How do I Allocate a Payment On Account to an Invoice Raised at a Later Date?

To allocate a payment on account to one or more invoices use the Record a Receipt task and select the Hirer from the list.

Then, leaving the Amount received as zero, complete the Allocated column as follows:

In the Allocated column against the payment on account, enter the value of the payment on account as a negative value (e.g. if there is £50 on account, enter -50.00)
In the Allocated column against the invoice(s), enter the amount of the payment on account to be allocated to the invoices as a positive value (e.g. 50.00, or as separate payments of 30.00 and 20.00).
Check that the total of all the values entered in the Allocated column in zero.
Select Save to save changes.
Check that the Lettings Accounts page displays the invoices as Paid. Note that you may have your Accounts page set to display only Outstanding balances - if this is the case then paid invoices will not display. Alternatively you can redefine the filter to display All items.

SCO Help Centre