Why can't I activate the tax feature on my new online store?

[mdsarch]

I just started my store and have over $20k in sales.  I have register with my state to collect sales tax, but when I go to configure Shopify Tax - I can't activate it.  The button is greyed out.  What am I missing?

Thanks

[KP_Enterprises]

I'd suggest contacting support. Getting a response from Shopify in here is hit and miss. When you say that you go to configure tax, are you in settings where you can turn it on by state?