1. First, make sure the tax rate or jurisdiction is created. Tax rates and jurisdictions can be added through Pricing > Tax Rates. Just enter the name of the tax rate/jurisdiction and the amount. Click Save and now it's in your list of tax rates.
 

 
2. Now change the tax rate on the transaction. Click Workbench and search for the transaction in question and click the contract number or the dates in the center of the Workbench list to open the transaction.  Expand the Totals section at the bottom right of the transaction. Click the Tax Rate % amount and choose the appropriate tax rate from your tax rate list.

 
3. Once you have chosen the appropriate tax rate, click Save and the new tax rate is now on the transaction.



Related articles

Tax Rates
Tax Configurations