Getting wrong tax details in tax_lines in order json

Hi @Anubhav_Kaushik,

For help looking at the details of specific orders, I’d recommend reaching out to our Shopify Support Team directly via the Help Center, while logged into the Partner or Merchant Account that has access to the store in question, so we can help look into it further in a fully authenticated support interaction.

If you are retrieving this information via an API call, please be sure to have all of the following details of the API call prepared in advance to ensure efficient troubleshooting by our support team.

  • The full plain text HTTP Request, including URL, Body, and Headers (no access tokens)
  • The full plain text HTTP Response, including Body and Headers

Hi @Kellan-Shopify,

We are observing an issue across all orders that have 2 or more GST tax rates and 2 or more line items, where two IGST tax rates (5% and 18%) are being applied simultaneously at both:

  • Order level (tax_lines)

  • Line item level (line_items[].tax_lines)

Each line item is receiving both tax rates cumulatively, resulting in an effective tax of ~23% per item instead of a single applicable GST slab.

Reference from one order:

You can refer to the order JSON above or the screenshot attached by @anubhav for detailed reference.

This pattern is consistent across such orders and is causing incorrect tax calculations on our end, especially for refunds, as taxes are not clearly distributed per item based on tax category.

Thanks!

We’re observing this behavior only in this specific store (08c581-55.myshopify.com). In other stores with similar configurations, taxes are applied correctly (one GST per line item).

At the moment, we haven’t identified the exact root cause for why multiple tax rates are getting applied to the same line items in this store.

For reference, you can review the order JSON shared above, where multiple IGST rates (5% and 18%) are being applied on each line item.

We’re currently investigating the store’s tax configuration (product-level tax settings, overrides, or any conflicting tax rules) to identify what’s causing multiple tax rules to be applied simultaneously.

Hi @vipulgokwik,

I’m afraid that we’re unable to look into details in a specific store unless we are in a fully authenticated support interaction.

Since this behaviour is only happening on one store in particular, again I do recommend reaching out via the Shopify Help Center, so we can authenticate you on the store correctly and help look into the details of this behaviour on that store further.