Taxation is calculated by using tax rules that apply tax rates based on tax classes.
Tax classes
Categories or classifications that you can set against your products and organisations.Tax rates
A percentage amount of tax that you’d like to apply in a particular country, state, or zipcode range.Tax rules
A combination of both tax classes and rates that the system uses to calculate the appropriate tax charge amount.
In this guide, we’ll look at setting up a tax rule that applies a single state tax. We’ll use the example of Florida, where there’s a general 6% sales tax at the time of writing. Keep in mind this is just for guidance – consult tax guidance for your state or region before proceeding.
Create a tax rate
Head to System setup > Tax rates. Hit the green add tax rate button at the top.
Enter a name for your tax rate, choose the country and state where it applies, then enter the percentage. In our example, we’ve put the name as “Florida Sales Tax”, country as “United States”, state as “Florida”, and rate as 6.00.
When you’re done, click the blue Create Tax Rate button.
Create a tax rule
Once you’ve created a tax rate, go to System setup > Tax rules. Click the green Add a new tax rule button at the top.
Give your tax rate a name and tick all of the tax class boxes and the tax rule you just created. This tells the system to apply your tax rule to all products and organisations. We’ve named our example “Sales Tax”.
You can safely ignore the priority and sort order boxes – these are used in cases of multiple tax rates where you might need to compound rates.
When you’re done, click the blue Create Tax Rule button.
Apply to opportunities
Tax will automatically be applied to new opportunities where the address matches your tax rule.
The address used for tax calculation purposes is set in System Preferences. You can choose from:
Billing address
The organisation on the opportunity’s billing address.Delivery address
The venue or delivery address of the opportunity.Delivery origin
The address of the store is set against the opportunity.
The changes will not apply retroactively to existing opportunities. For example, if a tax rate changes in your region after a specific date, you would not want to alter past orders. To recalculate the tax on a particular opportunity, locate the opportunity and click on "Recalculate" under the Actions menu.

