Verifying deduction structure
If you selected a deduction code or deduction class on Year End Parameters (PR27.1), you must have those deduction codes and deduction classes set up correctly. Also, you must assigned the deductions to the correct employees. If you did not set up deductions correctly, the incorrect data will print on your W-2 forms. Preparing year-end parameters
For complete information on creating a deduction structure, see the Payroll User Guide.