To use the "Where's My Refund?" feature on the IRS website, the taxpayer needs his filing status, his exact refund amount and either his Social Security number or ITIN, according to the IRS. Once this information has been entered, the feature informs the user that his tax return was received and is currently in processing, tells him that the refund wasn't able to be delivered, or gives him a mailing date or deposit date for his refund.
The "Where's My Refund" feature should be used within 24 hours after the IRS has received the taxpayer's electronically filed return or four weeks after mailing the paper tax return, notes the IRS. While the IRS usually sends out refunds in fewer than 21 days, there are times when a tax return needs more time to be fully reviewed. The "Where's My Refund" feature might also prompt the taxpayer to call an IRS representative.
The IRS also has an IRS2Go app that taxpayers can use to find their tax returns, according to Bankrate. The app is available on Apple and Android devices and requires the same information as the "Where's My Refund" feature. The app allows users to sign up for updates from the IRS and offers a list of contact numbers for tax help lines.