HUD publishes Proposed Fair Market Rents in September and finalizes them in October. The Housing Authority is required to implement these rents in a method called Payment Standards. Each PHA can set their payment standards from 90% to 110% of the Fair Market Rents. The rental market in each Housing Authority's local jurisdiction governs this process. WHA recommends that the Payment Standard be set at 100% of Fair Market Rent.
The FMRs for unit sizes larger than four bedrooms are calculated by adding 15 percent to the four-bedroom FMR, for each extra bedroom. For example, the FMR for a five-bedroom unit is 1.15 times the four-bedroom FMR, and the FMR for a six-bedroom unit is 1.30 times the four-bedroom FMR.