Top 10 Mistakes to Avoid When Filing Your Income Tax Return (2026 Complete Guide)

Filing an income tax return is not just a legal obligation but also an important financial activity that impacts your refunds, compliance status, and long-term financial record. Even a small mistake in your ITR can lead to penalties, delays in refunds, or notices from the Income Tax Department.

In 2026, with increased digital tracking through AIS (Annual Information Statement), Form 26AS, and bank-level reporting, accuracy in tax filing has become more important than ever.