How long does it take for IRS to approve your income taxes?

The IRS typically processes most tax returns within 21 days of receiving them, especially if filed electronically. However, some returns may take longer due to factors like errors, missing information, or additional reviews. For paper returns, processing times can be significantly longer, sometimes taking several weeks or even months. It's advisable to check the IRS website for any updates or specific timelines related to your return.