Proration
Page last updated: August 22, 2026 · How we source & update
Charging rent for only the portion of a billing period you actually occupy the unit, rather than the full amount. In practice it comes up when you move in or out partway through. It does not mean a landlord must prorate automatically — ask for it in writing before you sign, or before you hand back the keys.
Why does this matter to renters?
It matters when you move in or out mid-month so you don't overpay.
What does this look like in practice?
Moving in on the 20th usually means a prorated first month's rent.
What can I do if this comes up?
Ask the landlord in writing how the first or last month is being calculated and get the figure in writing before you pay. Check that the move-in or move-out date used matches your lease and your keys. If you are charged a full month for a partial one, point to the lease language and ask for the difference.