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Mandatory Electronic Invoice Layout Changes for 2026 Tax Reform: Key Requirements and Deadlines

  • The consumption tax reform starts in 2026, with full implementation by 2033, requiring changes to electronic fiscal document (DF-e) layouts.
  • New fields and validation rules for IBS, CBS, and IS taxes will be mandatory in DF-e from 01/01/2026.
  • Companies must update systems and processes to comply, or risk being unable to issue/receive invoices and facing operational disruptions.
  • The new tax rates (0.9% CBS, 0.1% IBS) in DF-e are for testing only in 2026 and have no financial impact.
  • Taxpayers under Simples Nacional will only be affected by these changes starting in 2027.

Source: vale.com

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.



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