Is a voicemail from the IRS or HMRC threatening immediate arrest for unpaid tax real?

Government impersonation robocall fraud is one of the highest-volume scam formats globally. Victims receive automated or live calls claiming to be from the IRS (US), HMRC (UK), ATO (Australia), or equivalent agencies, warning that a warrant has been issued and police will arrive unless they pay immediately. The calls use official-sounding language, badge numbers, and sometimes spoofed caller IDs. Real tax authorities communicate by official post before any enforcement action, allow time to respond, and have formal appeals processes. They do not demand immediate payment by wire transfer, cryptocurrency, or gift card over the phone. If you receive such a voicemail, do not call back the number provided.

The emotional design of these calls deserves attention, because fear works even on people who intellectually know better. Threats of arrest short-circuit deliberation and push victims toward immediate compliance, while the instruction to stay on the line and tell no one exists to block the one thing that reliably breaks the spell — a pause and a second opinion. If a call or voicemail about tax leaves you frightened, that fear is itself diagnostic: real tax administration is slow, paper-based, and procedural, and it never needs you scared. Hanging up, taking an hour, and checking your actual tax account directly costs nothing and defeats the entire approach.