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.

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