The IRS provides methods for checking the status of your return within the normal processing time -- 21 days for e-filed returns and four weeks for mailed returns. Check the status on the IRS website using the “Where’s My Refund” link or use the “IRS2Go” mobile application. Tracking systems update every 24 hours.You also may call the IRS Refund Hotline at 800-829-1954 for automated information 24 hours a day. Check the status of an e-filed tax return within 24 hours of the filing.Wait four weeks to check the status of a mailed paper return. Processing Returns. The IRS issues most tax refunds in fewer than 21 days, according to the agency’s website.racking systems update every 24 hours. You also may call the IRS Refund Hotline at 800-829-1954 for automated information 24 hours a day. Check the status of an e-filed tax return within 24 hours of the filing.