Rent Proration
Calculator
Results
- Daily rent
- 50
- Prorated rent due
- 600
- Rent not billed
- 900
- Share of the month occupied (%)
- 40
Property management results
| Daily rent | 50 |
| Prorated rent due | 600 |
| Rent not billed | 900 |
| Share of the month occupied (%) | 40 |
formula-map diagram
- Daily rent
- 50
- Prorated rent due
- 600
- Rent not billed
- 900
- Share of the month occupied (%)
- 40
Property management relationship
Formula
Prorated rent = monthly rent ÷ days in month × days occupied= 50
Note
This is a simplified model: it applies the standard property-management definition to the numbers you entered. Rent affordability uses a flat share-of-income rule and ignores credit history, local screening criteria and household size. Proration assumes a plain daily rate; your lease or local law may prescribe a different convention (for example a fixed 30-day month). Security-deposit interest is simple interest at the rate you enter, while many jurisdictions set the rate, the compounding and the payout schedule by statute. Income, expense, reserve and escalation figures are straight-line and assume the amounts you enter hold steady; they ignore taxes, depreciation, financing changes, capital events, inflation and market turnover. Lease buyout compares the contractual penalty with the remaining rent only and is not a reading of your lease. These results are general information, not legal, tax or investment advice: check your lease and local tenancy law and consult a qualified professional before acting.
More in Property management
See all →Frequently asked questions
What does rent proration calculate?+
It calculates a fair partial-month rent amount for a tenant who moves in or out partway through a billing period, typically by dividing the monthly rent by the number of days in that month to get a daily rate, then multiplying by the number of days actually occupied.
Why divide by the actual days in the month instead of a flat 30 days?+
Using the actual days in that specific month (28-31) gives a more accurate daily rate than a flat assumption; a flat 30-day method is simpler but produces slightly different (and less precise) daily rates depending on which month proration falls in, since a February day rate differs from a July day rate under that method.
Does proration apply differently for move-ins versus move-outs?+
The math itself is the same formula either way (daily rate x days occupied), just applied to the days between move-in and month-end, or between month-start and move-out, so the direction doesn't change the calculation method, only which days are counted.
What if my lease specifies a different proration method?+
Some leases specify a fixed 30-day month for proration purposes regardless of the actual calendar month, or a different rounding convention — always check your specific lease language, since it can legally override the general daily-rate default this type of calculator assumes.
Should proration include the move-in or move-out day itself?+
Convention varies — some leases count the move-in day as day one of occupancy and the move-out day as the last paid day, while others exclude one of them; check your lease terms, since this can shift the prorated amount by one day's rent either way.