Fake SAT Tax Office Scams in Mexico
Fraudsters impersonating Mexico's SAT (Servicio de Administración Tributaria) demand immediate tax payments or threaten criminal prosecution for fabricated tax debts.
Part of: Fake Tax Office Scams
Last reviewed: 1 June 2026
The SAT is one of Mexico's most feared institutions, and fraudsters exploit this by impersonating SAT officials in phone calls, emails, and text messages. Victims are told they have an unpaid tax liability, a cancelled RFC, or that their business account is under investigation — and must pay immediately to avoid penalties or criminal charges.
The scam is convincing because the SAT genuinely contacts taxpayers by phone and email, and because tax obligations in Mexico can be complex, making it hard for victims to immediately know whether a claim is legitimate.
How this scam works on Mexico
A call arrives from someone identifying as a SAT auditor, citing the victim's RFC (tax ID) and claiming a critical discrepancy in recent filings. The 'official' explains that without immediate payment of MX$[amount] via SPEI transfer or OXXO, the victim's RFC will be cancelled and criminal charges filed for tax evasion.
Email variants send official-looking messages with forged SAT letterheads and links to fake SAT payment portals that harvest banking credentials. SMS versions send urgent links supposedly leading to a 'tax penalty notice' but actually installing malware.
Small businesses and self-employed professionals (personas físicas) are particularly targeted because they have more complex tax situations and greater anxiety about compliance.
Common red flags
- Urgent phone call demanding immediate payment to avoid RFC cancellation
- Email with SAT branding containing links to a domain other than sat.gob.mx
- Request for payment via OXXO, personal bank transfer, or any method outside the official SAT portal
- Threat of immediate criminal prosecution without any prior official written correspondence
- Caller knows your RFC but cannot provide a verifiable official case or expediente number
- Payment amount cited cannot be verified on the official SAT portal
How to protect yourself
- Access your tax account only through the official SAT portal at sat.gob.mx
- Verify any alleged tax debt by logging into My SAT Portal (Mi Portal SAT) before taking any action
- The real SAT sends formal written notifications (actas) — verbal-only demands are a red flag
- Call SAT's official helpline (MarcaSAT: 55 627 22 728) to verify any claim before paying
- Never click links in tax-related emails — go directly to sat.gob.mx
How to report it
- Report SAT impersonation to the real SAT via MarcaSAT or at sat.gob.mx
- File a cybercrime report with the Guardia Nacional Policía Cibernética
- Report phishing emails to CERT-MX at cert.org.mx
Frequently asked questions
Will SAT cancel my RFC without any prior written notice?
No. SAT must follow formal administrative procedures before cancelling an RFC or initiating criminal proceedings. These involve written notifications and opportunities to respond. A phone-only threat of immediate cancellation is a scam.