Hi there, @simonb1.
When recording a reverse charge, there is two Vat code that you can choose. These are:
- 20% RC SG - Reverse charge VAT code for services
- 20% RC MPCCs - Reverse charge for purchase of computer chips and mobile phones
To know more about this, see this article: Common VAT codes.
You can also check out this article for more information : VAT: Domestic Reverse Charge for Building and Construction Services.
Let me know if you have any follow-ups or other questions. I'd be happy to help. Have a great day ahead.