Calculate prorated rent for partial-month move-ins or move-outs. See daily rates, due-at-signing totals, occupancy calendars, and compare proration methods.
When you don't move in on the first of the month, you only pay rent for the days you actually occupy the apartment — this is prorated rent. A $2,000/month apartment with a March 15th move-in means you pay for 17 days: $2,000 ÷ 31 × 17 = $1,096.77. Combined with a security deposit and first full month's rent, your move-in costs add up fast.
Proration is straightforward but landlords may use different calculation methods: dividing by actual days in the month (most common and fair), assuming a 30-day month (banker's method), or using a 365-day year. These small differences can mean $20-50 more or less. Knowing which method your landlord uses — and what the correct amount should be — prevents overpaying.
This calculator handles both move-in and move-out proration, shows an occupancy calendar so you can visualize exactly which days you're paying for, and provides the complete due-at-signing breakdown. The move-in day comparison table helps you negotiate timing — moving in just a few days later can save meaningful money on your first month.
Prorated rent changes the real cash you need on move-in day, especially when you add security deposit, first full month's rent, and any move-in fees. Use this calculator to confirm the charge, compare move-in dates, and see how much timing affects your upfront cost.
Daily Rate = Monthly Rent ÷ Days in Month Prorated Rent = Daily Rate × Occupied Days Move-In: Occupied Days = Days in Month − Move-In Day + 1 Move-Out: Occupied Days = Move-Out Day Due at Signing = Prorated Rent + Security Deposit + Last Month + App Fee + First Full Month
Result: Prorated Rent: $1,096.77 — Daily Rate: $64.52 — 17 days occupied
Daily rate = $2,000 ÷ 31 = $64.52. Occupied days (Mar 15-31) = 17. Prorated rent = $64.52 × 17 = $1,096.77. Savings vs full month = $903.23. Due at signing with a $2,000 deposit, $50 application fee, and the next full month = $1,096.77 + $2,000 + $50 + $2,000 = $5,146.77.
Proration matters any time your lease starts or ends mid-month. The exact charge depends on the landlord’s method, the number of days in the month, and whether your lease counts the move-in or move-out day as occupied.
Check the proration method in writing, confirm whether utilities or fees are bundled into move-in costs, and make sure the due-at-signing total matches the lease paperwork before you send payment.
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This page calculates daily rent from the entered monthly rent and selected month length, then multiplies it by occupied days to produce the prorated amount. For move-ins it counts occupancy from the move-in date through the end of the month; for move-outs it counts from day 1 through the move-out date. It also shows banker-style 30-day and 365-day annualized comparisons, plus due-at-signing totals when deposit, last-month, and application-fee inputs are included.
The result is a planning worksheet, not a lease-interpretation engine. Landlords may define proration differently in the lease, may round differently, and may treat move-in or move-out day counting differently, so the signed lease controls the final charge.
Most landlords use: Monthly Rent ÷ Days in Month × Days Occupied. For a $1,500/month apartment with move-in on the 20th of a 30-day month: $1,500 ÷ 30 × 11 = $550. Some use a 30-day banker's month or 365-day year method instead.
Most states require landlords to only charge for days occupied, but practices vary. Always confirm proration in your lease. If a landlord tries to charge a full month for a mid-month move-in, negotiate or check local tenant laws.
Typically: prorated first month + security deposit (1-2 months) + possibly last month's rent + application fee + any move-in fees. This can total 2-4 months of rent. Get the exact breakdown in writing before signing.
Yes. If your lease ends mid-month, you should only pay rent through your last day. If you've prepaid the full month, the landlord must refund the prorated difference. Check your lease for the exact move-out proration terms.
The "actual days" method (rent ÷ actual days in month × occupied days) is most common and generally the fairest. The "30-day" banker's method slightly overcharges in months with fewer than 30 days and slightly undercharges in months with 31 days.
Absolutely. Moving in on the 20th instead of the 15th saves 5 days × daily rate. On a $2,500/month apartment in a 30-day month, that's $417 saved. If the apartment is vacant, the landlord may prefer an earlier move-in, but it's always worth asking.