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UK e-invoicing from 2029: what has actually been decided
The UK mandate for all VAT invoices from 2029 was announced at Budget 2025, with a decentralised model and Peppol confirmed as the core interoperability network in June 2026. The month is not confirmed, no legislation exists yet, and UK B2G rules oblige authorities to receive — not suppliers to send.
In practice
The control has to run before the invoice becomes irreversible.
An accepted structured invoice can be corrected but never deleted, and from the penalty date every defect has a price. Barzel puts the approval threshold, the duplicate check and the signed record in front of submission, so the process can be defended on the day an auditor or the tax authority asks.
UK e-invoicing mandate announced for 2029
BarzelVault
The AI action firewall: decide what an agent may do before it does it.
- Approval thresholds and policy checks enforced before execution; human approvals that expire and escalate.
- Cryptographically signed audit receipts: trigger, inputs, policy version, approver, outcome.
- Credential isolation, spend and action limits, and an emergency kill switch.
Free tier: 10,000 calls a monthPaid plans from $199 a monthLive on MCPize
BarzelOps
Governed workflow automation across the systems that run the business.
- Durable, idempotent execution: a timeout is retried once, never filed twice.
- Human approval checkpoints that pause the workflow and resume it.
- Isolation per entity or client, signed evidence receipts and a portable manifest; HubSpot, Xero, Gmail, Google Drive and Slack.
Free tier: 100 calls a dayPaid plans from $19 a monthLive on MCPize
Enterprise: written quote by email within two business days. No sales call.