When a tenant moves in or out mid-month, compute the partial rent owed based on the actual days occupied.
Input Data
Results
At a glance:Prorated rent is the monthly rent split by the actual days occupied, using either the real days-in-month basis or a banker's 30/360 basis.
Formula
method monthDays: proratedRent = monthlyRent × daysOccupied / daysInMonth
method banker: proratedRent = monthlyRent × daysOccupied / 30
How to Use
- Enter the monthly rent.
- Enter the days occupied and days in the month.
- Select the calculation method.
- Read the prorated rent.
FAQ
What is the difference between the days-in-month method and the banker's method?
The days-in-month method splits the rent by the actual days of that month (28-31), so the daily rent varies with the month; the banker's method uses monthly rent × 12 ÷ 365, giving a uniform daily rent all year regardless of month length. Both are common; the lease should state which applies.
How much rent do I pay if I move in mid-month?
Enter the monthly rent, the days occupied in the move-in month (from move-in day to month-end) and the days in that month to get the prorated rent. The same logic applies to the final month when you move out — charge by the actual days occupied.
Is there a statutory method for prorated rent in Hong Kong?
No. Hong Kong has no mandated proration formula; it follows the lease terms. Confirm the method and the days-in-month basis with the landlord before signing, and state it in the tenancy agreement to avoid later disputes.
How do I count the occupied days — does move-in day count?
A common convention is 'count one of the two ends' — for example count the move-in day but not the move-out day, to avoid double charging. It is not a hard rule; landlord and tenant may agree otherwise. The key is a shared understanding of 'from which day to which day, how many days' written into the lease, and entering consistent days here to check the amount.
Is only the rent prorated — what about management fees and rates?
Usually only the rent is split by days. Whether management fees, rates and government rent are also shared pro rata depends on the lease — some put these on the landlord, some pass them to the tenant monthly or pro rata. Confirm item by item at signing which costs are prorated by occupied days.
Content review: Calculatorism Finance Team. Results are for reference only; please refer to the relevant authorities for the official figures.