Workers can check if their fingerprint is properly registered:
: Starting in late 2025 and 2026, the IMSS began implementing mandatory biometric enrollment through the IMSS Digital app to prevent fraud and eliminate the need for physical "survival" check-ins. How to Access and Use the SIAP Biometric Portal siapportal imss gob mx biometrico
A maquiladora in Ciudad Juárez was fined 1.2 million pesos for having 45 workers without biometric registration despite reporting them as active. Workers can check if their fingerprint is properly
You will need your RFC, an active e.firma (digital certificate), and its corresponding private key and password. A: Yes
A: Yes. The employee can visit any IMSS subdelegation in the Republic. The employer registers them online, and the employee presents their CURP at the nearest office for capture.
Warning: Always verify the SSL certificate. The URL must begin with https:// and show a padlock icon. Avoid phishing sites.
Do not wait for a medical emergency to find out your NSS is blocked. Visit your nearest IMSS Subdelegación with your CURP and ID today.