Prorated Rent Calculator

Whichever one the lease names. None of the three is more correct than the others as arithmetic; they are different agreements about what a day of rent costs. One fact is worth knowing where a lease is silent: the actual-days method is the only one of the three that charges exactly one month's rent over a full month. The 30-day method charges a higher daily rate in a 31-day month and a lower one in February, and the annualised method is slightly off in both directions. That is a property of the arithmetic and not a rule about which method governs — which is a question for the lease, and for someone qualified to read it if the lease does not say. Name the method in writing before the money moves.

Because February is furthest from thirty days. A daily rate of rent divided by 28 is about 7% higher than rent divided by 30, so a fortnight in February costs meaningfully more under the actual-days method than under the 30-day method. In a 31-day month the gap runs the other way and is smaller, about 3%. On a typical rent that is real money to argue about, which is why this calculator asks for the year as well as the month — a leap February is a fourth answer again.

Usually yes. Most leases treat both endpoints of the term as inclusive: the tenant is charged for the day possession is given and for the last day of the term. That is why a move-in on the 1st of a 30-day month is thirty days of rent, not twenty-nine. Some leases and some property managers do it the other way, and on a month-end move it is a whole day of rent. The toggle on this page exists so you can match the lease rather than assume, and the difference is shown in the day-by-day table.

The same arithmetic, counted from the other end: the tenant owes from the 1st through the last day of the term rather than from the move-in day to the end of the month. The common mistake is collecting a full month's rent on the 1st and then owing a refund — which is fine if everyone expects it, and a dispute if they do not. If the lease term ends mid-month, agree the prorated figure before the last rent is due rather than settling it out of the security deposit.

No. A deposit is not rent — it is held against damage and unpaid amounts and is returned, subject to your state's rules on timing and itemisation. It is shown on this page only so the total actually changing hands at move-in is visible in one place. Many leases also collect the first full month up front alongside the prorated stub, and some collect the last month as well; neither is included here because both are lease terms rather than arithmetic.

Rounding is a lease term in the same way the method is, so the only answer this page can give is: whatever both parties wrote down. The amounts here are carried to the cent so that the agreed figure starts from an exact one. If you prefer a round number, write the round number into the lease as the agreed first payment rather than applying a rule of thumb to a calculated one — a stated amount cannot later be recomputed by someone with a different method in mind. What a lease may and may not do about rent is regulated in some jurisdictions, and nothing here accounts for that.