Not even sure of the correct terminology to use, but here’s the issue:
We were paid in advance by a client in December 2017 for work to be carried out during 2018. The payment was against a single invoice dated December 2017, and upon which we have already paid to HMRC the VAT element. We have since de-registered for VAT which may or may not have a bearing.
Now the pre-paid work has begun, what is the best way to show the client what we have done each month, what we are charging them, and how much of the pre-paid balance remains? Clearly we cannot invoice them a second time. And how, if indeed it is necessary at all, should we best deal with the VAT?
With thanks in anticipation.