MTD - HMRC Compliant Module · How-to guide

Prepare a VAT Return from Accounting

Follow this guide to create a frozen VAT snapshot from the verified Accounting digital-link adapter for an open HMRC obligation. The guide then takes you through the correct route, the checks to complete before making changes, the workflow in order, and the evidence to review afterwards.

Audience: VAT-registered businesses, accountants and authorised tax agentsModule v1.0.0Code-backed
Jump to steps
Where to goTax Centre → VAT
Before you startRequired access: MTD VAT view/prepare/review/approve/submit permissions as applicable. Work on the correct tenant and taxpayer profile. Reconcile the underlying Accounting & Bookkeeping records before relying on prepared tax totals.

What you’ll accomplish

Create a frozen VAT snapshot from the verified Accounting digital-link adapter for an open HMRC obligation. The MTD module stores tax profiles, HMRC authority, obligations, frozen filing snapshots, approvals and audit evidence, while Accounting remains the primary financial record system.

Follow these steps

  1. Sync VAT obligations first and find the open period to file.
  2. Select Prepare from Accounting for that obligation.
  3. Britixo requests the verified Accounting adapter summary for the HMRC period start and end dates.
  4. The compliance engine checks required VAT values and transaction-level source_manifest lineage.
  5. Britixo builds the nine-value HMRC payload, calculates source/payload hashes and freezes a return snapshot.
  6. Go to the Review page and do not approve until the source records and figures have been checked.

Checks before you continue

Taxpayer profileAlways verify the correct profile, tax regime and masked identifiers before preparing or submitting.
Tenant contextTax records, HMRC authority and audit history must stay inside the current Britixo tenant/runtime.
Accounting sourceSource tax figures must come through the verified Accounting digital-link adapter with transaction lineage.
Approval stateThe exact frozen snapshot must carry the approvals required by its filing mode before HMRC submission.

Technical basis for this guidance

This guide was checked against libraries/Mtd_hmrc_vat_service.php; views/admin/vat.php; views/admin/review.php; models/Mtd_hmrc_model.php. The user instructions describe only behaviour exposed or enforced by the supplied module. Internal secrets, encrypted token values and database identifiers are intentionally not shown to ordinary users.

Compliance and operational boundaries

  • Britixo Accounting & Bookkeeping remains the authoritative ledger; the MTD module is a tax preparation/submission layer.
  • Government Gateway usernames and passwords must never be entered into or stored by Britixo.
  • A tax filing must not proceed when transaction-level digital lineage cannot be proven.
Accounting interlinkFor transaction creation, tax mappings, banking, reconciliation, journals, reports and source-document corrections, use the Accounting & Bookkeeping Help Centre. Correct the bookkeeping source first; do not type replacement totals into MTD merely to clear an error.