Accounting in Brazil

Nota Fiscal: Brazil's Mandatory Electronic Invoice

31/08/2026

Brazil's Nota Fiscal Eletronica has been mandatory since 2008 for every CNPJ selling goods or services, regardless of tax regime.

Brazil has required an electronic invoice, the Nota Fiscal Eletronica, since 2008. Any company with an active CNPJ must issue one for every sale of goods or every service rendered, regardless of tax regime: Simples Nacional, Lucro Presumido or Lucro Real all carry the same obligation.

Two documents, two authorities

The requirement splits by activity. A company selling physical goods issues an NF-e (model 55), authorized at the state level by each Secretaria da Fazenda (SEFAZ) and tied to ICMS. A company rendering services issues an NFS-e, authorized by the municipality where it is registered and tied to ISS. A company that both sells products and provides services, common in retail with installation or delivery apps, issues both documents for the same transaction.

What triggers the obligation

The Nota Fiscal is not optional once gov.br finishes registering the CNPJ through REDESIM: from the first invoiced transaction, the company must issue the document before or at the moment of delivery. A missed or incorrect Nota Fiscal exposes the company to tax assessment on the unreported revenue, since state and municipal systems cross-reference invoices against the declared tax regime.

Where CNAE and Simples Nacional intersect

The CNAE code registered for the company determines part of the invoice’s tax treatment: the ICMS rate on an NF-e and the ISS rate on an NFS-e both key off the activity code and the municipality’s tax table. A company under Simples Nacional also reports invoiced revenue in the PGDAS-D monthly return, which is what the ledger uses to calculate the unified rate. Online accounting keeps this chain consistent: the CNAE registered at opening, the invoice issued at each sale, and the monthly tax return all need to match, and a mismatch is what usually triggers a state or municipal audit.

FAQ

Does a MEI need to issue a Nota Fiscal? Yes, for sales to other CNPJs and for most services; sales to individual consumers are commonly exempt depending on the municipality, but the MEI should confirm the local rule before skipping the document.

Can a company issue a Nota Fiscal before the CNPJ is fully active? No. The CNPJ must be active and, for goods, the state tax registration (Inscricao Estadual) must be granted before the state’s invoicing system will authorize an NF-e.