Property tax exclusions are available for qualifying elderly and disabled residents. You can complete the W4S with your estimated adjusted gross income and any income tax withheld to date to determine if withholdings are recommended.If you are a member of more than one, you must fill out a separate form for each retirement system account. Teachers' and State Employees' Retirement System. Log in to your ORBIT account each year to review and make any beneficiary and tax withholding changes you deem necessary. How do I apply for Child Support Services? You can complete the application at your local CSS office or apply online. To complete state tax withholding, select state tax. 5. Select the appropriate marital status and allowances. Request to withhold taxes.