Incorrect tax calculation in Google Chrome

[lasseporsch]

We are currently testing WCPos on our staging environment. We would like to use it in production in the coming months but currently it doesn't calculate VAT correctly.

Our setup is:

• Wordpress 6.3.1
• WooCommerce 8.2.0 (but this issue also exists on WC 8.1.1)
• WCPos 1.3.12

Our Woocommerce online shop is set up to include tax in all prices we enter:

For online orders this works as expected, e.g. we have a product with a price of 15.00 Euros, and WooCommerce correctly calculates the VAT on checkout as 0.98 Cents, included in the 15 Euros:

When I sell the same product in WCPos, however, the VAT is added on top of the products price:

The resulting WooCommerce Order will also have the incorrectly added VAT:

I tried to change the tax settings in the POS user menu, but nothing I changed there seemed to have any effect:

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While the current behavior is definitely not working correctly, I did give the plugin a quick test a couple of months back, and I am pretty sure the tax calculation was correct back then.

[lasseporsch]

EDIT: This seems to be browser-related?!?

I didn't mention it before because I thought it was irrelevant, but the screenshots in the OP were made in Google Chrome. However, if I call up the POS in Safari (macOS), I get the correct tax calculation: