1. To file taxes, you must first register on the government tax website if you are a new user. Then download your Form 16 and salary certificate from the previous year. 2. Upload your Form 16 and salary certificate to the relevant sections on the tax filing website. Be sure to fill out all mandatory fields like name and address. You can claim deductions for items like HRA, medical expenses, education loans, etc. 3. After submitting your return, you will receive an acknowledgment number. Then verify your return online by entering the one-time password sent to your registered email or mobile number.