Paying Self-Assessment Tax before filing your income tax return offers several advantages that go beyond mere compliance. First, it helps avoid interest and late payment penalties that can accrue if the tax is left unpaid at the time of filing. Second, when the correct amount is deposited in advance, the process of filing returns becomes smoother, and the income tax department is less likely to issue notices or audits later. This also ensures you receive accurate refunds (if any) faster, since tax credits are properly reflected against your profile in Form 26AS. Lastly, settling tax liabilities on time reflects good financial discipline — important for personal financial health and credibility if you are applying for loans or financial assessments.