20.780 law on the Tax Reform introduced new oversight powers to the Internal Revenue Service (SII) that allow the tax authorities to optimize the audit process. The new powers allow SII to examine the accounting and tax information, accessing or connecting directly to computer systems.

In this context, the focus of the audits will be on the review of the data and how business systems are administered by taxpayers. Therefore, companies must work on the preparation of the accounting and tax documentation that supports the tax statement, in order to respond efficiently to the new SII requirements.