How do I start becoming VAT compliant with these e-invoicing regulations?

All you have to do is issue an e-invoice to your buyer whenever you make a B2B, B2C, or B2G sale by using a ZATCA compliant e-invoicing system, starting from Phase 1.

Make sure that you follow the technical requirements mentioned above. While issuing your invoices, make sure to include the required fields that should be in a VAT invoice (like the seller’s name and VAT registration number, the time stamp of the invoice, the VAT total, and the overall value of the invoice including VAT).

In Phase 1, you can issue a copy of the invoice to the buyer immediately, but from Phase 2, you will need to push the invoice to ZATCA’s portal to validate it before you send it to the buyer. Once this is done, store the e-invoice in your system so you can retrieve it at a later time for future reference.