I have one product in my store that when sold it includes 15% GST but I don't have the shop set up to charge GST as I'm not registered.
It doesn't charge on any other products just this one, I have checked the setting and the tax boxes are unticked.
The GST amount isn't even correct anyway? I'm very confused.
Hyde here from Shopify.
While it's hard to fully diagnose the issue because I cannot access your account, there are essentially several instances when you might or might not need to charge GST:
When it comes to India we have several FAQs here that may help.
I hope that helps! Let me know if you have any other questions.
All the best, Hyde.