Treasury said people waiting for $1,400 stimulus payments on March 24 can expect theirs by mail or prepaid debit card.
The IRS and Treasury are moving swiftly to issue tens of millions of direct payments.
Singles earning up to $75,000 in adjusted gross income qualify for the full amount.
Americans who don't receive a $1,400 direct deposit by March 24 can expect either a mailed check or a prepaid debit card, according to the Treasury Department.
The cabinet agency said in a statement that a second round of stimulus checks were sent out on Friday with a pay date of Wednesday, March 24. People waiting for checks after that date will likely receive theirs by mail.
"Taxpayers who do not receive a direct deposit by March 24 should watch the mail carefully in the coming weeks for a paper check or a prepaid debit card, known as an Economic Impact Payment Card, or EIP Card," Treasury said on Monday.
The Biden administration along with Congress approved $1,400 stimulus checks earlier this month, the third wave of federal payouts over the last year. The IRS started issuing the payments only a day after the rescue package was signed into law.
The Treasury Department said on Wednesday it had already deposited 90 million checks, amounting to $242 billion. It also said 150,000 paper checks were mailed.
Singles earning up to $75,000 in adjusted gross income qualify for the full amount, along with couples making up to $150,000. Each adult dependent is eligible for a check as well.
But the stimulus check amounts shrink much more quickly above those thresholds. Individuals earning more than $80,000 and couples making above $160,000 will receive zero.
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