Prorated Rent Calculator
Calculate prorated rent for partial month move-in or move-out dates based on full monthly rent and actual days occupied.
How Prorated Rent Works
Prorated rent is the adjusted rental payment calculated when a tenant moves into or out of a rental property in the middle of a billing cycle (month). Instead of paying full monthly rent, the tenant pays only for the specific number of days they occupy the rental unit.
Prorated Rent Formula
To calculate prorated rent ($R_{prorated}$), divide total monthly rent ($M$) by total number of days in the month ($N$), then multiply by days occupied ($D$):
$$\text{Daily Rent Rate} = \frac{M}{N}$$
$$R_{prorated} = \text{Daily Rent Rate} \times D = \left(\frac{M}{N}\right) \times D$$
Common Use Cases for Rent Proration
Prorated rent calculations are standard practice during:
- Mid-month lease starts (e.g. moving in on the 10th or 15th of the month)
- Early lease terminations or mid-month move-outs
- Lease renewals that transition to partial-month billing terms
Compare your housing expenses with related tools such as the Net Effective Rent Calculator and 3x Rent Calculator.
Frequently Asked Questions
How many days are in a month for prorated rent?
Landlords typically use the actual number of days in the specific month (28, 29, 30, or 31) or a standard 30-day banker's month average.
Are tenants legally entitled to prorated rent?
In most jurisdictions, landlords prorate rent for partial move-in months if agreed in the lease contract. Always check your local tenant rights and lease agreement terms.
Does move-in day count as an occupied day?
Yes. Move-in day is counted as the first full day of occupancy when calculating the number of prorated days.