While millions of Americans have had their coronavirus stimulus checks deposited into their accounts, others are have to wait for the proverbial check in the mail.

The first round of stimulus payments – up to $1,200 for individuals, $2,400 for married couples and $500 per child – began arriving last week starting with those who had their direct deposit information on file with the IRS through their 2018 or 2019 tax returns.

The IRS also has a tool that allows people to provide their direct deposit information and track their money, though people have reported issues with error messages and lack of tracking data on the site.

Social Security recipients and other select retirees are next on the list. After that will come those who don’t have information on file. In those cases, the stimulus money will come in the form of a paper check.

Citing an internal IRS memo, the Washington Post reported that paper checks would starting being distributed on April 24, with a goal of mailing about 5 million per week. The first round would go to those earning $10,000 of less, with income levels increasing by $10,000 each week.

Those earning the most would receive their checks the latest, according to the IRS.

The process would be sped up if more people use the IRS link and provide direct deposit information, officials said.

The stimulus provides $1,200 for individuals earning up to $75,000 and $2,400 for married couples filing jointly who earn up to $150,000. Recipients who earn more than those amounts will see their payments reduced by $5 for each $100 above the income threshold. Single filers who earn more than $99,000 and joint filers who earn more than $198,000 are not eligible. The stimulus also provides $500 for each qualifying child.