Can i set up ecs vat codes to post into box 8 on vat 100

Good day, pjmomentum.

QuickBooks Online will automatically give you the list of common codes when setting up VAT. You can follow the steps on this guide on how to add a new VAT code. 

Also, you can get the list of VAT Codes in these articles.

• Common VAT Codes

• UK Flat Rate Scheme: How does it work?

Reply below if you need anything else.