Unlike emergency unemployment aid, rental relief programs don’t show many signs of fraud. But efforts are underway in at least five states to claw back improperly issued money, sowing confusion among landlords and tenants.

State and local agencies that distributed federal aid to renters facing eviction during the pandemic are now scrambling to claw back millions of dollars in overpayments.

Officials in at least five states have been sending tenants and landlords a flurry of letters, typically citing clerical errors or other bureaucratic mix-ups, demanding that portions of the temporary relief money be returned. Some of the notices ask for five-figure sums within weeks.