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FAQ
Quick answers to the questions merchants ask most about GST Manager for Shopify.
Does this replace Shopify's built-in tax?
Yes — for GST. GST Manager computes the CGST/SGST/IGST split and issues the tax invoice, so Shopify should charge 0% tax. Prices are treated as GST-inclusive and the tax is back-solved out of them, so the invoice total always equals what the customer paid. See Configure Shopify taxes.
How does it decide CGST/SGST vs IGST?
By comparing your registered state (from your GSTIN) with the order's place of supply: same state → CGST + SGST (half each); different state → IGST.
Where do product GST rates come from?
From a per-product HSN/SAC + GST rate you set under Products → Import HSN codes or the per-product HSN block. If a product has no rate, GST Manager uses your Default GST rate (typically 18%). A slab rule is available for clothing/footwear.
How do customers give their GSTIN?
Through the cart-page "Get GST Invoice" block (a Theme App Embed), from Shopify's native B2B Company tax ID, from their customer record, or by admin override. You control cart capture under Settings → Other Settings.
When is the tax invoice issued?
Immediately for regular orders. B2B Company orders get a Proforma first, and their Tax Invoice is issued when the order is fulfilled or paid — whichever happens first — matching the legal time-of-supply trigger.
Can I edit an order after the invoice is issued?
The invoice can freeze a party snapshot at issuance (Pro's "Lock invoice contents"), so later edits in Shopify don't drift into an already-issued document. The deliberate correction path is the order's Regenerate action, which refreshes the buyer block while keeping the same invoice number and date.
What GST reports can I export?
GSTR-1 (Full / B2B / B2C), GSTR-3B summary, offline-tool CSVs (B2B, B2C small, B2CSA amendments), an HSN-wise B2B summary, and a GSTN-portal JSON. Reports run in the background with a History tab for re-downloads. Reports need the Starter plan or higher. See Reports.
What is "Protected Customer Data" and do I have to do anything?
It's Shopify's platform rule for apps that read order/customer data. You approve it once in your Partner Dashboard so order webhooks are delivered. Until then, use Generate now on each order. See Data & privacy.
How much does it cost?
There's a Free plan (up to 50 orders/month) and paid Starter / Pro / Scale plans, each with a 7-day free trial. Billing runs through Shopify and appears on your Shopify invoice. See Billing.
Do I lose my invoices if I uninstall?
The GST data written to your orders/products stays on your store as metafields. Download offline copies (Reports → Bulk download) before uninstalling if you want them outside Shopify. See Uninstalling.
Is my data safe?
GST Manager reads only the data needed to produce invoices, over HTTPS, and implements Shopify's mandatory data-deletion webhooks. See Data & privacy.