To Hide/Show the HSN/ SAC in the Invoice, please follow below mentioned steps.
Step 1: Open Swipe Billing Application, Click on Document Settings.
Step 2: Scroll down to Additional Customizations and Enable/Disable the toggle button for Hide/Show HSN/SAC.
Step 3: Click on Update Document Setting
Note: HSN/ SAC code will be hidden in the invoice pdfs if this is enabled.