Brazil moved MEI invoicing onto one national NFS-e standard

The workload

A service seller in Brazil, including a solo software business organized as a Microempreendedor Individual (MEI), issues a Nota Fiscal de Serviço Eletrônica for each billable service rather than a paper receipt. Brazil taxes services at the municipal level through ISS, so historically each of the country's thousands of municipalities ran its own invoicing system; the federal government's own national NFS-e standard page, retrieved 16 September 2026, describes a project meant to unify and simplify the processes of issuing and keeping these documents nationwide, governed by a Comitê Gestor (CGNFS) that municipalities join by agreement rather than by a single federal mandate alone.

What the documents show

Verified: the portal's own definition page states an NFS-e is a document generated and stored electronically in a National Environment by the Federal Revenue Service or by the municipal government, built on the legal foundation of Complementary Law 116 of 31 July 2003, which lists the services subject to ISS. Verified: the same portal's page on legislation applicable to the MEI states that issuing an NFS-e in the national standard became obligatory for MEIs from 3 April 2023, under Resolução CGSN No. 169 of 27 July 2022, made under the framework of Complementary Law 123 of 2006. That page does not state a specific MEI revenue ceiling; it addresses the invoicing format duty, not the separate question of whether a given business still qualifies as an MEI under its own revenue limit.

The operating cost

The documents cited here do not state a single ISS rate, because none exists: the tax is set by each municipality within the national services list, and this entry does not assume a Brazil-wide figure. What is stated, verified, is the compliance mechanism itself: a business issues through the national web emitter or a municipal system tied to the same national environment, and an MEI has done so on the mandated format since April 2023. A founder billing into more than one Brazilian municipality carries as many potential ISS rates as municipalities served, a fact the national NFS-e standard does not change.

The stop condition

Editorial: the invoicing duty tracks the underlying service sale, not a revenue threshold stated in these documents; it stops when the business stops issuing taxable service invoices in Brazil, or when its MEI status lapses under the separate Simples Nacional revenue rules the cited pages do not detail.

• Which municipality's ISS rate applies to a given customer, and has that rate been confirmed with that city's own portal rather than assumed?
• Is the business still issuing on the national NFS-e standard the MEI resolution requires, or on a legacy municipal format?
• Does revenue from Brazilian customers risk crossing the separate MEI eligibility ceiling the invoicing rule does not itself police?

What the federal portal documents is the format of the paperwork, run through one national pipe; what it deliberately leaves to each city is the rate, and this entry leaves it there too.