Prorated Rent Calculator
Calculate the exact amount owed for a partial month — and generate a ready-to-send message for your tenant.
Calculates rent from move-in day through end of month.
Enter a rent amount and date above to see the calculation.
Tired of manual math every month?
Stoopkeep tracks your rental expenses year-round and exports your Schedule E automatically.
How prorated rent works
What is prorated rent?
Prorated rent is the partial-month amount owed when a tenant moves in or out on a day other than the 1st or last day of the month. Instead of paying a full month's rent, they pay only for the days they actually occupy the unit.
Actual days vs. Banker's 30-day method
The actual days method divides by the real number of days in the month — 28, 29, 30, or 31. This is the most common and legally recognized method in most US states. The Banker's 30-day method always divides by 30, which simplifies the math but can produce slightly different results in longer or shorter months.
Is prorated rent required by law?
In most US states, landlords are required to prorate rent fairly when a tenant moves in or out mid-month. Always check your state's specific landlord-tenant laws, and document the agreed amount in writing.