Tax Calculation Error

if you order one “jamón serrano 7.5-8kg” and “entero” that costs 61€, the reduced tax that is 10%, takes the value of 5,55€ instead of 6,1€…

I think there is confusion here about how are taxes calculated, and what settings to configure.

I’m assuming that you have selected to enter prices inclusive of tax, and configured a tax rate of 10%. For those settings, if you entered the price inclusive of tax as 61.00, 5.55 would indeed correspond to a 10% tax of the price exclusive of tax.

55.55 * .10 = 5.55
55.55 + 5.55 = 61.00

In the above example, 55.55 is the price exclusive of tax, and the 10% of that is 5.55. When added together, the total is 61.00

If you want tax to be 6.10 on top of the price of 61.00, then in the tax settings you’ll have to select the option to enter prices exclusive of tax. With that setting you would charge customers 61.00 for the product, plus 6.10 tax, for a total of 67.10.

I hope this makes sense. Let me know if you have any questions!