How do scammers impersonate government agencies?
Scammers use spoofed phone numbers that display real government caller IDs, forged official-looking documents, and scripted calls that mimic real government language and processes.
Last reviewed: 10 June 2026
Explanation
Government impersonation is effective because fear of authority is deeply embedded. A call that appears to come from the tax authority, immigration department, social security administration, or police carries immediate weight, and the threat of arrest, deportation, or frozen benefits short-circuits scepticism. Scammers select whichever government body is most likely to frighten their target demographic — tax agencies for working-age adults, immigration authorities for those with visa status concerns, social security for retirees.
Caller ID spoofing is a key enabler. Technology allows scammers to display any phone number they choose. Victims who look up the displayed number and find it genuinely belongs to the relevant government agency may be entirely convinced by the call. Some scam operations are sophisticated enough to direct the victim to a fake website that mirrors the real agency's site, which displays when the victim searches for the number.
The language and process in these calls is carefully researched. Scammers use real terminology — case numbers, statute references, formal procedural language — to sound authoritative. They may instruct the victim to press a number to speak with an officer, creating the appearance of a proper government hotline workflow. The call often follows a script that includes answers to common questions and objections.
Urgency and secrecy are signature tactics. The victim is told they must settle the matter immediately — today, right now — and must not tell anyone else, including a lawyer, until the issue is resolved. Both instructions serve the scammer: urgency prevents verification, and secrecy prevents a trusted person from identifying the fraud. Legitimate government agencies send formal written notices, allow time to respond, and have no reason to demand secrecy.
Common red flags
- A government agency called you unexpectedly demanding immediate payment
- The caller says you will be arrested or deported unless you pay now
- You are told to keep the call secret and not speak to a lawyer
- Payment is requested in gift cards, crypto, or wire transfer
- The case number or document number mentioned cannot be verified on the agency's real website
- The caller is unwilling to send written confirmation or allow you to call back
What to do now
- Hang up and call the government agency using a number from their official website
- Do not call back the number that called you — it may be spoofed
- Remember that real tax and government agencies send formal written notices first
- Report the call to the relevant agency's fraud reporting line
- Share the experience with others — government impersonation scams are common and word of mouth helps
- Check your country's consumer protection authority for guidance on specific agency impersonation scams
Frequently asked questions
Would a real government agency ever leave a voicemail threatening arrest?
No. Threatening voicemails demanding immediate payment to avoid arrest are never from real government agencies. Legitimate agencies send written notices and allow a formal response period.
Can I verify a case number mentioned in a call?
You can try calling the agency's official number and asking, but do not use any number supplied during the suspect call. Search for the agency's official contact on its real government website.