Does the PHA guarantee the tenant's portion?

No. The agency pays only the HAP portion. Collecting the tenant share is the landlord's responsibility under the lease.

What happens if the tenant's income rises?

At the next recertification the TTP increases and the HAP decreases. Your total rent is unchanged unless a rent increase is separately approved.

When is the first HAP payment sent?

Usually on the first business day of the month after the HAP contract is executed, often including a prorated amount for the partial first month.

Yes. Payments are abated if the unit fails inspection and is not repaired within the agency's cure window, and they end if the family loses eligibility or moves.

Is the utility allowance paid to me?

No. When the tenant pays utilities, the allowance reduces the contract rent you can charge and, if it exceeds the tenant's share, can result in a utility reimbursement to the family.

HAP Payment Simulator

HAP Simulator: How the Landlord Check and the Tenant Share Are Actually Split

The Housing Assistance Payment simulator splits a proposed rent into the portion the PHA sends you by direct deposit and the portion the tenant owes you each month. It applies the Total Tenant Payment rules, the utility allowance offset, and the 40% affordability cap that applies at initial lease-up.

Landlords use it to understand collection risk: the larger the tenant share, the more of your rent roll behaves like an ordinary market rental. Tenants use it to test whether a unit is affordable before touring it.

Worked example: $1,400 rent, $22,000 annual adjusted income

A voucher household applying for a 2-bedroom unit where the tenant pays electricity.

Inputs

Contract rent: $1,400
Utility allowance: $95
Payment standard (2 BR): $1,520
Adjusted annual income: $22,000
Gross monthly income: $1,900

Step-by-step math

Gross rent: $1,400 + $95 = $1,495
Total Tenant Payment: greater of 30% of $1,833 adjusted monthly ($550) or 10% of $1,900 gross ($190) = $550
HAP to landlord: min(payment standard, gross rent) - TTP = $1,495 - $550 = $945
Tenant pays landlord: $1,400 - $945 = $455 The tenant also absorbs the $95 utility bill directly.
40% cap check: $550 / $1,833 = 30% of adjusted income Under 40%, so the PHA may approve at initial lease-up.

Result: $945 from the PHA by EFT, $455 collected from the tenant, $1,400 total.

Two thirds of this rent roll is government-paid and effectively guaranteed while the household remains eligible and the unit stays compliant. The remaining $455 is ordinary tenant credit risk, and it is the part you screen for, document, and enforce like any other lease.

What this output means

Total Tenant Payment (TTP): The greater of 30% of adjusted monthly income or 10% of gross monthly income, with a minimum rent set locally, commonly $50.
HAP: The subsidy the PHA pays you, equal to the lesser of the payment standard or gross rent, minus the TTP.
Tenant rent to owner: Contract rent minus HAP. This is the only portion you collect from the household.
40% cap: At initial lease-up the family share of gross rent cannot exceed 40% of adjusted monthly income, which can block an otherwise compliant rent.

How to act on this result

Screen for the tenant share, not the full rent. Verify the household can consistently pay the specific dollar amount the simulator shows.
Confirm the PHA's EFT calendar and the prorated first payment; the initial HAP often arrives partial and one cycle late.
Model an interim recertification: if the household's income rises, your HAP falls and the tenant share rises, shifting risk toward the tenant.
Keep the tenant-share amount in the lease and ledger separately so nonpayment of the tenant portion is documented cleanly for any future action.

Limitations of this tool

Adjusted income is not gross income: dependent, elderly, disability, childcare, and medical deductions all reduce it, and only the PHA computes the certified figure.
Minimum rent, hardship exemptions, and local utility allowance schedules vary by agency.
The simulator assumes a standard tenant-based voucher; project-based vouchers, homeownership vouchers, and special-purpose programs follow different rules.
Payment timing, prorations, and abatement policies during failed inspections are agency-specific and can interrupt HAP for months.
Results are an estimate for planning. The PHA's HAP contract is the only authoritative split.

