What is the correct approach in the following scenario?
I charge my clients on a daily rate basis with an SLA for X amount of days per annum. Depending on the nature of the SLA I bill quarterly or less frequently on an ad-hoc basis when certain projects are completed. I have a few projects that completed on 30/09/2020 and I'm preparing my invoices. Do I charge the 21% VAT rate to the full amount or should I charge 23% on the billable days pre-dating 01/09/2020? The invoices cover either the quarterly or six-month period ending 30/09/2020.
I charge my clients on a daily rate basis with an SLA for X amount of days per annum. Depending on the nature of the SLA I bill quarterly or less frequently on an ad-hoc basis when certain projects are completed. I have a few projects that completed on 30/09/2020 and I'm preparing my invoices. Do I charge the 21% VAT rate to the full amount or should I charge 23% on the billable days pre-dating 01/09/2020? The invoices cover either the quarterly or six-month period ending 30/09/2020.