IRS will never call you demanding a payment immediately

Things the IRS will never do:

1. Call to demand immediate payment, nor will we call about taxes owed without first having mailed you a bill..

2. Demand that you pay taxes without giving you the opportunity to question or appeal the amount they say you owe.

3. Require you to use a specific payment method for your taxes, such as a prepaid debit card.

4. Ask for credit or debit card numbers over the phone.

5. Threaten to bring in local police or other law-enforcement groups to have you arrested for not paying.

https://www.irs.gov/uac/newsroom/scam-phone-calls-continue-irs-identifies-five-easy-ways-to-spot-suspicious-calls

Stay safe.