Join our Newsletter — 33% off our NHI Course

Making Tax Digital

The UK digital reporting regime that requires VAT-registered businesses to keep electronic records and submit returns through compatible software. In practice, it turns VAT compliance into a controlled data flow, where manual copying and disconnected spreadsheets increase the risk of filing errors.

What Making Tax Digital Changes in Practice

Making Tax Digital turns VAT compliance into a controlled digital workflow rather than a document-handling exercise. The main operational shift is that records, calculations, and submissions should stay electronically connected so the tax return reflects the underlying source data more reliably.

For organisations, that means the term is less about tax policy in the abstract and more about the integrity of the reporting pipeline. The quality of the submission depends on whether the business can preserve data fidelity from the accounting system to the filing software without manual rekeying, ad hoc exports, or spreadsheet drift.

Why Data Integrity Matters for Digital VAT Reporting

The security and governance issue is not only whether a return is sent, but whether the numbers can be trusted end to end. When users copy values between systems or maintain parallel spreadsheets, they create opportunities for transcription errors, version conflicts, and silent inconsistencies that can survive into the filed return.

That makes record accuracy, change control, and reconciliation part of the compliance control surface. If the underlying data flow is unstable, the organisation can be technically “digital” while still exposing itself to incorrect filings, incomplete audit trails, and avoidable remediation work.

Common Failure Modes in the Reporting Pipeline

Making Tax Digital tends to fail at the seams between systems rather than inside a single platform. The most common problems are mismatched records, unsupported integrations, late adjustments that are not propagated across all copies of the data, and overreliance on spreadsheets that are not governed like a system of record.

These weaknesses matter because VAT reporting is time-bound and rule-bound. Once a control failure occurs, the business may not notice until a return is reviewed, challenged, or compared against source records, by which point the error can be more expensive to unwind.

Using a governed reporting stack reduces the likelihood that manual handling will break the chain of evidence. Where a business depends on multiple tools, consistency checks and audit-ready reconciliation become the practical safeguard, not just a bookkeeping preference.

How Organisations Should Think About Compliance Readiness

Readiness is best judged by whether the business can identify every system that contributes to VAT records, confirm that it is using compatible software, and understand where human intervention is still happening. The question is not simply “can we file?” but “can we demonstrate that the filing reflects controlled source data?”

That perspective helps separate a one-time software purchase from an ongoing compliance capability. Making Tax Digital is strongest when record keeping, review, and submission are designed as one controlled process, rather than stitched together from manual exports and local spreadsheet practices.

Risk and Threat Considerations

Making Tax Digital creates exposure when electronic records are fragmented, loosely governed, or copied between tools without strong reconciliation. The main risk is not just noncompliance, but the possibility that a filing error or data inconsistency persists long enough to affect tax decisions, audits, or remediation effort.

Failure mechanism: Manual copying, spreadsheet duplication, unsupported integrations, and late updates can break data integrity between the original accounting record and the submitted return.

Impact: The organisation can file incorrect VAT information, lose confidence in its audit trail, and spend time reconstructing which version of the data is authoritative.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

NIST SP 800-53 Rev 5 sets the technical controls, while ISO/IEC 27001:2022 defines the regulatory obligations.

Framework Control / Reference Relevance
NIST SP 800-53 Rev 5 AU-6 — Audit Record Review, Analysis, and Reporting MTD depends on traceable reporting and review of record changes.
CM-8 — System Component Inventory MTD readiness depends on knowing every system that feeds VAT records.
Recommendation — Review VAT reporting logs and reconciliation exceptions before submission. Inventory all systems that create, transform, or submit VAT data.
ISO/IEC 27001:2022 A.8.15 — Logging Digital tax workflows need evidence of data handling and submission activity.
A.5.33 — Protection of Records MTD requires records to remain reliable and retrievable across the reporting lifecycle.
Recommendation — Log changes and filing actions across the VAT reporting workflow. Protect VAT source records and retain them in a controlled, retrievable form.

Practitioner Guidance

Why practitioners should care: The practical control question is whether the VAT return is produced from a traceable source of truth or from a chain of manual transformations. If the process relies on repeated human handling, the compliance risk increases even when the software is technically capable of filing.

Common misunderstanding: Digital submission alone does not equal controlled reporting. A business can satisfy the channel requirement while still leaving the underlying records exposed to avoidable error, inconsistency, and weak review discipline.

Practitioner takeaway: Treat Making Tax Digital as a data governance problem as much as a tax filing requirement, and keep the reporting path as short, traceable, and reconciled as possible.