# NFCom: What do you, as an ISP, need to know?

> NFCom is coming to replace Models 21 and 22, changing how you issue invoices for telecommunications services.

Fonte: https://hubsoft.io/en/blog/nfcom-what-you-as-an-isp-need-to-know/

[Tax](/en/blog/category/tax/) 

# NFCom: What do you, as an ISP, need to know?

NFCom is coming to replace Models 21 and 22, changing how you issue invoices for telecommunications services. Mandatory compliance begins on November 1, 2025, but the testing environment has been available since July 2024\. Why is this important for you? Everything digital: 100% electronic issuance \[…\]

![Photo of Thamires, Content and ISP Market Specialist—I liked it better](/_astro/Thamires%20Autora%20Conteudos%20Hubsoft_Z29l1w0.webp)  By **Thamires Couto** Published on August 26, 2025 Updated on October 14, 2026 1 min read 

![Article cover image: NFCom: what you, as an internet service provider (ISP), need to know?](/_astro/blog-nfcom-o-que-voce-provedor-precisa-saber-capa_sFpG.webp) 

**Article published on August 26, 2025**, before NFCom became mandatory. For the current rules and deadlines, see the [NFCom guide for ISPs](/en/nfcom-for-isps/).

## Key points

* NFCom replaces Models 21 and 22 telecommunications invoices, with mandatory compliance starting November 1, 2025.
* The testing environment has been available since July 2024, and issuance and transmission will become 100% electronic.
* The ISP must be accredited with the state SEFAZ and have a valid A1 digital certificate (e-CNPJ).
* You need to configure the issuing system (models, taxes, and accountants) and test it in the homologation environment before the transition.

NFCom is coming to replace Models 21 and 22, changing how you issue invoices for telecommunications services.  
  
Mandatory compliance begins on **November 1, 2025**, but the testing environment has been available since July 2024.  
  
**Why is this important for you?**  

* Everything digital: 100% electronic issuance and transmission, with no complications.
* Real-time monitoring by SEFAZ: greater security and lower risk of errors or tax blocks.
* National standardization: simplifies audits and accounting records.

**What do you need to do?**  

* Be accredited with your state SEFAZ.
* Make sure your A1 digital certificate (e-CNPJ) is valid.
* Properly configure your issuing system (models, taxes, and accountants).
* Test in the homologation environment, ensuring everything works before the transition.
  
In addition to simplifying invoice issuance, NFCom enables greater integration with management systems, allowing you to track payments, manage tax contingencies, and automatically generate detailed reports. This helps your ISP identify optimization opportunities, reduce rework, and facilitate communication between administrative and finance teams. By preparing in advance, you also gain greater control over internal processes and avoid surprises during audits or inspections.  
  
If you have any questions, Hubsoft will be available to help.

![Photo of Thamires, Content and ISP Market Specialist—I liked it better](/_astro/Thamires%20Autora%20Conteudos%20Hubsoft_1iMJ1e.webp) 

[Thamires Couto](/en/blog/author/thamirescouto/)

Especialista em Conteúdo e Mercado de Provedores · Hubsoft

[LinkedIn](https://www.linkedin.com/in/thamires-couto-44b300226/) 

![Support agent with a headset helping a customer in a modern contact center](/_astro/site-cta03_R5VPG.webp) 

## Want to see this working at your ISP?

[ Request a Demo ](/en/request-a-demo/)

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