This article will walk you through created new sales taxes in Cloud Retailer.
1) Log in to your Cloud Retailer back off
2)Navigate to the Admin tab/icon located second from the bottom listed to the left
3) In the search bar of the Admin tab type in tax
4) Select Sales tax jurisdictions
6) Select Create New Sales Tax and fill in the applicable information
7) From the dropdown select on the newly created sales tax jurisdiction and hit save in the top right
Related page - Changing Product Tax