GST Invoice in WooCommerce

What does a WooCommerce GST invoice have to show?

A customer-facing GST invoice is the tax bill for an Indian sale. It is not the short WooCommerce email that only says the order is complete.

The PDF needs your trade name and GSTIN, an invoice number and date, the buyer's name and state, and the place of supply. Each line needs the item, an HSN or SAC, the taxable value, and the tax. Inside your state the tax is CGST and SGST. A buyer in another state gets the same slab as one IGST line.

WooCommerce calculates tax only after you turn that setting on. The PDF layout comes from a GST invoice plugin. The shop still needs e-commerce hosting that can run WordPress and WooCommerce. WebJi® hosts the store. We are not the plugin maker, and we do not file your GST return.

How do you add GST to the invoice?

Do this in wp-admin before a real customer pays. Stop when two test PDFs show your GSTIN and only one kind of split.

1. Open WooCommerce, then Settings, then General. Set the store state to the state on your GST registration. Tick Enable tax rates and calculations. Click Save changes.
2. Open the Tax tab. Set Prices entered with tax to No, I will enter prices exclusive of tax. Set Calculate tax based on to Customer shipping address when you ship goods, or Customer billing address when that is your place of supply. Click Save changes.
3. Open Plugins, then Add New. Search for a GST invoice plugin. Click Install Now, then Activate. Open its GST or invoice settings, enter your GSTIN, and save. If those fields are missing, deactivate it and try another plugin that shows GSTIN, HSN, and CGST or IGST.
4. Edit each product. Enter the HSN for goods or the SAC for a service. Set the slab if the plugin asks. Click Update.
5. Place two test orders, one with an address in your state and one in another state. Open each order and download the invoice PDF.

You know it worked when the home-state PDF shows CGST and SGST, each half the slab, and the other PDF shows only IGST at the full slab. If both PDFs list every tax, a rate with a blank state is stacked on a state rate. Delete that extra row and run the two orders again.

Taking the payment is a different setup. Razorpay in WooCommerce does not choose CGST or IGST.

How do you update the GST number?

The GSTIN on a new invoice is the number saved in the invoice plugin. WooCommerce does not keep a shop GSTIN of its own.

• Shop GSTIN. Open the plugin GST or invoice settings, replace the number, and save. Invoices created after that save use the new number.
• Buyer GSTIN. Edit that order, or have the buyer check out again with the corrected field. Generate the PDF again.
• Old PDFs. A file you already downloaded keeps the old number. If you already sent it, send a revised PDF and keep the old file.

Open one new test order after you save. The GSTIN line on that PDF is the check. If it still shows the old number, you edited a product or an old order, not the shop setting.

Should you use WooCommerce tax settings or a GST plugin?

Tax settings do the calculation. A GST invoice plugin writes the Indian PDF and fills rate rows so you do not add every state by hand.

Stay on native rates only if you sell in one or two states and you already have a PDF tool. Add two rows for your state, CGST and SGST, with compound turned off so the second rate does not tax the first. Add a separate IGST row for each other state. Leave the state cell filled. A blank state matches every state and stacks tax.

Use a plugin when orders leave your state. The plugin price is the vendor's, not ours. WooCommerce hosting is the account the shop runs on. Email support@webji.services and we quote the account before you pay. The office number is not a support line.

When is the tax CGST and SGST, and when is it IGST?

The slab stays the same. The split changes. Same state: half the slab as CGST and half as SGST. Another state: the whole slab as IGST. In a Union Territory, UTGST replaces SGST. The plugin compares your shop state with the state on the order.

At 18 percent, a buyer in your state should see 9 percent CGST and 9 percent SGST. A buyer in a different state should see 18 percent IGST and no CGST line. At 5 percent the halves are 2.5 and 2.5. Reduced goods need their own tax class, or the plugin's per-product slab, or they pick up the standard rate.

How do you know the invoice is right?

Read both test PDFs before you send one to a customer.

• Home-state order: CGST and SGST, and no IGST line.
• Other-state order: IGST only, at the full slab.
• Both PDFs: your current GSTIN, plus an HSN or SAC on the line.
• Taxable value plus tax equals what the customer paid.

A wrong rate usually means the product is in the wrong tax class. Standard rates are the default class. Put a reduced slab in its own class and its own rows, then repeat the two test orders.

If your CA says e-invoicing applies, the government IRP document is a separate file. This PDF does not replace it. The monthly return is also separate: export the orders for your CA. This setup stops at the invoice the customer receives.