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⚠️December 16, 2025

5 common mistakes when managing your business accounting

Avoid these mistakes that can cost you fines and problems with tax authorities.

AccountingTips

5 common mistakes that can cost you fines and problems with SAT.

Mistake 1: Not keeping expense invoices

If you don't have the invoice, you can't deduct the expense. Save everything digitally.

Mistake 2: Mixing personal and business finances

Open a separate bank account. It makes accounting easier and avoids tax problems.

Mistake 3: Not reconciling banks monthly

Small differences become big ones. Reconcile every month.

Mistake 4: Ignoring withholdings

If VAT or ISR is withheld, record it correctly to claim the credit.

Mistake 5: Leaving everything for fiscal closing

Errors accumulate. Keep accounting up to date.

How to avoid them

  • Use an accounting system (not Excel)
  • Digitize all documents
  • Review numbers monthly
  • Consult with an accountant
  • CAF helps you avoid these mistakes with automation.

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