A deduction is an amount withheld from a paycheck that lowers taxable income. Building and saving deductions (link to how to create a deduction and a deduction set) will prevent you from having to enter deductions every time you want to calculate a paycheck.
Once you’ve built more than one deduction, you can add them to a deduction set. Deduction sets allow you to group deductions together, so that they all appear in the calculator, saving you time during your calculations.
For instructions on how to create deductions and deduction sets, visit this article.