First access to Brazil's Emissor Nacional for ME and EPP companies
Updated · Rotomal
In the Emissor Nacional, gov.br login works only for MEI. ME and EPP companies, even in the Simples Nacional, log in one of two ways: a username and password created under first access, which checks the legal representative's details such as voter ID or income tax receipts, or an e-CNPJ or e-CPF digital certificate. The official FAQ of 27 October 2026 says access also depends on the city authorising the CNPJ in the Complementary National Register (CNC); the guidance of 29 October 2026 says that for periods from 1 November 2026 all Simples companies are enabled, whether or not they are in the city register. If access still fails over registration, the fix is with the city.
The three ways to log in
| Method | Who can use it | Note |
|---|---|---|
| gov.br account (silver or gold) | MEI only | For ME and EPP the system says issuing is allowed only for MEI companies |
| Username and password | ME, EPP and other companies | Created under first access; the CPF must be the CNPJ's legal representative |
| Digital certificate | Any company | e-CNPJ, or e-CPF, including a proxy's |
First access step by step
- In the Emissor Nacional, choose first access (Fazer primeiro acesso) and enter the CNPJ and the legal representative's CPF.
- Pass the identity check: voter ID or the representative's last two income tax receipts.
- Create the password and log in with username and password.
- Check and complete the company data, an address with a valid CEP and the Simples regime.
- Set up the services you provide before issuing the first invoice.
Common errors and what they mean
| Message or code | Usual cause | What to do |
|---|---|---|
| Não foi possível criar seu usuário | CNPJ not authorised in the city register or data differs from the Receita's | Check the data with your accountant and your status with the city |
| E0037 | City has no formal agreement with the national standard | Contact the city; it does not depend on you |
| E0039 | City has not yet enabled the national issuers or finished its configuration | Contact the city |
| E0010 | DPS series outside the range for the channel used (web, app or API) | Use the series range for that channel |
| E0316 | NBS code not in the national table (version 2.0) | Use the NBS 2.0 code |
| E0240 | Invalid CEP in the register | Correct the company's or customer's CEP |
Codes and explanations from the official FAQ, version 1.2 of 27 October 2026.
When a digital certificate is worth it
For the web issuer, the official FAQ lists username and password as an alternative to a certificate for ME and EPP. The provider's own ICP-Brasil certificate is mandatory if your ERP or paid issuer sends invoices through the API, and it helps if a proxy will issue for you.
For accountants, since 1 November the portal supports representation and profile switching, without sharing your password.
Questions
I was MEI and became ME. Does my gov.br login still work?
Not for issuing as an ME. Do the first access with username and password or use a digital certificate.
Can my accountant issue for me?
Yes. They can use a proxy's digital certificate or the portal's new representation and profile-switching feature.
Is the city service code still needed?
The 6-digit national tax code is the main one. The 9-digit city code is optional, and if it is rejected you can send only the national code.
How long does setup take?
With the details at hand and the city enabled, it usually fits in one call of about 45 minutes, including the first invoice.
Sources
- National NFS-e portal: FAQ v1.2 (27 October 2026), items 3, 4, 17, 18, 21, 27 Source: gov.br
- National NFS-e portal: representation and profile switching Source: gov.br
- National NFS-e portal: guidance for Simples companies (29 October 2026) Source: gov.br
- Fórum Contábeis: Emissor Nacional 'MEI only' error for a new Simples company Source: contabeis.com.br