Prorated Rent Calculator
Moving a tenant in (or out) mid-month? Enter the monthly rent and the dates, pick a calculation method, and get the exact prorated amount — with the math shown so you can put it in the lease or move-in letter.
Stop doing rent math by hand
LandlordPro prorates move-ins automatically, tracks every payment, applies late fees by your rules, and builds your Schedule E at tax time. Free to start — up to 4 units.
Try LandlordPro free →How prorated rent is calculated
Actual days in month: daily rate = monthly rent ÷ days in that month. A $1,500 unit in June (30 days) is $50/day; move in June 16 and the tenant owes 15 days × $50 = $750. This is the most widely used and most defensible method.
30-day (banker's) month: daily rate = monthly rent ÷ 30 regardless of the month. Produces a consistent daily rate year-round; commonly used by property managers for simplicity.
Annual daily rate: daily rate = (monthly rent × 12) ÷ 365. Less common, but some leases specify it; it slightly smooths the February/31-day-month variation.
Whichever method you use, two rules keep you out of disputes: write the method into the lease, and apply it the same way for move-ins and move-outs.
Frequently asked questions
Do I count the move-in day itself?
Yes — standard practice is the tenant pays for the move-in day through the last day of the month, inclusive. This calculator counts the move-in date as a paid day.
Should the first month or the second month be prorated?
Many landlords collect a full first month at signing and prorate the second month instead — it front-loads cash and proves payment ability. Either is fine; just document it.
Is proration legally required?
Generally no — it's a lease term, not a statute. A few jurisdictions impose proration in specific scenarios. When in doubt, check your state landlord-tenant act.
This calculator is provided for convenience and general information only and is not legal or financial advice. Verify amounts and lease terms for your situation.