VAT is calculated automatically on an invoice, once you perform several setup tasks. You must first set up VAT rates and VAT groups, and add tax groups to projects and services as necessary. You must also identify relevant activities as taxable.
Click Setup > VAT Rates and set all rates that you would like to use.
Click Setup > VAT Groups. Click Add, name the group, and select which tax rates to include in it.
Click Setup > Activities and tick the
Charge VAT
box under Tax Calculations.
Click Setup > Service Templates and select any tax groups that you want to associate with the template.
Click Setup > Project Templates. The
Tax Group
field defaults to
Service
, but you can choose a specific tax group in this field by selecting
Specified
and then selecting a tax group from the
Specified Tax Group
field.
Once these settings are in place, taxes will be calculated when you enter the billed amount on the Detail Billing screen for an invoice that includes taxable items.