Late Rent Fee Calculator
Calculate late rent fees based on your tenant’s rent amount and your fee policy.
Open Calculator →Pro Rata Rent Increase Calculator
Easily calculate how much rent a tenant owes when a rent increase takes effect partway through a month. Ensure fair and accurate billing.
Calculate Accurate Mid-Month Rent Increases
The Pro Rata Rent Increase Calculator helps landlords and property managers determine the correct rent when a rent increase starts partway through the month. It ensures tenants are billed fairly by accounting for how many days fall under the old and new rent amounts.
Formula
Pro Rata Rent = [(Old Rent × Days Before Increase) + (New Rent × Days After Increase)] ÷ Total Days in Month
Example
Suppose your current rent is $1,200/month, and it increases by 5% starting on the 20th day of a 30-day month.
The new rent is $1,260. The first 19 days are billed at the old rate, and the remaining 11 days at the new rate:
[(1,200 × 19) + (1,260 × 11)] ÷ 30 = $1,222.00
The tenant should pay $1,222 for that month.
This tool simplifies rent calculations, prevents disputes, and ensures fair, transparent billing for both tenants and landlords.
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Open Calculator →Prorata Rent Calculator
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