Many taxpayers unintentionally make mistakes while filing their Income Tax Returns, which can lead to notices, delayed refunds, additional tax liability, or penalties. Some of the most common errors include selecting the wrong ITR form, failing to report all sources of income, incorrectly claiming deductions, ignoring interest income from bank deposits, and mismatching financial information with official tax records. Taxpayers should also carefully verify details such as PAN, Aadhaar, bank account information, and tax deducted at source (TDS) before submitting their returns. Keeping organized financial records throughout the year significantly reduces the chances of errors and simplifies the filing process. Filing returns before the due date and reviewing all information thoroughly can help ensure compliance and prevent unnecessary complications. Seeking professional assistance is especially beneficial for individuals with multiple income sources, capital gains, foreign assets, or business income, as expert guidance helps maximize eligible deductions while ensuring complete accuracy and compliance.