General accounting software is built for you to raise your own sales invoices and record purchases — not for raising invoices on your suppliers’ behalf at volume. Dedicated self-billing software is purpose-built for the customer-led model: agreements, per-supplier VAT status, the CIS reverse charge, bulk runs and supplier copies.
Key points
- Accounting tools are sales-invoice-led; self-billing is purpose-built for supplier invoicing.
- Self-billing software tracks agreements and per-supplier VAT status.
- Built-in reverse charge, CIS deductions and bulk CSV runs.
- Sends compliant self-billed copies to suppliers automatically.
Different jobs
Accounting software helps you invoice your customers and keep your books. Self-billing flips the direction — you invoice on behalf of your suppliers — which general tools rarely handle cleanly, especially the agreement tracking and self-billing markings.
Using both together
Many businesses use self-billing software to raise and send the self-billed invoices, then carry the VAT-return-ready figures into their accounting or MTD software. The two complement each other.
This is general information, not tax advice — confirm your own position with your accountant or HMRC.