Payment of Karnataka Professional Tax by the Registered Employer: Step: – 1 Visit Karnataka Commercial Tax Department’s webiste at https://vat.kar.nic.in/epay/ Step: – 2 Click on ‘Karnataka Professional Tax’ Step: – 3 Select the “Registered Employer” and entered the “RC No” of the Registered Employer Step: – 4 Select the periodicity Yearly/Monthly/On Dept. Demand. Step: –