To issue electronic invoices in Mexico, you need the Digital Seal Certificate (CSD). This tool is essential for any individual or company, especially entrepreneurs and SMEs, to be able to issue electronic invoices. In this guide, we explain in simple terms what a CSD is and how to generate it step by step.

Contents:

• What is a Digital Seal Certificate (CSD)?

• Why do you need a CSD?

• How to Generate a CSD File Step by Step

• Tips and Recommendations

• Conclusion

What is a Digital Seal Certificate (CSD)?

A Digital Seal Certificate, or CSD, is a digital file issued by the SAT that allows you to electronically sign your invoices, ensuring their authenticity and protection.

Why do you need a CSD?

Having a CSD not only allows you to issue invoices legally, but it also offers you multiple benefits, such as:

• Contributing to expense verification for your budget.

• Acting as documentary support for your accounting.

• Facilitating tax deductions for both you and your clients and suppliers.

• Securing your transactions.

How to Generate a CSD File Step by Step:

Step 1: Prerequisites

• Registration with the SAT and Tax Mailbox: You will need your RFC and the SAT password.

• Valid e.signature: If you do not have it yet, request your e.signature by following the steps on the official SAT website.

Step 2: Access the SAT Portal

• Enter the portal using this link and log in with your e.signature.

Step 3: Request the Digital Seal Certificate

• Download the CERTIFICA application. Make sure to select the correct version for your operating system (32 or 64 bits).

• Through the application, follow the SAT instructions to request your CSD.

Step 4: Submit the Digital Seal Certificate Request

• Use this link to access the SAT portal.

• Navigate to the