apply customer payment from closed period

Hi MMurtos,

Making sure payments are applied correctly is the key to good bookkeeping and in QuickBooks Desktop we make it easy to assign those payments to an invoice. I can help go over how to do this.

If you have a payment that was put through as a deposit the best way to use it to pay a different invoice would be to make that payment into a credit memo in your QuickBooks Desktop company file. Once that credit is made you can apply it to an invoice for the same customer.  You can follow the steps on how to create and apply a credit memo in this article. Once the credit is assigned to an invoice it'll say if there is a balance owing or if they have more credit left to apply on future invoices. 

Hope you have a great day!