Prorated Rent CalculatorPro rata rent for move-in, move-out and partial months
Pick your move-in or move-out date and see exactly what a partial month of rent should cost. You get all three proration methods landlords use side by side, a calendar of the days you’re paying for, and a ready-to-send note for your landlord or tenant.
By Manzoor Ahmad · 13+ years of web development & SEO experienceLast updated: October 19, 2026
Prorated rent due
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Enter your rent and a date.
Your breakdown
| Month | Days paid | Daily rate | Rent | Charges | Total |
|---|
Ready-to-send proration note
What is prorated rent? Prorated rent is the portion of a month’s rent you pay when you occupy a rental for only part of that month — usually because you moved in or out mid-month. To calculate it, divide the monthly rent by the number of days in the month to get a daily rate, then multiply by the days you live there. For example, moving in on October 19 at $1,500 a month means 13 days at $48.39 a day, or $629.03.
How to Use the Prorated Rent Calculator
- Choose the situationMove-in for a first partial month, move-out for a final partial month, or date range when a stay starts and ends mid-month or spans several months.
- Enter rent and the dateType your full monthly rent and the move date. Add fixed monthly extras such as parking or pet rent if your lease prorates them too.
- Match your lease’s methodPick actual days, a 365-day year or a 30-day banker’s month. The calculator shows all three so you can see whether the choice changes your bill.
- Check the calendar and send the noteThe highlighted days are the days you pay for. Copy the pre-written note to confirm the amount with your landlord or tenant in writing.
Prorated Rent Formula: Three Methods
Every prorated rent calculation is daily rate × days occupied. The only thing that changes between methods is how the daily rate is worked out — and that choice can move the bill by $20 or more on a typical rent.
1. Actual days in the month: Monthly rent ÷ days in that month × days occupied
2. 365-day year: (Monthly rent × 12) ÷ 365 × days occupied
3. 30-day banker’s month: Monthly rent ÷ 30 × days occupied
| Method | Daily rate on $1,500 rent | 13 days in October | Who tends to use it |
|---|---|---|---|
| Actual days | $48.39 (October, 31 days) | $629.03 | Most residential leases and property-management software |
| 365-day year | $49.32 (every month) | $641.10 | Landlords who want the same daily rate all year |
| 30-day banker’s month | $50.00 (every month) | $650.00 | Some commercial leases and older lease templates |
The Month-Length Effect: Why February Flips the Math
Here’s the detail most prorated rent guides miss: which method is cheapest for the tenant depends on the month. The actual-days method divides by the real month length, so its daily rate is lowest in 31-day months and highest in February. The 365-day and 30-day methods use the same daily rate all year. That means the method that saves a tenant money in October can cost them more in February.
Move-in example: October 19, 2026
Rent $1,500, move-in day counted, so October 19–31 = 13 days.
- Actual days: $1,500 ÷ 31 × 13 = $629.03 (cheapest)
- 365-day year: $18,000 ÷ 365 × 13 = $641.10
- Banker’s month: $1,500 ÷ 30 × 13 = $650.00
Move-out example: February 12, 2027
Rent $1,500, last day counted, so February 1–12 = 12 days in a 28-day month.
- Actual days: $1,500 ÷ 28 × 12 = $642.86 (most expensive)
- 365-day year: $18,000 ÷ 365 × 12 = $591.78
- Banker’s month: $1,500 ÷ 30 × 12 = $600.00
The takeaway: if you’re negotiating a lease, the “fair” method isn’t fixed. Tenants moving in or out in February generally come out ahead with a 365-day or 30-day rate, while 31-day months favor the actual-days method. Whatever you agree on, write the method into the lease so nobody has to argue about it later.
Daily Rent Rate by Month Length
Use this quick-reference table to estimate prorated rent in your head: find your rent, pick the column for your method or month length, and multiply by the number of days you’re occupying the unit.
| Monthly rent | 28-day Feb | 29-day Feb | 30-day month | 31-day month | 365-day year |
|---|---|---|---|---|---|
| $1,000 | $35.71 | $34.48 | $33.33 | $32.26 | $32.88 |
| $1,250 | $44.64 | $43.10 | $41.67 | $40.32 | $41.10 |
| $1,500 | $53.57 | $51.72 | $50.00 | $48.39 | $49.32 |
| $1,750 | $62.50 | $60.34 | $58.33 | $56.45 | $57.53 |
| $2,000 | $71.43 | $68.97 | $66.67 | $64.52 | $65.75 |
| $2,500 | $89.29 | $86.21 | $83.33 | $80.65 | $82.19 |
| $3,000 | $107.14 | $103.45 | $100.00 | $96.77 | $98.63 |
The 30-day column is also the banker’s-month rate for every month of the year. Daily rates are rounded to the cent; the calculator keeps full precision until the final total.
