Free tool
Part-month rent calculator.
A tenant moves in or out mid-month. Work out that month’s rent from the real number of days in it.
1 to 30
Rent for November 2026
S$1,813.33
16 of 30 days × S$113.33 a day.
An estimate. Your tenancy agreement decides: some count a 365-day year instead of the days in that month. This page uses the real days in the month, so February is 28 or 29.
How it works.
How is part-month rent worked out?
Monthly rent divided by the days in that month, times the days the tenant lives there. S$3,400 in a 30-day month is S$113.33 a day; moving in on the 16th is 15 days, so S$1,700.
Is the moving day counted?
Yes, both ways. Moving in on the 16th counts the 16th. Moving out on the 12th counts the 12th, the day the keys go back.
Why not divide by 30?
Months are 28 to 31 days. Dividing by 30 charges a little too much in short months and too little in long ones, and February is where a tenant notices.
Does MarqueTrack do this for me?
Yes. When an invoice covers part of a month, MarqueTrack shows the part-month amount worked out this way — “Part month: 15 of 30 days” — and you choose whether to use it. The invoice shows your tenant the dates it covers.