Over one million Americans have still not received their $1,400 stimulus checks from the federal government. It’s not too late for those that qualify — ahead of the April 15th tax deadline.

The Internal Revenue Service started sending out approximately $2.4 billion to 1 million taxpayers back in December for Recovery Rebate Credit checks that hadn’t been claimed yet. However they estimate another 1 million taxpayers are still missing out on $1 billion in stimulus, simply because they haven’t filed their 2021 income taxes.

April 15th is Tax Day for 2024 returns but it also marks a three-year deadline to claim any tax refunds or in this case, the $1,400 Recovery Rebate Credit for that year — 2021.

Here’s what to know about the stimulus and if your qualify for it.

Who is eligible for the stimulus check?

Taxpayers in the U.S. that didn’t file or claim the Recovery Rebate Credit on their 2021 tax return are qualified to apply for it.

The refundable credit was for taxpayers who didn’t get one or more Economic Impact Payments (or stimulus checks) during the COVID-19 pandemic.

The stimulus amount is dependent on your adjusted gross income. In order to qualify for the full $1,400, the taxpayers’ annual income must not have been more than $75,000 for single filers or $150,000 for married couples filing jointly.

How do I claim the $1,400 stimulus check?

If you filed your previous tax returns, then you don’t have to do anything but wait for the IRS to mail a check or use direct deposit into the last bank account provided in the 2023 tax return. They will notify you of such in a separately mailed letter.

However, if you have not filed a 2021 tax return to date, then you have until April 15, 2025, to file back-year returns. The IRS has a three-year deadline to claim a refund on tax returns.