Billing Tables can be used to set specific charge out rates which can then be assigned to a project to assist with Fee Calculation as well as with Time Based Fee Invoicing. 

1. To create a Billing Table go to Settings > Billing Table > + New Billing Table

2. If you are using a multi-currency account you will then select the currency applicable to this billing table:

3. Rates van be set based on the job category: 

4. Or customised for each employee:

5. Additionally each billing table can also have custom expense types setting for how expenses are marked up for clients.