will keep paying the higher amount until recertification.

The difference between your share and the voucher amount

Your rent payment has two parts: what you pay, and what the voucher pays. You pay 30 percent of your adjusted income (or whatever percentage your housing authority uses). The voucher pays the rest, up to the payment standard.

If your adjusted income is $1,500, you pay $450. If the unit rents for $1,200 and the payment standard is $1,400, the voucher pays $750 ($1,200 minus your $450). If the unit rents for $1,600, the voucher still pays only $950 ($1,400 payment standard minus your $450), and you pay $650 out of pocket.

The voucher amount goes directly to the landlord each month. You pay your share to the landlord as well. The landlord receives the full rent from both sources combined. If you stop paying your share, the landlord can evict you even though the voucher is paying — the voucher does not cover your portion.

How to estimate what you will pay

To estimate your rent, gather your most recent pay stubs or income documentation for all household members. Add up gross monthly income. Subtract $480 for each dependent, $400 for each elderly or disabled member, and any actual childcare or medical expenses you can document. Multiply the result by 0.30 (or 0.28 if your housing authority uses 28 percent). That is your estimated rent share.

Then find the payment standard for your area and bedroom size on your housing authority's website or by calling them. If you find a unit at or below the payment standard, subtract your rent share from the rent to see what the voucher covers. If the unit is above the payment standard, you will pay the overage yourself.

Keep in mind this is an estimate. Your actual rent depends on the exact deductions your housing authority allows, which can differ from what you calculate. The housing authority will give you a final number after you submit your recertification paperwork.

Frequently Asked Questions

Can I pay less than 30 percent of my income if I find a cheap apartment?

Yes. If you find a unit renting well below the payment standard, you can choose to pay less than 30 percent of your income. Some housing authorities allow you to pocket the savings; others require you to pay the standard 30 percent even if the unit is cheaper. Ask your housing authority about their policy before signing a lease.

What if my landlord wants me to pay more than the payment standard?

You can negotiate, but the voucher will not cover it. You would pay your 30 percent share plus the full overage yourself. Many tenants cannot afford this, so landlords who demand above-standard rent often lose Section 8 applicants. You are not required to take a unit above the payment standard.

Do I have to report a small income increase right away?

Yes. You are required to report income changes within your housing authority's timeframe, usually 10 to 30 days. Failing to report can result in you owing back rent at recertification. It is better to report and have your rent increase than to hide it and face a larger bill later.

What deductions lower my adjusted income the most?

Dependent deductions ($480 per child) and childcare costs are usually the largest. If you have three children and pay $600 monthly for childcare, those deductions reduce your adjusted income by $2,040 per month, which significantly lowers your rent share. Medical expenses for elderly or disabled members can also be substantial if documented.

Can my rent go down if I lose my job?

Yes, and you should report it immediately. Many housing authorities allow interim recertifications for income decreases, meaning you can request a rent reduction before your annual review. Your new rent share will be based on your reduced income, and the change takes effect once approved.