Get PEPPOL-Ready for the UK's 2029 E-Invoicing Mandate
No mandate is in force yet — but the UK has announced mandatory B2B and B2G e-invoicing, expected from April 2029. Send NHS and public-sector e-invoices today via PEPPOL, with VAT checks built in. Free to start, no credit card.
Why UK Businesses Choose Cauri
2029 Mandate Ready
Get ahead of the UK's announced e-invoicing mandate (expected from April 2029, B2B and B2G). PEPPOL BIS Billing 3.0 and EN 16931 ready.
NHS & B2G Today
Send structured PEPPOL e-invoices to NHS England and other public bodies that already accept them — no need to wait for the mandate.
UK VAT Checks
GB VAT number format checks (GB + 9 digits) with VIES pre-checks. Users remain responsible for confirming HMRC records.
UK E-Invoicing: Where Things Stand
As of 2026, the UK has no general e-invoicing mandate — adoption is voluntary today. The government has announced mandatory B2B and B2G e-invoicing expected from April 2029, using a decentralised PEPPOL model with no central clearance. Cauri helps you prepare now:
- PEPPOL Access Point connectivity for the UK (4-corner model)
- PEPPOL BIS Billing 3.0 / EN 16931 invoice format
- NHS England and public-sector (B2G) e-invoicing supported today
- GB VAT format + VIES pre-checks (users confirm HMRC records)
Simple Pricing
Transparent pricing in GBP. Archive-Vault on Business/Enterprise; Free/Pro users handle retention.
Unlimited features are subject to fair-use and technical rate limits. Archive-Vault retention applies to Business/Enterprise; Free/Pro users remain responsible for statutory archival and have a 30-day export window (90 days on Business/Enterprise).
Free
Free forever for basic invoicing
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Starter
Perfect for freelancers
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Professional
For growing businesses
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Enterprise
For large organizations
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Accounting Free
Basic accounting panel
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Accounting Starter
For small accounting firms
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Accounting Professional
For growing firms
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Accounting Enterprise
For large firms
- Unlimited Invoices
- Unlimited Quotes
- PEPPOL Network Access
- Email Support
- Role & Permissions
- Multi-Currency
- Receive E-Invoices
- Recurring Invoices
- Priority Support
- Archive Vault
- Full Accountant Panel
- Bulk Report Generation
- Client Health Dashboard
Frequently Asked Questions
Is e-invoicing mandatory in the UK right now?
Not yet. As of 2026, UK e-invoicing is voluntary for B2B. The government has announced a mandate for B2B and B2G VAT invoices, expected from April 2029, with a detailed roadmap to follow. Cauri keeps you PEPPOL-ready so the transition is painless.
Can I send e-invoices to the NHS and public bodies today?
Yes. NHS England requires structured PEPPOL BIS 3.0 e-invoices, and other UK public bodies can receive EN 16931 e-invoices. Cauri sends these via a certified PEPPOL Access Point today.
What format and network will the UK use?
The UK is expected to use the decentralised 4-corner PEPPOL model with the PEPPOL BIS Billing 3.0 (EN 16931) format. There is no central government clearance platform; businesses exchange via Access Points, and HMRC receives data for reporting.
How does UK VAT validation work?
We run GB VAT number format checks (GB followed by nine digits) and VIES pre-checks to flag issues before you send. Please confirm official HMRC records for accuracy.
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Get PEPPOL-Ready Before the 2029 Mandate
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