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What is Full tax certification (YMM)?

A sworn financial adviser examining the taxpayer's books, records and documents and certifying that the annual tax return complies with legislation.

Full certification is carried out under Law No. 3568 and the related regulation, and concludes with a certification report. A certification report may be required to benefit from certain tax advantages or for certain transactions.

Full certification is a tax compliance review; it is different from an independent audit, which expresses an opinion on the financial statements.

Source: Law No. 3568

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Last updated: October 22, 2026 · This definition is for general information only.

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