VAT-MOSS returns are due by 20 April. For sales made from the UK the amount of the sale and the amount of the VAT due must be reported in pounds sterling. If the sale has been made in another currency which date should be used for exchange rate to translate into £s. Is that :
the sale the date was made;
the date payment was received by the supplier;
the end of the VAT period in which the sale was made; or
the end of the week in which the sale was made.
VAT notice 741A recommends the last day of the reporting period to which the declaration relates, but does this guidance alos apply to VAT-MOSS?
If you charge or invoice consumers in other member states in a
currency other than pound sterling, and you record that price in your
business accounts in that currency, you must convert the amount into
sterling at the end of each calendar quarter. You must use the rate
published by the European Central Bank on the last working day of that
quarter, see HMRC VAT MOSS conversion rates. [this link does not take one to exchange rates but to the VAT notices]
However, if you automatically convert the foreign currency into
sterling using an agreed daily or other periodic rate and you record
these sterling amounts in your business accounts, you can use these
figures to complete your quarterly VAT MOSS Return.