https://bit.ly/3aUZ5tw. You can check the status about 24 hours after the IRS acknowledges receipt of your electronically filed tax return or up to four weeks after a you mail a paper return. To use the tool, you’ll need your Social Security number, tax filing status and exact amount of the refund claimed. The refund tool updates every 24 hours, usually overnight, so you only need to check once a day. You also can check your refund status through the “IRS2Go app” for your mobile device.