Why didn't I receive full rent this month if my tenant moved in last month?

To ensure incoming tenants have the ability to pay, we always charge full rent on the first month, and prorate the next month’s rent.

When a tenant moves in, we prorate rent for the 2nd month based on the move-in date. For example, if a tenant moves in on September 16 and their rent is $1,000, they would pay $1,000 upon move in and then would owe half the normal rent amount ($500) on Oct 1st.