A tax audit should not be a surprise. Organized businesses go through the process with far less stress and without disrupting operations.
Basic documentation
Prepare invoices, contracts, payment proofs, filed declarations and correspondence with authorities. Each year should be clearly archived.
Pre-audit review
An internal review or review with your accountant identifies mismatches before the inspector sees them. Voluntary correction is often more favorable.
During the audit
Keep communication professional, provide only requested documents and take meeting notes. Having your accountant present is usually helpful.
After the audit
Implement recommendations, update procedures and set alerts for upcoming deadlines.