3656367 - Brazil Withholding Taxes - Unexpected accumulated base value calculation for IRRF with simplified discount

• The system incorrectly calculates the accumulated base value for the tax period.
• Simplified discount is being used, thus the IRRF has a discount of 25% of the lowest range of its formula.

Scenario example:

• First invoice has a base of 10.000,00.
• Its IRRF with simplified discount was correctly calculated as 1.674,29 on September 2025 (check calculation here).
• Base amount used was 9.392,80 (10.000,00 - 607,20).
• Second invoice has a base of 10.000,00.
• It's expected that the accumulated base value used for calculation will be 19.392,80 (10.000,00 + 9.392,80, first invoice calculated base + second invoice base).
• System calculates accumulated base value for simplified discount as 20.000,00.

SAP S/4HANA
SAP ERP
Brazil Withholding Taxes

IRRF, withholding tax, brazil, accumulated base value, incorrect calculation, sap s/4hana, simplified discount, WHT key DISC, tax period, fiscal year 2025, FB03 , KBA , FI-LOC-FI-BR-WHT , Withholding Taxes , Problem