Prorated Rent Calculator
Not legal advice. This tool produces an estimate built
from the cited state statutes, which were accurate as of the verified date shown. Laws change,
cities and counties may add stricter rules not covered here, and some states require specific
forms, statutory language, or delivery methods this result does not replicate. Review the rule
text and citations on this page — and, when in doubt, a licensed attorney in your state — before
relying on it.
Result
Actual-days is the most common and the most defensible when the lease is silent; the 30-day
("banker's month") method overcharges slightly in 31-day months and undercharges in February;
the 365-day method uses one flat daily rate all year. Say which method applies in the lease.