E-invoicing that writes itself during the call.
Peppol BIS 3.0 for UK NHS and EU public sector. Making Tax Digital for VAT in the UK. ViDA-ready for the EU 2028 mandate. voiceOne creates compliant invoices straight from the conversation and hands them off to your bookkeeping system. No second tool, no per-invoice fee.
What you need to know in 2026
E-invoicing is moving from "nice to have" to mandatory across the EU and the UK. Whoever moves first wins on cash flow and is ready when the regulation hits.
UK: Peppol for NHS & gov
Since 2014 NHS England mandates Peppol e-invoices via the NHS Shared Business Services. UK gov bodies follow. Without Peppol = no public sector business.
EU: ViDA from 2028
ViDA (VAT in the Digital Age) makes e-invoicing mandatory for all intra-EU B2B by 2028. EN 16931 standard via Peppol. Member states starting earlier (Germany 01/2025, Belgium 2026, Spain 2026).
MTD for VAT — already live
Making Tax Digital for VAT is mandatory in the UK for all VAT-registered businesses since 2022. voiceOne bridges to HMRC quarterly returns.
Cash flow advantage
Buyers pay e-invoices 6-12 days faster than PDF (UK FSB study 2024). The cash flow improvement alone often pays back the tooling within 2 quarters.
What voiceOne does
Complete e-invoicing pipeline — receive, create, send, archive.
Peppol BIS Billing 3.0
Standards-compliant invoice generation. Mandatory fields validated automatically (UK VAT, EU VAT, buyer reference). Validation against the official Peppol schemas.
- Peppol BIS Billing 3.0
- EN 16931-compatible
- Validation before sending
Invoice during the call
Customer calls, wants an invoice — the AI captures line items, quantity, price during the conversation. After hang-up the draft invoice is ready for approval.
- Speech-to-invoice conversion
- Product master suggestion
- UK VAT logic automatic
Incoming e-invoices automatically
Peppol attachments are auto-recognised, parsed into the internal format, validated and queued for approval. Duplicate detection, OCR fallback for legacy PDF.
- Email IMAP integration
- Peppol receipt via Access Point
- HMRC-compliant 7-year archive
MTD for VAT included
Direct bridging to HMRC for quarterly VAT returns. Box-1 to Box-9 mapped automatically from your invoice data. No second software needed.
- MTD-compliant API
- Quarterly VAT submissions
- Audit trail for HMRC
NHS / gov / Peppol Access Point
Invoices to NHS Shared Business Services, Crown Commercial, local councils via Peppol. Buyer-reference validation, Access Point access included.
- NHS SBS integration
- Peppol Access Point
- Buyer-reference database
7-year audit-compliant archive
Tamper-proof storage with hash chain and audit log. Process documentation template. Fully auditable for HMRC inspections.
- Hash-chained per record
- Audit log with timestamps
- Accountant read-only access
voiceOne vs. Xero vs. QuickBooks
Honest comparison. We do not play e-invoicing alone — we play it as part of a phone workflow.
| Feature | voiceOne | Xero | QuickBooks |
|---|---|---|---|
| Starting price | £29/month (full stack) | £15 → £33 | £14 → £42 |
| Peppol BIS 3.0 create | Yes | Via add-on | Via add-on |
| Peppol receive + parse | Included | Email-only | Email-only |
| MTD for VAT | Built-in | Built-in | Built-in |
| Invoice from phone call | Yes (USP) | No | No |
| Accountant export | Multi-format | Sage / FreeAgent | Sage / FreeAgent |
| NHS / gov Peppol | Included | Add-on | Add-on |
| Audit-compliant archive | Included | Included | Included |
| Telephony integration | Full stack | No | No |
| Deep bookkeeping | Solid for SMB | Mature | Mature |
As of 05/2026 — all prices per the vendors' public pricing pages. We refresh quarterly.
How customers run it
Three real e-invoicing workflows from our customer base.
Plumbing firm in Birmingham
Customer calls, asks for an invoice for the last repair. AI pulls the job from CRM, asks for hours and parts, generates Peppol invoice and emails it instantly. Before: receptionist typed in the evening, customer got the invoice 3 days later.
LSO-compliant billing in London
Client calls about fees. AI checks Solicitors Regulation Authority rules in the matter, generates SRA-compliant invoice with buyer reference (for public sector clients). Sage export nightly.
Time-tracking in Manchester
Consultants log hours via voiceOne voicemail ("today 4h project Smith Ltd, advisory"). Month-end: AI generates invoice per client, validates hourly rates, sends automatically after approval.
Fully included in the voiceOne plan
Book an e-invoicing consultation
30 minutes with our bookkeeping consultant. We review your current pipeline and show the migration path.
Frequently asked questions
PDF is unstructured — your customer's system has to OCR or rekey it. Peppol BIS Billing 3.0 is structured XML carried over the Peppol network — your customer's ERP receives it and posts it automatically. Result: faster payment, fewer errors, audit-ready.
For public sector (NHS, central government) — yes, via Peppol. For private B2B — not yet mandatory, but ViDA brings EU-wide mandate by 2028 and cross-border supply will follow. Moving now puts you ahead of the curve.
Nothing. Unlimited e-invoices are fully included in the voiceOne plan from £29/month. No per-invoice fee (Xero: £0.10+ per Peppol invoice on add-on), no Peppol surcharge, no accountant add-on.
Yes — that's our unique selling point. Customer calls, wants an invoice. The AI pulls job/appointment/time data, asks for missing details in the conversation (quantity, parts, address), generates the Peppol invoice draft and queues it for approval. You confirm with one click.
Multi-format export: Sage, FreeAgent, QuickBooks. Your accountant pulls the invoices daily. UK VAT coding is auto-suggested. No rekeying at the accountant's end.
Peppol BIS Billing 3.0 with buyer reference, sent via Peppol Access Point. NHS SBS integration included. Status updates (received / accepted / paid) processed automatically.
Yes. Tamper-proof storage with hash chaining, full audit log and process documentation. 7-year retention per HMRC requirements. Accountant access as read-only role.
Xero and QuickBooks are mature bookkeeping tools — if you need deep accounting (balance sheets, fixed assets, 5-step dunning), stay there. voiceOne solves e-invoicing for SMBs who want telephony + CRM + invoicing in one workflow. Hybrid setup also works: voiceOne for daily ops, Xero/Sage for accounting.
Be Peppol-ready in 14 days.
No credit card needed, no setup fee. Full functionality including AI phone assistant.