GST Billing Guide

How to Get a GST Invoice
Using Your GSTIN

If your business is GST-registered, you are entitled to receive a fully compliant B2B tax invoice complete with CGST, SGST or IGST breakup and Input Tax Credit (ITC) eligibility. Follow the two quick steps below before you complete your checkout. The entire process takes under a minute.


  1. Locate the side cart & find the GSTIN field.

    On the Cart page before proceeding to checkout

    Navigate to the Cart page, locate the "Have a GSTIN?" text area. Type your 15-character GSTIN exactly as it appears on your GST registration certificate no spaces, no hyphens, no punctuation. This ensures that the GST tax invoice is generated against the correct taxpayer record and that the ITC details reflect accurately in your GSTR-2B reconciliation.

    • Copy directly from your GST registration certificate to avoid typographical errors

    Verify your GSTIN instantly on the official GST portal. An invalid, suspended, or cancelled GSTIN will result in a standard B2C invoice being issued, which is not eligible for ITC claims.


  2. Use your GST-registered business address at checkout

    The state in your address must match your GSTIN's state code

    In the Side Cart page, enter the shipping or billing address that is registered with your GSTIN. The state you select must match the first two digits of your GSTIN exactly. For example, if your GSTIN begins with 33 (Coimbatore), your checkout address must also be in Coimbatore. A state mismatch is the leading cause of GST invoice rejection and GSTR-1 reconciliation errors for buyers.

    • Select the exact state that matches your GSTIN state code prefix
    • Enter your registered business name, not a personal name
    • Ensure your PIN code is within the correct registered state.

    Invoice amendment window: GST invoices cannot be revised after the billing cycle closes under the GST Act, 2017. If you notice any error in your GSTIN or address details, please contact our support team within 24 hours of placing your order for assistance before the invoice is finalized. Contact: +91 90729 50999

About GST Invoicing for Online Business Purchases in India

The Goods and Services Tax (GST) framework in India mandates that registered businesses issue a compliant tax invoice for every B2B transaction. When you purchase goods online using your GSTIN, the invoice serves as a critical document for your Input Tax Credit (ITC) reconciliation under GSTR-2B and for accurate GSTR-3B filings. Without a valid GST invoice linked to your GSTIN, your business cannot claim the tax paid as a credit against your output liability.

For intra-state transactions (where seller and buyer are in the same state), the invoice will reflect CGST (Central GST) and SGST (State GST), each charged at half the applicable rate. For inter-state transactions, a single IGST (Integrated GST) charge at the full rate applies. Our system automatically determines the correct tax type based on the state in your checkout address and the seller's place of supply.

Whether you are a sole proprietor, a private limited company, an LLP, or a partnership firm, the process for obtaining a GST invoice remains the same enter your GSTIN before checkout and use your registered address. If you represent a composition dealer, note that ITC rules differ and you should consult your tax professional before making purchases intended for ITC claims.

Ready to place your order with GST billing?

Questions? Contact our support team we respond within 2 business hours.