GST calculation is not working - Australia

I have a shopify website in Australia. All receipts must show how much gst is paid. I have setup a market for australia and added tax details. I have ticked “tax included”. I then put an item into the shopping cart and it adds tax ontop of the sale price. I should be included but must show how much tax is included. What am i doing wrong?

Fixed. Need to turn on Dynamic Taxes under tax settings to make taxes included in price but still display at checkout.

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Here’s the most common reason Shopify is still tacking GST on top of your prices, and how to fix it:

  1. Enable “all prices include tax” at the global level
    Go to Settings → Taxes and duties.
    Under the Australia section, make sure “All prices include tax” is checked.
    This tells Shopify to treat every product price you enter as already GST-inclusive (so $110 is $100 + $10 GST, rather than $110 + $11).

  2. Verify each product is set to charge tax
    Open a product in Products → All products.
    Under Pricing, ensure “Charge taxes on this product” is ticked.
    If you’ve disabled tax on a product, Shopify won’t include GST in its price-breakdown.

  3. Confirm your Australia market is configured for inclusive pricing
    Go to Settings → Markets → Australia → Manage.
    Under Price adjustments & taxes, ensure “Tax included in prices” is turned on.
    You can leave the “Add tax on top” toggle off.

  4. Test with a fresh browser session
    After saving those settings, clear your cache or open an Incognito window.
    Add an item to cart—your displayed line-item price should remain the same, and the cart summary will now show something like “Includes $X GST”.


Why you saw tax added on top
If Shopify thinks your list prices are exclusive of GST, it will always add 10% at checkout. By enabling “All prices include tax” (both globally and per-market) and pricing your products accordingly, you switch Shopify into the inclusive-tax mode you need—while still listing exactly how much GST is embedded in every sale.

We tried this and worked, hope it helps:

taxes setup

market setup

variant setup