---
title: "SEFAZ e-invoicing (NF-e, CT-e, MDF-e) API changes, deprecations and deadlines | Harbyn"
description: "SEFAZ e-invoicing (NF-e, CT-e, MDF-e): 8 upcoming deadlines and 11 recorded changes as of 2026-10-25, each with its source."
canonical: "https://harbyn.com/vendors/sefaz"
last-updated: 2026-10-12
---

# SEFAZ e-invoicing (NF-e, CT-e, MDF-e): API changes and deadlines

Markdown version of <https://harbyn.com/vendors/sefaz>.

Fiscal. 8 upcoming deadlines, 11 recorded changes. Every entry cites the SEFAZ e-invoicing (NF-e, CT-e, MDF-e) page we read it from.

## What we read

The SEFAZ e-invoicing (NF-e, CT-e, MDF-e) pages and feeds our ingestion visits, politely and on a schedule.

- **Changelog**: <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=hXzemuyNHW4=>
- **Changelog**: <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=>
- **Changelog**: <https://www.cte.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=Y0nErnoZpsg=>
- **Changelog**: <https://dfe-portal.svrs.rs.gov.br/Mdfe/Documentos>
- **Changelog**: <https://api.github.com/advisories?affects=nfephp-org/sped-nfe,nfephp-org/sped-cte&per_page=20&sort=published&direction=desc>

## What the scanner looks for

How `harbyn scan` recognises SEFAZ e-invoicing (NF-e, CT-e, MDF-e) in a repository, on your machine. Nothing leaves it.

- **Packages**: `packagist nfephp-org/sped-nfe`, `packagist nfephp-org/sped-cte`

## Upcoming deadlines

| Deadline | Change | Use instead | Details | Source |
| --- | --- | --- | --- | --- |
| Nov 3, 2026 | NF-e/NFC-e net product value fields and prepaid ICMS group on November 3, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-layout-and-validation-rules-update.md> | <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=> |
| Nov 3, 2026 | NF-e/NFC-e checked against the RFB contributor list from November 3, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-nf-e-nfc-e-contributor-registry-validation-updates.md> | <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=> |
| Nov 3, 2026 | goods-return NF-e must reference the original per item from November 3, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-nf-e-nfc-e-tax-reform-layout-and-validation-updates.md> | <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=> |
| Nov 16, 2026 | BP-e net value field and total value rule change on November 16, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-bp-e-layout-and-validation-updates.md> | <https://www.cte.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=Y0nErnoZpsg=> |
| Nov 16, 2026 | CT-e drops EPEC and FSDA contingency on November 16, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-ct-e-ct-eos-and-gtv-e-layout-updates.md> | <https://www.cte.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=Y0nErnoZpsg=> |
| Dec 1, 2026 | the NF-e DANFE must show IBS, CBS and IS from December 1, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-nf-e-danfe-layout-shows-ibs-cbs-and-is-from-december-1.md> | <https://www.nfe.fazenda.gov.br/portal/exibirArquivo.aspx?conteudo=ugn4MYF5PLg=> |
| Dec 14, 2026 | NF-e referencing an NFC-e or CF-e rejected from December 14, 2026 | - | <https://harbyn.com/changes/sefaz/2026-10-01-danfe-simplificado-tipo-2-for-in-person-and-remote-sales.md> | <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=> |
| Sep 1, 2027 | GTIN registry check extended to construction materials from September 1, 2027 | - | <https://harbyn.com/changes/sefaz/2026-09-25-gtin-validation-rule-changes.md> | <https://www.nfe.fazenda.gov.br/portal/listaConteudo.aspx?tipoConteudo=04BIflQt1aY=> |

## Change history

Newest first, by the date SEFAZ e-invoicing (NF-e, CT-e, MDF-e) announced it. This is the archive: past changes are not warnings, and changes we recorded after they took effect are marked as such.

### October 2026

- Oct 1, 2026, Behavior change: [IBS/CBS tax classification table updated](https://harbyn.com/changes/sefaz/2026-10-01-ibs-cbs-tax-classification-table-updated.md)

### September 2026

- Sep 25, 2026, Behavior change: [Amazonas NFC-e accepts CFOP 5.949 for tips](https://harbyn.com/changes/sefaz/2026-09-25-validation-rule-changes.md) (effective Oct 5, 2026; recorded after the fact)
- Sep 9, 2026, Behavior change: [NF-e accepts CFOP 1.949 and 2.949 on goods-return invoices](https://harbyn.com/changes/sefaz/2026-09-09-validation-rule-correction.md)