You can fill the Professional Tax Application form by simply visiting the official website of Professional Tax i.e. The site’s link is given here for your help. http://pt.kar.nic.in Here are the next steps you can follow: 1. After clicking on the link, locate the ‘Enrolment Application’ section and click on the icon. A new page window will open. 2. Here you will see two options ‘new’ and ‘enrolled’. If you are using the site for the first time click on the ‘new’ button. 3. Enter the details asked. These can be the financial year, the professional tax office, the type of return, business status, etc. You will then have to enter other necessary details as asked for. The final step will require you to make the payment which can be done via credit/debit card or by net banking. Once the payment is done, you will receive a receipt which you must download and keep for future reference.