Quote Originally Posted by nholovacs View Post
First of all, I wish to thank everybody who has posted here and other places in the Zen Cart support threads. Most of my issues were resolved simply by reading the threads and solutions to common problems. I now believe I have a not-so-common issue.

Basically, it seems that Gross sales and tax are incorrect when a coupon is involved. I picked a day I only did a single sale and a coupon was used. in the report it looks like this:
http://www.vacstechservices.com/issue/report.png

But the invoice looks like this:
http://www.vacstechservices.com/issue/invoice.png

You may notice that the product sales total in the report ($109.98) does not actually equal the product sales (subtotal - coupons & discounts [$98.98]). My logic is that total product sales should be total price associated with product sales, not gross price _before_ discount. I'm not sure if this is a bug or the intended behavior of the mod but when reporting to state governments for sales tax they only care about your actual product sales, not what you would have sold had the coupon been omitted so this is why I think it is a bug.

The more important thing is the tax calculation which I think is an obvious bug. When a coupon is used, the report shows a higher tax burden then what is actually collected. For example, the report shows the tax burden on this sale to be $8.80, when in fact the tax collected on the invoice is $7.92. When I do the math I can determine that subtotal [$109.98] - coupon [$11.00] * tax percentage [$0.08] = $7.92, so the invoice is accurate. Essentially, the tax collected field is certainly wrong.

As it turns out, I have been reporting a higher income and paying a higher tax burden for no reason... As I don't see anyone else with this issue (I have been searching for quite some time, so I am very sorry if I missed something) I think maybe I have configured something incorrectly... Perhaps someone can shed some light into my Dilemma and help me resolve this?

I appreciate anything that will help!
Hello! I'm having the same issue. Has there been a resolution to this?

Mark