Calculating a High Income Household with Tenant Paid Utilities

Consider a scenario involving a 3-bedroom home where the local payment standard is $2,100 and the landlord requests a contract rent of $1,950. In this case, the tenant is responsible for all utilities, and the agency provides a utility allowance of $180. To find the gross rent, you add the $1,950 contract rent to the $180 allowance, resulting in $2,130. Because this gross rent exceeds the $2,100 payment standard by $30, the tenant must pay that entire difference out of pocket in addition to their base contribution. The household has a certified adjusted annual income of $48,000, which creates an adjusted monthly income of $4,000.

The Total Tenant Payment is calculated as 30% of that $4,000 monthly income, which equals $1,200. To determine the HAP payment, the agency takes the lower of the payment standard or the gross rent and subtracts the TTP. Here, they take the $2,100 payment standard and subtract the $1,200 TTP to arrive at a HAP of $900. The tenant rent to the owner is then the $1,950 contract rent minus the $900 HAP, leaving the landlord to collect $1,050 from the family. Finally, the PHA verifies the 40% affordability cap by ensuring the family share of $1,230 does not exceed 40% of their $4,000 monthly income, which it does not.

Variables That Can Change the Final HAP Distribution

While this simulator provides a reliable baseline for standard vouchers, specific household circumstances can alter the actual check you receive. One common variable is the minimum rent policy, which varies by agency and can range from $0 to $75. If a household has very low or zero income, this floor ensures the landlord receives at least a small contribution from the tenant. Additionally, if a family qualifies for a hardship exemption due to a sudden loss of income, the PHA may temporarily lower the tenant share and increase the HAP portion to prevent eviction, though this requires the landlord to wait for a processed interim recertification.

Another factor that complicates the math is the utility reimbursement. If the utility allowance for a unit is $200 but the household TTP is only $150, the tenant pays $0 to the landlord. The PHA then pays the landlord the full contract rent and issues a $50 utility reimbursement check directly to the tenant to help them pay the utility provider. You should verify these specific splits by requesting the Rent Reasonableness determination and the HAP Register from the agency caseworker. These documents confirm exactly how the agency evaluated your specific unit against local comps and how they applied the current year utility schedule.

Moving from the Simulator to the HAP Contract

Once the simulator shows that a proposed rent is likely to be approved under the 40% affordability cap, your next step within the next 7 days is to submit the Request for Tenancy Approval to the agency. You must ensure the utility responsibilities listed on that form match exactly what you entered into the simulator, as a single error regarding who pays for heat or water will change the HAP split and could trigger a lease denial. After the unit passes inspection, the agency will generate the formal HAP Contract, which is the legally binding document that codifies these numbers. If the numbers on the final contract differ from your simulation, you must resolve the discrepancy before signing.

For a deeper dive into the specific legal clauses and the 3 parts of the federal agreement, landlords should consult the HAP Contract Explained guide. This companion resource details the landlord obligations regarding unit maintenance and the specific timelines for payment processing. Once the contract is signed, the split between the government and the tenant is locked until the next annual recertification or a significant change in household income. Landlords are encouraged to keep a copy of the finalized HAP split in the tenant file to ensure the ledger correctly reflects which party is responsible for any outstanding balances throughout the duration of the tenancy.

Read the full method: HAP Contract Explained walks through the same math in depth, with sourcing notes and edge cases.

HAP Payment Simulator FAQ

Does the PHA guarantee the tenant's portion?: No. The agency pays only the HAP portion. Collecting the tenant share is the landlord's responsibility under the lease.
What happens if the tenant's income rises?: At the next recertification the TTP increases and the HAP decreases. Your total rent is unchanged unless a rent increase is separately approved.
When is the first HAP payment sent?: Usually on the first business day of the month after the HAP contract is executed, often including a prorated amount for the partial first month.
Can HAP be stopped?: Yes. Payments are abated if the unit fails inspection and is not repaired within the agency's cure window, and they end if the family loses eligibility or moves.
Is the utility allowance paid to me?: No. When the tenant pays utilities, the allowance reduces the contract rent you can charge and, if it exceeds the tenant's share, can result in a utility reimbursement to the family.