From 01 Jan 2023: Automatic update of e-Invoice Number and Serial in Vietnam according to current regulations


From 01 Jan 2023: e-Invoice Number and Serial will be automatically updated according to the provisions of Clause 3, Article 10 of Decree 123 and Point b, Clause 1, Article 4 of Circular 78, specifically as follows:

  • Invoice numbers start from 00000001
  • The two digits indicating the calendar year in Invoice serial will be updated from 22 to 23
    For example: The Company is using the e-invoice serial C22TYY, in 2023 it will change to C23TYY, the invoice number starts again from 00000001.

This annual update does not affect any current usage of electronic invoices.