Payroll Contractor

• Process and audit multi-state payroll on a regular schedule (weekly/biweekly/semi-monthly), ensuring accuracy and on-time delivery
• Administer payroll in ADP (e.g., Workforce Now, Vantage, or similar ADP platform), including maintenance of employee records, earnings, deductions, and taxes
• Review timesheets/timekeeping data; validate approvals and resolve discrepancies
• Handle payroll adjustments: retro pay, bonuses, commissions, garnishments, terminations, and leave pay (FMLA/LOA)
• Ensure compliance with federal, state, and local wage/hour and tax regulations
• Reconcile payroll reports and general ledger entries; coordinate with Finance on journal entries and month-end close support
• Manage payroll tax activities: ADP tax filings support, notices resolution, W-2 administration, and year-end processes
• Serve as a go-to escalation point for payroll questions and issue resolution
• Support audits (internal/external), document controls, and maintain payroll SOPs
• Identify and implement process improvements, automation, and ADP best practices
• Partner with HR on onboarding/offboarding, benefits deductions, and employee data integrity

• 3–7+ years of progressive payroll experience; senior-level processing and troubleshooting
• Hands-on experience with ADP payroll systems (Workforce Now strongly preferred – including Workforce Manager Time Functions; other ADP platforms acceptable)
• Experience processing payroll for multi-state populations and handling complex pay scenarios
• Strong knowledge of payroll compliance: wage/hour, taxes, garnishments, and recordkeeping
• Comfort with reconciliations and payroll reporting (ADP reports, Excel, GL coordination)
• High proficiency in Excel (lookups, pivots, filters, basic formulas; advanced skills a plus)
• Strong customer service mindset with the ability to explain payroll topics clearly
• Discreet with confidential information; excellent attention to detail and time management

• ADP certifications or implementation experience
• Experience with timekeeping systems (ADP Time & Attendance, Kronos/UKG, etc.)
• Manufacturing/distribution payroll experience
• Experience with benefits deductions, HSA/FSA, 401(k) file coordination
• CPP (Certified Payroll Professional) or FPC

• Hybrid to Janesville, WI office or remote
• Typical business hours with occasional peak periods (payroll processing and year-end)

Founded in 1901, MRA is a nonprofit employer association that serves more than 4,000 employers, covering more than one million employees.

As one of the largest employer associations in the nation, MRA helps its member organizations thrive by offering the most comprehensive assortment of HR services, information, education, and resources to help build successful workplaces and a powerful workforce.

We partner with these companies working directly with their HR department and leadership to hire their talent. We are a direct line to the company, not an agency recruiter.