https://www.siliconvalley.com/2020/12/30/your-600-stimulus-check-may-already-be-in-your-bank-account/

Americans can expect to start seeing $600 in their bank accounts immediately as the federal government’s second round of stimulus payments is being sent out, the Treasury Department and the Internal Revenue Service said.

The direct deposits will continue into next week, while paper checks will be mailed out beginning Wednesday. Treasury Secretary Steven Mnuchin on Tuesday said that the Treasury and the IRS are working with “unprecedented speed” to issue the second round of payments.