For some contracts, you may wish to keep a set of saved tax codes throughout the contract life cycle. You can select the Copy Contract Item Tax toggle to enable the setting where the saved tax codes on the contract item level will be copied to the application for payment and then to the invoice.
Note: When a new contract is created, the latest tax codes and percentages are set to be refreshed and updated on the contract automatically. The saved tax codes, percentages and amounts in the contract item level will be refreshed based on the latest tax basic data. You can stop this refresh setting as required. The tax codes are refreshed at the four stages give below: