I posted this in Currencies & Sales Taxes, VAT, GST, etc but thought maybe
this was the more appropriate place.

The Tax Exempt Mod doesn't seem to calculate the tax charged for shipping.

Sub-Total:$5.00
Flat Rate (Best Way):$5.00
WA TAX 8.9%:$0.88
Tax Exempt:-$0.45
Total:$10.43

It seems that the Include Shipping, Include Tax and Re-calculate Tax options
of this mod are not currently functioning. I have tried this with a few
installations, all with the same result.

The Include Shipping, Include Tax and Re-calculate Tax options for Group
Pricing
all work perfectly, assuming that Tax Exemption Status should have
the same functionality as Group Pricing I think this might be a bug.

Would someone be willing to test and see if they have the same experience. I
have version 2.1 of Tax Exempt Status and Zen Cart 1.3.7.

Thanks to anyone willing to look into this the Zen Cart Community rocks!