Hello everyone

My business issues invoices ahead of service, sometimes up to 3 months ahead of time. So sometimes I am paying my HST a quarter ahead of schedule.

This is no problem, but when a customer backs out I may have an invoice where I already paid HST but am no longer going to be getting paid. I will be going into my 2nd quarter now, Q1 was easy as I could just void it but now that I will be paying my Q1 HST I want to make sure I am dealing with dead invoices properly.

How do I account for this in the current quarter (Q2) and get my HST credit from the Q1 invoice to apply against the current quarter? I read a bit about credit memos but I can't seem to figure it out fully.

Thank you