How to Consult the NSS in Mexico: Complete Guide

The Social Security Number (NSS) is a key identifier for workers in Mexico.

This number is issued by the Mexican Social Security Institute (IMSS) and allows access to health services, retirement and other social security benefits. If you need to check your NSS, this article explains how to do it in a simple way.

What is the NSS and what is it for?

The NSS is a unique and non-transferable number assigned to each worker from their first formal employment. It is essential for:

• Register with IMSS and access medical care.
• Contribute to your retirement and other employment benefits.
• Carry out procedures related to the National Housing Fund Institute for Workers (INFONAVIT).
• Access credit and financial services.
• Validate your professional history with various institutions.
• Facilitate the completion of government procedures related to social security.

If you have forgotten your NSS or need to check it for the first time, follow the steps below.

How to Consult the NSS Online

IMSS offers an online tool for quickly and free consultation of the NSS. Follow the steps below:

Step 1: Access the IMSS Portal

Visit the official IMSS website: www.imss.gob.mx. Once there, look for the option “Consulta tu NSS”.

Step 2: Provide Your Personal Data

To obtain your NSS, the system will ask for the following information:

• CURP (Single Population Registration Code).
• Valid email.
• In some cases, additional information may be requested to verify your identity.

Make sure you enter the data correctly to avoid errors in the query.

Step 3: Receive your NSS

After providing the information, the system will display your NSS on the screen. In addition, you will receive an email with the data so that you can store it.

Benefits of Online Consultation

Consulting your NSS online offers several advantages:

• Fast and available 24 hours a day.
• There is no need to appear in person at an IMSS unit.
• You receive the information directly in your email.

How to Consult the NSS in Person

If you prefer to carry out the procedure in person, you can go to an IMSS Sub-delegation with the following documents:

• Official identification document (INE or passport).
• CURP.
• Birth certificate.

IMSS customer service will help you get your NSS on the spot. It is recommended to arrive early to avoid queues and bring copies of the documents to speed up the process.

How to Consult the NSS through the IMSS Digital Application

Another quick and convenient option is through the IMSS Digital app. Follow these steps:

1. Download the IMSS Digital app from Google Play or the App Store.
2. Open the application and select the option “Consulta tu NSS”.
3. Enter your CURP and email.
4. You will receive your NSS through the app and also by email.

Advantages of Using the IMSS Digital Application

• Available at any time.
• Allows you to carry out other procedures related to the IMSS.
• Avoids the need to access via browser.
• Compatible with iOS and Android devices.

What to Do if There is an Error in Your NSS?

If you identify an error in your NSS, you must go to an IMSS Sub-delegation with the following documents:

• Official identification document.
• CURP.
• Birth certificate.
• Employment documentation (if applicable).

IMSS support can correct the error and provide the correct NSS. You may also need to fill out a form to request the correction.

NSS FAQs

1. Can I consult someone else's NSS?

No, the NSS is personal data and can only be consulted by the holder. In some cases, a direct family member with authorization can carry out the consultation at an IMSS unit.

2. How long does it take to get NSS?

If the consultation is made online or through the app, the response is immediate. If it is made in person, it may take a few minutes, depending on the number of people waiting.

3. Does the NSS change over time?

No, the NSS is permanent and does not change, even if you change jobs or locations.

4. Is it mandatory to have an NSS?

Yes, any formal worker in Mexico must have an NSS in order to contribute to the IMSS and access social security benefits.

5. Can I check my NSS without an email?

No, both for the online consultation and the IMSS Digital app, you need to provide an email address. However, if you do not have one, you can make the consultation in person.

Conclusion

Checking your NSS is a simple process that can be done online, through the IMSS Digital app, or in person. This number is essential for accessing IMSS benefits and other employment services. Make sure to keep it in a safe place and, if you have any questions, seek assistance from IMSS.

If this article was useful to you, please share it with others who may need to consult their NSS in Mexico.