Brazil’s Technical Note 2026.002 updates NFGas for the Consumption Tax Reform, adding rules for IBS/CBS, cashback, SUFRAMA incentives, advance payments, and ICMS fields. For Normal Regime issuers, the IBS/CBS group becomes mandatory on August 3, 2026. Other validations enter production on August 31, 2026. NFGas issuers and software providers must update XML layouts, tax fields, validations, and rejection handling.
Brazil Technical Note 2026.002: NFGas Layouts Updated for New IBS, CBS, and ICMS Fields
Public
Brazil
Author: Ljubica Blagojević
Category:
Technical description
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61
Content accuracy validation date:
14.07.2026
Content accuracy validation time:
08:08h
The first implementation phase makes the IBS/CBS tax group mandatory for issuers under CRT=3 — Normal Regime. If the imp/IBSCBS group is not included, the document may be rejected with Rejection 310 — IBS/CBS not informed. This phase starts in testing on July 1, 2026, and in production on August 3, 2026.
The second phase covers additional changes, including SUFRAMA fields, cashback validations, zero-rate CBS rules, advance payment flows, and updates to the ICMS10, ICMS51, and ICMS70 groups. This phase starts in testing on August 3, 2026, and in production on August 31, 2026.
The Technical Note introduces pDevTrib fields for tax refund or cashback percentages for state IBS, municipal IBS, and CBS, with validation rules to check whether the refund percentage and calculated refund values are correctly reported.
For incentivized areas, the update adds the issuer’s SUFRAMA registration field — ISUFemit. This applies to operations benefiting from tax incentives in areas under SUFRAMA control, especially those using a zero CBS rate. The system will validate whether the issuer’s municipality is in an incentivized area and whether the SUFRAMA registration check digit is valid.
The update also creates rules for zero-rate CBS operations in the Manaus Free Trade Zone and Free Trade Areas. To apply the zero rate, the product classification, municipality, and issuer must meet the required conditions; otherwise, the document may be rejected.
For advance payments, the Technical Note introduces the tpPagAnt field and the gPagAntecipado item group. These fields identify advance payments for continuous or non-continuous services and require reference to the original electronic tax document used for the advance payment. SEFAZ will validate whether the referenced document exists, is authorized, has the correct classification, and belongs to the same CNPJ base.
The Technical Note also updates traditional ICMS structures. ICMS10 gains adjusted fields for ICMS and ICMS-ST base calculation, ICMS51 gains fields for deferred ICMS and tax benefit codes, and ICMS70 updates accepted values for the ICMS-ST base calculation method.
Overall, NFGas issuers, ERP providers, tax software developers, and system integrators must update XML layouts, IBS/CBS groups, cashback fields, SUFRAMA handling, zero-rate CBS logic, advance payment references, ICMS structures, validations, rejection handling, and testing scenarios before the applicable deadlines.
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