"Total Amount" cart rule without tax

[Chei20]

It seems that if I want to create a cart Price rule that takes account the subtotal of a subselection of products, that subtotal is calculated without taxes, also if in tax configuration everything is configurated as “including tax”.
I want to create a fixed amount discount for whole cart (10€) to all users that have in their cart 60€ of products from one category (123456)

Preconditions

1. Magento 2

Steps to reproduce

1. Go to Marketing -> Cart Price Rules

2. Create a Specific coupon like

3. (conditions) If “total amount” equals or greater than 59.99 for a subselection of items in cart matching ALL of this conditions
   Category is 123456 (category_id)

4. (actions) Fixed amount discount for whole cart
   Discount Amount 10

5. On FrontEnd go to that category 123456, and add products where the subtotal is above 60€ but the subtotal (without tax) is bellow 60€
   Summary
   Subtotal (without tax): €57,55
   Subtotal (with tax): €70,21
   Tax (22%): €12,66
   Total : €70,21

6. In that case the coupon can not be used because the subtotal (without tax) < €59.99
   My tax configuration is like

Expected result

1. I expected that if products price are configurated with including tax, The Total Amount should be calculated with tax, otherwise is difficult to explain to the customer that the coupon will only be used if the subtotal without tax is more than 60€

Actual result

1. The coupon will be used only if Subtotal without tax is greater than 60€

[magento-engcom-team]

@Chei20, thank you for your report.
We've created internal ticket(s) MAGETWO-84316 to track progress on the issue.