ToolboxCommonly Used Forms & LinksForms W-9 Inventory Sheet Datasheet New Employee FormsThe following forms must be completed and returned before paychecks are issued: Fed W-4 I-9 MO W-4 KS W-4 Affordable Care Act Links IRS MO DOR KS DOR Social Security Administration RMD Calculator Department of Labor Federal Withholding Calculator MO Withholding Calculator Guides Record Retention Guide Start a new business Checklist Individual Itemized Deductions Retirement Guide