Invoices & credit notes

GST Manager automatically generates compliant, professionally branded GST Tax Invoices for every paid order, and Credit Notes whenever an order is refunded.

Apps → GST Manager → Orders → Download GST Invoice

How GST is calculated

The app uses an always-tax-inclusive pricing model (MRP):

• Product prices already include tax. The app back-calculates the taxable value and GST component so the invoice total matches the exact amount charged.
• Intra-state sales (same state as your dispatch location) split evenly into CGST + SGST (e.g. 9% + 9% for an 18% item).
• Inter-state sales (different state) are charged as IGST (e.g. 18%).
• Each line item on the invoice displays its HSN/SAC code, taxable value, GST rate, and split tax amounts.

When invoices are generated

Order type	Workflow
Standard B2C / Retail	Tax Invoice is created immediately when the order is placed (orders/create)
B2B Company order	Issued as a Proforma invoice first; converted to a final Tax Invoice upon fulfillment or payment

Manual generation

If webhooks are delayed, click Generate now on any order detail page inside the app to create the invoice on demand.

PDF layout & customization

Configure your invoice template under Apps → GST Manager → Settings → Invoice Configuration:

• Logo & Signature — upload your brand logo and an authorized signatory image (PNG/JPG up to 200 KB).
• Party details — clean three-column layout showing Supplier, Bill To, and Ship To with full addresses, GSTINs, and state codes.
• Amount in words — automatically converted into standard Indian numbering format (Lakhs and Crores).
• MRP column — optionally display the original Compare-at price alongside the selling price.
• Custom disclaimer — add bank details, payment instructions, or legal terms in the footer.
• Date & currency formatting — pick your preferred format (e.g. DD-MM-YYYY, ₹ 1,234.50).

Invoice immutability (Pro plan)

To maintain a clean audit trail:

• When Lock invoice contents at issuance is enabled, the app captures an unchangeable snapshot of the customer name, address, and item prices at the exact moment the invoice is created.
• Subsequent changes made to the order in Shopify will not alter the original issued invoice.
• If a genuine correction is needed, click Regenerate on the order page to refresh the document details while keeping the original invoice number and date.

Partial shipments & credit notes

• Per-fulfillment invoices (Pro): If you fulfill orders in multiple shipments, you can enable separate tax invoices for each partial dispatch.
• Credit notes: When an order is refunded in Shopify, the app automatically generates a numbered Credit Note (e.g. CN-0001) reflecting the refunded amounts and reversed tax liability.

How to download invoices

1. From Shopify admin: Open any order in Apps → GST Manager → Orders and click Download.
2. From order list: Select multiple orders on the Orders page and click Print invoices to download a single ZIP archive.
3. By customers: Shoppers can click Download invoice directly from their customer account page on your store.
4. By email: Enable automated email delivery to send invoices as PDF attachments.

Related pages

• Capturing the GSTIN — collecting buyer tax IDs
• GST reports — filing monthly returns
• Customer downloads — self-serve invoice downloads
• Settings reference — full numbering and branding options