SAT electronic signature: what is it and why do you need it?

The SAT electronic signature, now known as e.firma, is the digital file that identifies you when carrying out procedures and services before the Tax Administration Service. Then you will know what it is for and why an entrepreneur should have it.

Currently, Mexican entrepreneurs have technology as their great ally. Thanks to it, they can sell online without having a physical location, be in contact with customers, create an online store and use services digitally.

Agencies such as the Tax Administration Service have digitized their processes and now, thanks to the SAT electronic signatureyou can identify yourself to carry out procedures more quickly.

Next I will explain what this is for e.signaturehow to process it and when you have to present it.

What is the electronic signature SAT, now e.firma?

The SAT electronic signature, also known as e.firma, It is a file that digitally identifies you to carry out procedures in the Tax Administration Service and in other government and private agencies.

It is a secure and encrypted file that is given to a single person and that has the same validity as a handwritten signature, so you should feel safe when using it.

What is the SAT electronic signature for?

If you want to know what the SAT electronic signature is for, keep reading. The following information will be of great help to answer any questions you may have about your business.

The electronic signature or e.firma serves to identify you, carry out procedures and take advantage of the services offered by the SAT remotely.

In addition to what has already been mentioned, other of its main uses are:

Register or unsubscribe from the Tax Administration Service system.
Access SAT applications using dynamic passwords.
Carry out official procedures safely and without queues.
Manage your account remotely on any device with internet access.

How to obtain the electronic signature in the SAT?

According to the , to obtain your e.signature certificate –also known as an electronic signature– for the first time, you must schedule an appointment in person to visit any office of the Tax Administration Service and meet the following requirements:

Have an email that you have access to frequently.
Present a removable memory (USB) in which the e.signature file (.req file), generated in the .
Fill out the official form FE “Request for Certificate of e.signature”.
Have CURP.
In case of being Mexican by naturalization, present the original or certified copy of the naturalization letter issued by the competent authority.
If you are a foreigner, present Multiple Immigration Form, issued by the National Institute of Migration.
Proof of address. If you are registered in the Wages and Salaries Regime, you can present your INE, as long as the address is visible.
Valid official identification.
If you are part of any of the cases of legal representation, you must present the information indicated in .

Once your procedure proceeds, you will obtain the e.signature digital certificate in a digital file with a .cer ending and proof of renewal of the e.signature Certificate.

💡Fact: In case you are registered as a legal person, the process will be similar to the previous one, with the difference that you will have to present your articles of incorporation, a general power of attorney to carry out acts of administration and have your e.signature valid as a natural person.

How to download your e.signature certificate?

If you want to quickly download the latest e.firma certificate, you have to follow these steps:

Have your RFC or the serial number of the certificate.
Click to run online.
Write the captcha code that appears on the screen.
Choose if you want to retrieve your certificate by entering RFC or serial number (I recommend using the first option).
Select the certificate you want to download by selecting the serial number.

When is the electronic signature presented in the SAT?

you shall submit your SAT electronic signature online whenever you need to make an update to your e.firma file, derived from the update of your activities or due to any adjustment in your personal information.

How long is the SAT electronic signature (now e.firma) valid for?

Your e.signature is valid for four years. Once this period has elapsed, you must request a renewal of the certificate. This process is completely free and you can do it online or in person at any of the SAT offices.

How to renew the SAT electronic signature?

Once the expired certificate of your e.signature –formerly known as the SAT electronic signature–, you must follow the following process at any time and up to 24 hours before expiration.

Renew your e.signature online

Generate your renewal request file (.ren) in .
Click to start the renewal procedure.
Sign in with your current e.signature.
Choose the “Certificate Renewal” option.
Select the browse option to upload the previously generated renewal request (.ren) file.
Click on the “Renew” option, write down the transaction number in a safe place and choose the “Follow-up” option.
Save and print the acknowledgment of receipt of your digital certificate renewal process by clicking on the “Proof” button.
Press the “Back” button and go to the “Certificate Recovery” section.
Choose the “Certificate recovery” option, write your RFC and click “Search”.
Select the serial number of the active certificate of your electronic signature and save it in the same folder where you have your Renewal Request files and private key.

Renew your e.signature in person

Request and schedule an appointment for the renewal and revocation service for natural persons.
Go to your appointment with a valid official identification.
It presents a removable memory (USB) with the file ending in .req generated through the Certifica program.
Have your email at hand.
In the event that the procedure is carried out by a Legal Representative of Natural Persons, they must ratify that they have said appointment by filling out a document that will be provided during the appointment.

Join the largest community of entrepreneurs! 🚀 We will keep you updated with the best content, tools and news from the entrepreneurial world.

conclusion

Anyone who is thinking of creating a business should take into account that the procedures before the Tax Attribution Service are vital to take the first steps towards success.

This guide will help you request your electronic signature SAT and renew it quickly and easily, either in person or online. Do not forget that as an entrepreneur, it is important that you have all your updated documentation so that your business can operate normally.

If you already have your e.firma and are looking for a platform to create your online store in a short time and without having advanced technical knowledge, come to , the preferred tool for all entrepreneurs in Latin America to sell online like a professional. Y Discover all the functionalities available for your brand.