Most Americans saw that $1,200 stimulus check automatically deposit into their bank accounts. However, Americans who did not submit a 2019 tax return were required to provide additional information to the Internal Revenue Service (IRS). That information includes their name, address, date of birth, Social Security number, bank account information, and personal information of their dependents.

And the deadline to do so is fast approaching: Non-filers must submit their information to the IRS by Saturday, November 21 at 3 pm in order to register for the $1,200 stimulus payment. You can submit that information here.

There could be a fair amount of money on the line, depending on your situation. The CARES Act mandated a stimulus check worth as much as $1,200 for individuals or $2,400 for married couples, plus $500 for each qualifying child. That amount decreases for adjusted gross income above $75,000 per individual or $150,000 per qualified couple. And the checks phase out for individuals earning above $99,000, head of household filers with one child above $146,500, and joint filers with no children at $198,000.

For months Congress has debated sending Americans a second $1,200 stimulus check as part of another economic aid package. However, Democratic and Republican leaders have been unable to reach an agreement. The consensus on Capitol Hill is that another massive economic aid package won’t come until after the inauguration of Joe Biden on January 20.