Follow the below steps:
Step 1: Login to Browntape
Step 2: Go to Account
Step 3: Go to Tax Rules
Step 4: Click on ‘Create Rule’
Step 5: Set title & fill in the details(Price, Intra State, Inter State)
Step 6: Click on ‘Save’
NOTE: Taxes vary as per product category & price range. Ensure all the SKUs & product categories are added in Browntape while adding products.