Quick Response

When you detect an accounting error, do not correct blindly. Identify the cause, affected periods, tax impact, and available evidence; then define complementary returns, payments, adjustments, and controls to prevent recurrence.

An accountant's error can extend over several periods; the taxpayer needs to measure the scope, correct the cause, and keep evidence.

Original Fintax publication: why today's accounting error can become a future cost.

Before Acting

Five years is not an automatic authorization to destroy files nor a guarantee that the calculation started when you imagine. Review the legal assumptions of the case.

What it means in practice

Delegating accounting does not automatically transfer the taxpayer's obligations. An error can repeat in returns, payments, CFDI, and financial statements; therefore, correction must identify the root cause and not just modify the last period.

Article 67 of the CFF establishes as a general rule a five-year term for certain authority powers, with assumptions that modify or extend its calculation. It also does not mean all documentation can be destroyed after five years: there are special rules and ongoing effects.

Decision Map

Type of ErrorExampleReview
OperationalUnidentified collectionBank and sale
AccountingWrong account or periodJournal entries and trial balance
TaxIncorrect base or rateLaw and return
DocumentaryMissing contract or CFDISupporting file

Review Checklist

  • Identify affected fiscal years, obligations, and returns.
  • Separate operational, accounting, tax, and documentation errors.
  • Quantify tax, accessories, and subsequent effects.
  • Review legal deadlines without assuming they are always five years.
  • Approve corrections and keep complete traceability.

Step by Step

  1. Freeze and back up available evidence.
  2. Map the error from its origin.
  3. Quantify periods, taxes, and accessories.
  4. Approve and execute corrections in order.
  5. Document root cause and add a preventive control.

Frequently Asked Questions

If it was the accountant's error, does SAT cancel the fine?

This should not be assumed. The relationship with the service provider and tax obligations are different levels. Review the act, the infraction, and applicable defense or correction channels.

Does everything prescribe in five years?

No. Article 67 contains a general rule and various assumptions for calculation, suspension, or extension. Analyze the specific case and other conservation obligations.

Do I correct only the last month?

First determine since when the pattern exists and which returns, payments, CFDI, or balances depend on it.

Consult official sources: articles 30 and 67 of the CFF, elements of accounting.

Continue with these Fintax guides: scope and controls of accounting service, review of returns.

What to do now

Save the diagnosis, consulted source, date, responsible party, and evidence of each decision. If there is a material difference, an expired obligation, or a formal SAT act, review the complete file before submitting a complementary return, paying, or responding.