6 Reasons Why Income Tax Refund Could Be Delayedbr br br 1. Last minute filingbr 2. Paper-based verification of ITRbr 3. Mistakes in the tax-filingbr 4. Mis-match with form 16 and 26AS br 5. Incorrect bank account detailsbr 6. Not verifying onlinebr br br However, if you do not get any status update, you may wait for at least two months before you act.