Tax showing up but not being added

I have no idea what's going on here. I've read and reread all the posts regarding tax issues and it appears I have all the correct settings and yet my tax still will not be included in the total. The sales tax (5%) correctly displays for "tax" but it's not added into the total. Can someone please tell me which settings to check so I can doublecheck yet again to make sure everything is correct? This is what displays upon checking out:

Sub-Total:$5.00

United States Postal Service (Priority Mail (2 - 3 days)):$5.50

WI TAX 5.0%:$0.24

Total:$10.50

(The total should be $10.74) I have my products set up as taxable goods. Any hints?

Thanks!

What version of Zen Cart are you using?
What contributions/addons do you have installed?

I'm using 1.3.5 and have no contributions added.

1. What are your store settings for these set to?
   Admin->Configuration->My Store
   a. Country/Zone
   b. Basis of Product Tax
   c. Basis of Shipping Tax
   d. Display Prices With Tax
   e. Display Prices With Tax-Admin

2. What Zone Definitions have you created?
   Admin->Locations/Taxes->Zones Definitions

3. Inside each of those zone definitions, what country/zone combinations have been selected?
   Admin->Locations/Taxes->Zones Definitions, click on "Details" button for each zone

4. What tax classes do you have?
   Admin->Locations/Taxes->Tax Classes

5. What tax rates have you created?
   Admin->Locations/Taxes->Tax Rates

6. What tax class have you associated with your products?
   Admin->Catalog->Categories/Products->click on a product to edit it

7. What tax class have you associated with each of your shipping modules?
   Admin->Modules->Shipping

This is what I have for each:

1. What are your store settings for these set to?
   Admin->Configuration->My Store
   a. Country/Zone -U.S. and Wisconsin
   b. Basis of Product Tax-Shipping
   c. Basis of Shipping Tax-Shipping
   d. Display Prices With Tax-true
   e. Display Prices With Tax-Admin-true

2. What Zone Definitions have you created?
   Admin->Locations/Taxes->Zones Definitions
   Wisconsin

3. Inside each of those zone definitions, what country/zone combinations have been selected?
   Admin->Locations/Taxes->Zones Definitions, click on "Details" button for each zone
   United States, Wisconsin

4. What tax classes do you have?
   Admin->Locations/Taxes->Tax Classes
   Taxable Goods/ID 1

5. What tax rates have you created?
   Admin->Locations/Taxes->Tax Rates
   Taxable Goods, Wisconsin 5% Priority 1

6. What tax class have you associated with your products?
   Admin->Catalog->Categories/Products->click on a product to edit it
   Taxable Goods (gross price is showing correctly)

7. What tax class have you associated with each of your shipping modules?
   Admin->Modules->Shipping
   USPS-none
   UPS-none (Could this be the problem????)

Thanks for your help!

Hmmm ... How can I reproduce this?

Please supply the ship-from ZIP for your store (Admin->Config->Shipping/Packaging)
Please supply the billing-address and shipping address for the test order you quoted earlier. I don't need names or street addresses ... really just need city+zip (for USPS anyway)
Also, what are the order-total details in Admin->Modules->Order Total ? including sort orders.

Please supply the ship-from ZIP for your store (Admin->Config->Shipping/Packaging)
54937

Please supply the billing-address and shipping address for the test order you quoted earlier. I don't need names or street addresses ... really just need city+zip (for USPS anyway)
Fond du Lac, WI 54935

Also, what are the order-total details in Admin->Modules->Order Total ? including sort orders.

1.Shipping=true, allow free shipping over $100, provide free shipping on orders made-national, sort order 200

2.Subtotal=true, sort order 100

3.Tax=true, sort order 300

4.Total=true, sort order 999

I was fooling with the discount coupons and gift certificates last night but I wasn't using them when testing this scenario. I know the GC part doesn't calculate correctly either, but I knew this was a known issue anyway. I really need to get the "regular" orders calculating first before I tackle that next problem.

"Display Prices With Tax" = true

That means that all the taxes on your product are already built-in. The tax amount showing is ONLY for an indication of how much tax is included in the prices on that order.

It's working as designed.

If you turn off the "Display prices with tax", then you'll find that the tax gets added after-the-fact, rather than being built-in to the price of the product.

I've set it to false and it now works! Should I also set the "display prices w/tax in admin" to false as well?

Thank you so much. I really appreciate your effort in solving this for me!

Yes ... normally both would be false.

In countries where you need to show all your prices as "tax in", you would normally set both of those to "true".

thanks again:)