[cflsystems]

I have to say the tax setup in XC4 can cover sales tax in US for about 90% - there is way more flexibility in XC4 tax setup including the formula field.
XC5 tax setup is very generic in its current stage. I covered this in another thread - your store cannot charge me 8% sales tax when for my location tax is 7.5%, this just screams at me - leave immediately and buy somewhere else...

When US makes it mandatory to charge sales tax on all online purchases regardless of location and report to all the few thousand authorities Avalara will be the natural choice.
I have to say even now Avalara will work as great "onsite" replacement for NY, WA, Tx states... but it is overdoing it for states like, TN, FL, CA etc...
Of course there is the company size factor as well but just saying...
I would really like to see the XC4 tax flexibility in XC5. After all you should make XC5 same or better not cut off functionality right