Well I was doing some research and apparently Google can handle the taxes for a particular jurisdiction - but only if a particular tag is not sent to it in the transaction communication. Google provides this info:
Checkout shopping cart: How do I set tax rates in the Google Checkout Merchant Center?
To set tax rates in the Google Checkout Merchant Center:
Sign in to Google Checkout.
Click the Settings tab.
Click Tax setup.
Select a state (U.S. only) from the drop-down menu and enter the appropriate tax rate.
Select items only or items and shipping from the 'Apply to' drop-down menu.
Click Add to save your changes.
Repeat these steps for each state and tax rate you'd like to specify.
The tax rates you specify will be applied automatically when the buyer completes the checkout process.
Note: If you submit a shopping cart which includes the tag <tax-tables>, we'll ignore any tax values set in the Merchant Center.
So - how do we get the store to NOT send the tag <tax-tables> - to allow Google to handle taxes???
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