Verify GST Registration & Invoice Before Wholesale Purchase

Before you commit to a wholesale purchase, verifying the supplier’s GST registration and the invoice details protects you from fraud, ensures you can claim input tax credit, and keeps your records compliant. This guide walks you through the official GST portal checks and invoice validation steps. You’ll need the supplier’s GSTIN and a sample invoice to get started.

What You’ll Need

• Supplier’s GSTIN (15-character alphanumeric code)
• Supplier’s legal name as it appears on GST registration
• A sample or proforma invoice from the supplier
• Access to the official GST portal (gst.gov.in)
• Your own GSTIN (if you are registered)

Step-by-Step

1. Go to the GST portal’s “Search Taxpayer” feature. Open your browser and navigate to gst.gov.in. On the homepage, under the “Services” tab, select “Registration” and then “Search Taxpayer.” This is the official, free way to verify a GSTIN.
2. Enter the supplier’s GSTIN. Type the 15-character GSTIN exactly as provided. Double-check for typos—one wrong character will either return no result or show a different entity. Click “Search.”
3. Review the registration status. The portal will display the legal name, trade name, registration date, and registration status (Active, Cancelled, etc.). Ensure the status is “Active.” If it shows “Cancelled” or “Suspended,” do not proceed with the purchase.
4. Verify the legal name matches your records. The legal name on the GST portal must match the name on the supplier’s invoice and bank account. A mismatch is a red flag—it could mean the invoice is from a different entity or the registration is fake.
5. Check the principal place of business. Confirm that the address shown on the GST portal matches the address on the invoice and the shipping address. If they differ, ask the supplier for an explanation.
6. Examine the invoice header. On the sample invoice, verify that the supplier’s GSTIN is printed. It should match the one you looked up. Also check for the invoice number, date, and the supplier’s name and address.
7. Verify the invoice’s GSTIN format. A valid GSTIN has 15 characters: the first two are the state code, the next 10 are the PAN, the 13th is the entity code, the 14th is always ‘Z’, and the 15th is a checksum. If the format looks off, it’s likely invalid.
8. Check the HSN code and tax rates. The invoice should show the HSN code for each product and the applicable GST rate (5%, 12%, 18%, or 28%). Verify that the rates match the current GST slabs. Incorrect rates could lead to disputes later.
9. Confirm the invoice total and tax calculation. Add up the taxable value and the CGST, SGST, or IGST amounts. The total should equal the invoice amount. A simple mismatch could indicate a calculation error or a fraudulent invoice.
10. Cross-check with the GST portal’s “Invoice” feature (if available). Some states allow you to verify specific invoices via the GST portal, but this is not universal. If you have the invoice number and date, you can try the “Invoice Reference Number” (IRN) verification if the supplier uses e-invoicing. This is mandatory for businesses with turnover above a certain threshold.

Common Mistakes

• Ignoring the registration status. A supplier might have a valid GSTIN but a “Cancelled” status. Always check the status, not just the existence of the GSTIN.
• Relying on a GSTIN that is not active. Even if the GSTIN is active, the supplier might have defaulted on returns. The portal shows the “Return Filing Status”—if it’s “Not Filed,” the supplier may not be compliant.
• Not checking the HSN code. Wrong HSN codes can lead to incorrect tax rates and potential penalties. Always verify the HSN code on the invoice against the product.
• Overlooking the invoice number format. Invoices must have a unique sequential number. If the same number appears on two different invoices from the same supplier, it’s a problem.
• Assuming e-invoicing is optional. If the supplier is required to issue e-invoices (based on turnover), they must have a valid IRN. Without it, the invoice is not valid for input tax credit.

Tips

• Always use the official GST portal. There are third-party sites that offer GSTIN lookup, but they may not have real-time data. Use gst.gov.in for the most accurate information.
• Keep a screenshot of the verification. Save a copy of the GSTIN search result for your records. This can serve as proof of due diligence if there’s a dispute later.
• Verify before you pay. Do this check before making any payment, not after. Once you pay, it’s harder to recover money from a fraudulent supplier.
• Check the supplier’s return filing status. A supplier who regularly files GST returns is more likely to be legitimate. The portal shows the last few months’ filing status.
• Match the invoice to the delivery. When the goods arrive, verify that the items, quantities, and prices match the invoice. Any discrepancy should be reported immediately.

Troubleshooting

What if the GSTIN is not found? Double-check the number for typos. If it’s still not found, the GSTIN is likely fake. Do not proceed with the purchase.

What if the status is “Cancelled”? Ask the supplier for an explanation. If they cannot provide a valid reason, find another supplier. A cancelled GSTIN means they are not authorized to collect GST.

What if the legal name doesn’t match? This is a serious red flag. It could mean the invoice is from a different entity. Contact the supplier to clarify. If they are evasive, walk away.

What if the invoice doesn’t have a GSTIN? If the supplier is registered, they must show their GSTIN on the invoice. If it’s missing, the invoice is not valid for claiming input tax credit.

What if the GST rate is wrong? If the supplier charges a higher rate than applicable, you’ll pay more tax. If they charge a lower rate, you might not be able to claim the full credit. Ask for a corrected invoice.

What if the portal is down? The GST portal sometimes has maintenance windows. Try again after a few hours. If it’s urgent, you can call the GST helpdesk, but it’s better to wait for the portal to be back up.

Frequently Asked Questions

Q: Can I verify a GSTIN without logging in?
A: Yes, the “Search Taxpayer” feature on the GST portal is public and does not require you to log in.

Q: What is the difference between CGST, SGST, and IGST?
A: CGST and SGST are charged on intra-state sales (within the same state). IGST is charged on inter-state sales (between different states). The total tax rate is the same, but the split differs.

Q: Is e-invoicing mandatory for all businesses?
A: No, e-invoicing is mandatory only for businesses with turnover above a certain threshold (currently ₹5 crore for GST purposes). Check the latest rules on the GST portal.

Q: What is an HSN code?
A: HSN stands for Harmonized System of Nomenclature. It’s a standardized system for classifying goods. Each product has a specific HSN code, which determines the GST rate.

Q: Can I claim input tax credit if the supplier’s GSTIN is cancelled?
A: No, you cannot claim input tax credit on purchases from a supplier with a cancelled GSTIN. The invoice is not valid.

Q: What should I do if I suspect a fake GSTIN?
A: Report it to the GST helpdesk or the state tax authorities. You can also file a complaint on the GST portal.

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