NFS-e, the Nota Fiscal de Serviço eletrônica, is Brazil's electronic invoice for services. Each municipality used to set its own model; since January 2026 a national standard is mandatory, with a national issuer on the web, an API and an IBSCBS group for the new consumption taxes. Municipalities join by agreement, and many municipal variants are still in use. Klarbon support is planned, not available yet.
What is in a national NFS-e?
| Property | Value |
|---|---|
| Covers | services, taxed by municipalities through ISS |
| Standard | national NFS-e layout and schemas, published on the NFS-e portal |
| Mandatory | from January 2026, under Complementary Law 214 |
| Issue | national issuer on the web, or the API |
| Tax reform | IBSCBS group from January 2026 |
| Municipalities | join by agreement with the Receita Federal |
The NFS-e portal publishes the layouts, the technical notes and news on the national standard (NFS-e portal). The Ministry of Finance announced the obligation from January 2026 and noted that 1,463 municipalities had signed up by August 2025 (Ministry of Finance). A city guide shows how the move works for one municipality, including the API and the IBS and CBS fields (Belo Horizonte).
NFS-e or NF-e?
| NFS-e | NF-e | |
|---|---|---|
| Covers | services | goods |
| Main tax | ISS, municipal | ICMS, state |
| Authority | municipality, through the national system | state tax authority (SEFAZ) |
| Standard | national standard and remaining municipal variants | one national layout, model 55 |
What does Klarbon do with NFS-e?
Klarbon does not support NFS-e today; opening NFS-e XML is planned, not available yet. Klarbon does not issue NFS-e or connect to the national system or a municipality.
Related
Frequently asked questions
What is an NFS-e?
The Nota Fiscal de Serviço eletrônica, the Brazilian electronic invoice for services, which are taxed by municipalities through ISS. Until the national standard, each municipality could set its own model.
What is the national NFS-e?
A single national standard for the NFS-e, with a national issuer on the web and an API. Since January 2026 it is mandatory under Complementary Law 214, and municipalities join it by agreement with the Receita Federal.
Do municipal NFS-e formats still exist?
Yes. Many municipal systems and layouts remain in use as municipalities move to the national standard, so one schema does not cover every NFS-e in Brazil.
What changed for the tax reform?
From January 2026 the national NFS-e layout has an IBSCBS group for the new consumption taxes, IBS and CBS, and the portal publishes technical notes with the filling rules.
Sources
- Portal da Nota Fiscal de Serviço eletrônica (in Portuguese) gov.br
- Ministry of Finance, the national NFS-e becomes mandatory from January 2026, August 2025 (in Portuguese) gov.br
- Belo Horizonte city finance department, national NFS-e guidance and FAQ, version 7.1, April 2026 (PDF, in Portuguese) fazenda.pbh.gov.br