I have been having this problem when QuickBooks enacted their automatic sales tax calculations. Every month the tax QuickBooks says I owe is off. I am not sure how they do their calculation.

Example:

Gross sales: $25327.95; Taxable sales: $13670.21; Sales Tax: 7.6458%

According to the math I would owe $1045.20 (1045.196916).

According to QuickBooks I owe $1044.47.

This really does not make me feel good about QuickBooks calculating anything if this simple calculation is off. I have spoken to support about this and they can not give me a reason. Only that I might try an override tax. That does work. But if my override and the automatic tax is the same, why do I get different amounts?