To file your Income Tax online and free of cost , please visit Income Tax Department, Govt of India's web portal incometaxindiaefiling.gov.in ONLINE FILING Take the website https://incometaxindiaefiling.gov.in/ Register on the website using your PAN Card Number LOGIN to the portal with your credentials. GO TO e-File - Income Tax Return - Prepare and Submit Online OFFLINE FILING Download the applicable Income tax return (ITR) form from Downloads section of the website Fill it offline Generate XML and save it on the desktop. Register on e-Filing website using your PAN Card Number LOGIN to the portal with your credentials. Go to e-File - Income Tax Return - Upload Return QUERIES For Income tax related queries : 1800 180 1961 For Rectification and Refundrelated queries : 1800 425 2229 For e-Filing related queries : 1800 4250 0025 For more details visit incometaxindiaefiling.gov.in