Again, I am more used to Excel's "ROUNDUP" and "ROUNDDOWN", whereby the number refers to the number of decimal places it rounds to. Therefore, if you were to put 3 in this field, I am wondering if that will solve the problem.

On the other hand, 5% and 7.5% equals 12.5%. If the tax is supposed to be 12.875%, that means that it is COMPOUNDED as Net Price x 1.05 (GST) and THEN the product of that is multiplied by 1.075 (PST). This suggests different prioritizations, no? In MarieAndree's example, she has both priorities set to 1. The Admin panel states, "Tax rates at the same priority are added, others are compounded." Therefore, she needs to have GST set to Priority 1 and PST to Priority 2, no?

Sorry if I am off base, but new to this and trying to learn as I fix my own site and hopefully help others in the process.

Matthew