In NTS versions 5.30 and above, it is possible to excluded expenses from budget calculations based on which internal account is charged for the expense. One internal account can be selected for an expense account. Expenses charged to the expense account and internal account combination will be excluded from budget calculations. See Setup Expense Accounts for further instructions.
If you don't have NTS version 5.30 or above and are interested in upgrading your software, please see NTS Upgrade Offer for more information.