Move-In and Move-Out Proration: What to Check Before You Pay
The math is simple; the disputes come from the assumptions around it. These are the points tenants and landlords most often disagree on, and how to settle them before money changes hands.
For tenants
- Read the rent clause first. Proration isn’t automatic everywhere — your lease and local law decide whether a partial month is prorated at all.
- Ask whether the move day counts. Counting the key-handover day adds one full day of rent; on $1,500 that’s about $48–$54.
- Watch for late-month move-ins. Many landlords collect the prorated amount plus next month’s full rent at signing when you move in after roughly the 20th–25th. Budget for both.
- Prorated rent isn’t your deposit. Security deposits and one-time fees are not prorated; only recurring monthly charges are.
For landlords and property managers
- Name the method in the lease. “Rent for any partial month will be prorated on a daily basis using the actual number of days in that month” removes nearly every dispute.
- Prorate add-ons consistently. Apply the same method to pet rent, parking and storage so the ledger reconciles.
- Align move-out with notice periods. A tenant who gives notice mid-month may still owe rent through the end of the notice period, regardless of the move-out date.
- Put the figure in writing. Send the calculation with the daily rate shown; the note generator above does this in one click.
Common Prorated Rent Mistakes
| Mistake | What goes wrong | Fix |
|---|---|---|
| Dividing by 30 in every month | Overcharges in 31-day months and undercharges in February versus actual days | Use the method your lease names; compare all three here |
| Off-by-one day count | Moving in on the 19th of a 31-day month is 13 days, not 12 | Count inclusively: last day − first day + 1 |
| Forgetting leap years | February 2028 has 29 days, which lowers the actual-days rate | The calculator reads the real calendar for any year |
| Prorating one-time fees | Deposits and application fees get split by day | Only prorate recurring monthly charges |
| Rounding the daily rate first | Cents add up across long partial months | Round only the final total |
Related Rent and Property Calculators
Proration answers what you owe for a partial month. These tools answer the questions that usually come next.
Prorated Rent FAQs
Divide the monthly rent by the number of days in the month to get a daily rate, then multiply by the number of days you occupy the unit. For $1,500 rent in a 31-day month with 13 days occupied: $1,500 ÷ 31 × 13 = $629.03.
Count the days from the 1st of the month through your move-out date (including it, if your lease charges for that day), then multiply by the daily rate. Moving out on February 12, 2027 at $1,500 rent is 12 days × $53.57 = $642.86 using actual days. Check your notice period too — you may owe rent through the end of it.
Usually, yes. Most leases treat the day you receive the keys as an occupied day, so it is included in the prorated count. If your lease starts the day after key handover, untick the move-day option in the calculator to exclude it.
Not universally. Whether a partial month must be prorated depends on your lease and on state or local landlord-tenant law. Where the lease is silent, many landlords prorate by actual days as a matter of practice. Check your lease and your local tenant resources before assuming either way.
A banker’s month treats every month as 30 days, so the daily rate is always monthly rent ÷ 30. It is simple to apply, but it charges slightly more than actual days in 31-day months and less in February.
It depends on the month. In 31-day months the actual-days method gives the lowest daily rate. In February it gives the highest, so the 365-day or 30-day method is cheaper. In 30-day months, actual days and the banker’s month produce the same result.
Landlords often collect the next full month at signing when a tenant moves in late in the month, so rent is due on the 1st as usual without a second payment days later. The total is the prorated amount plus one full month. Turn on the “collects next month’s rent” option to see the total due at move-in.
Split the stay at the month boundary and prorate each month separately with its own number of days. Use the Date range mode: enter the first and last day occupied and the calculator prices each partial month, charges full rent for any complete months in between, and adds it up.
Recurring monthly charges such as pet rent, parking and storage are usually prorated with the same method as base rent. One-time charges — security deposits, application fees, move-in fees — are not prorated.
In a leap year February has 29 days, so the actual-days daily rate is slightly lower than in a 28-day February — $51.72 instead of $53.57 on $1,500 rent. The 365-day and banker’s methods are not affected. The calculator uses the real calendar, so leap years are handled automatically.
Often, yes — especially before you sign. You can ask to change the method, exclude the move-in day, or align the lease start date with your actual move. Showing the landlord the calculation for each method makes the conversation concrete.
Yes. It is free, needs no account and runs entirely in your browser. The rent, dates and charges you enter are not sent to DexoCalc or stored.
Manzoor Ahmad
13+ years of web development & SEO experience · Founder, DexoCalc
Manzoor builds and maintains every DexoCalc calculator. This tool uses the real calendar for each month and year, applies the three proration conventions found in residential and commercial leases, and keeps full precision until the final total so the result matches a careful hand calculation.
Sources & tenant resources
Results are estimates for planning and do not replace your lease or local law. Proration rules, notice periods and late-month practices vary by lease and jurisdiction — confirm the method and amount in writing with your landlord or property manager.