Where can I configure how Magento does round? I have the issue that it seems to alternate the rounding method.

I got an order with 3 lines, each having subtotal of 22.50, Discount is 25%. Now it does for the first line calculate a discount of 16.87, second 16.88, third 16.87. Correct would be 16.88 or 16.875.

I have magento-2.1.9 installed.

1 Answer 1


Basically it makes sure that rounding errors do not add up.

The System is called Delta Rounding, and there is an answer about this already here: Why does Magento store a rounding delta when calculating taxes

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