Concept Definition
What is a digital tax audit?
A digital tax audit is a tax authority examination of business financial records conducted using structured digital data submissions — such as SAF-T (Standard Audit File for Tax) or direct API queries — rather than physical document inspection. Digital audits are faster and more comprehensive. Businesses with structured e-invoicing are typically audit-ready in hours versus weeks for paper-based operations.
What data formats are used in digital tax audits?
Tax authorities use several standardized formats for digital audit requests:
- SAF-T (Standard Audit File for Tax): OECD-developed XML format covering GL, AP/AR, and inventory data
- JPK (Poland): Polish version of SAF-T, required monthly for VAT records
- FEC (France): Fichier des écritures comptables — French accounting file required for tax audits
- iXBRL: Used in the UK for digital CT600 corporation tax returns
- Direct API queries: Some tax authorities now query ERP systems directly for specific transaction records
Frequently Asked Questions
- How does e-invoicing prepare businesses for digital tax audits?
- E-invoicing creates audit-ready digital records by default. Structured invoices with immutable audit trails, archived in compliance with retention requirements, satisfy digital audit requests without manual document assembly. Businesses with structured e-invoicing are typically audit-ready in hours versus weeks for paper-based businesses.
- What is audit-ready VAT documentation?
- Audit-ready VAT documentation includes: original structured invoice files (UBL, Factur-X, or PINT-AE), VAT determination evidence (tax engine log showing rate applied and reason), goods receipt confirmation for three-way match, payment records with remittance, and archival proof of integrity via cryptographic hash or trusted timestamp.