This one's simple: the IRS never takes payment by gift card, wire, or crypto. A gift-card demand is always a scam. Paste the message for the full read.
Gift cards are untraceable — which is exactly why scammers demand them and the IRS never does. Real tax payments go to the U.S. Treasury.
Don't buy any cards or read card numbers to anyone. Hang up / stop replying and report it to TIGTA and the FTC.
Never. The IRS does not accept gift cards, wires, or crypto. Anyone demanding that is a scammer.