You can enter your store's GSTIN inside GST Pro → Settings → Taxes. This is a one-time setup step required to ensure GST is calculated and displayed correctly on invoices.
Your Shopify staff account must have Manage Apps and Settings access permissions
Without these permissions, changes may not save
Ensure your store address is updated under GST Pro → Settings → General
The store address determines CGST + SGST (intra-state) vs IGST (inter-state)
Follow these steps inside your Shopify admin
Access GST Pro from your Shopify admin panel.
Find the tax configuration section.
Format requirements:
Example structure:
Confirm your GSTIN is saved correctly.
Avoid these common errors when adding your GSTIN
Do not enter GSTIN in VAT number or Registered number fields.
Always use the dedicated Store GSTIN field in GST Pro → Settings → Taxes.
GSTIN must be entered in uppercase.
Changes are not applied until you click Save.
GST Pro does not automatically pull GSTIN from Shopify billing details.
It must be entered manually once.
GSTIN configuration options vary by plan
Suitable for stores operating from one state.
Required if your business operates from multiple states.
After saving, open any order in GST Pro
Generate an invoice for the order
Confirm the GSTIN appears correctly on the invoice header
Verify the correct tax split (CGST/SGST or IGST) based on customer location
Our support team can help verify your GSTIN configuration and ensure proper tax calculations.