Zapier
No-Code 6,000+ AppsConnect payment gateways, Shopify, and CRMs to automate your GST invoicing
Popular GST Invoicing Zap Recipes
Top automations used by Indian e-commerce merchants, agencies, and SaaS founders
Razorpay Payment to GST Invoice
When a payment is captured on Razorpay, trigger an automatic tax invoice generation and email PDF to buyer.
Configure on Zapier ↗Shopify Order to B2B Invoice
Detect customer GSTIN on Shopify checkout notes, apply interstate IGST rules, and archive compliant tax invoices.
Configure on Zapier ↗HubSpot / Zoho CRM to Proforma
When a deal stage moves to 'Contract Signed', automatically create a proforma invoice requesting 50% milestone advance.
Configure on Zapier ↗How to Connect Zapier
Create no-code billing automations
-
1
Create a New Zap in Zapier Select your trigger app (e.g. Razorpay, Stripe, WooCommerce, or Calendly).
-
2
Add 'Webhooks by Zapier' Action Choose 'POST' action and enter your GST Maker webhook endpoint URL with JSON headers.
-
3
Map Customer Name & Payment Amount Map buyer details and order amounts from the trigger step into the invoice payload.
-
4
Test & Turn on the Zap Run a live test to verify that tax invoices generate automatically on every successful checkout.
Pro Tips for No-Code Tax Billing
Preventing calculation discrepancies
-
Use 'Formatter by Zapier' for State Codes Add a Formatter lookup table to map customer delivery states to their 2-digit GST state codes automatically.
-
Validate GSTIN Before Firing Add a filter step in Zapier ensuring customer GSTIN strings are exactly 15 characters before issuing B2B invoices.
-
Handle Payment Gateway Fees Separately Do not deduct 2% gateway processing fees from the invoice gross amount; bill the customer for the full purchase price.
-
Sync with Google Sheets Backup Ledger Add a parallel action in your Zap that appends every newly generated invoice row into a backup Google Sheet.
Need a self-hosted, unlimited-executions alternative?
Check out our guide for building workflows on n8n with GST Maker APIs.