Payroll Tax Case Administrator

OSV

9d•Remote

About The Position

OneSource Virtual (OSV) has worked exclusively with Workday customers since 2008 to deliver compliant, in-tenant technology and expert services to automate the administrative, transactional tasks of payroll, taxes, earned wage access, accounts payable, and benefits. With over 1,500 customers, 92% retention, and $225+ billion in treasury movement annually, OSV helps organizations maximize their Workday investment and operate it with confidence. Payroll, benefits, and finance solutions — all in one place. The Payroll Tax Case Administrator is responsible for managing end-to-end Power of Attorney (POA) and Third-Party Authorization (TPA) activities across assigned tax jurisdictions. This role ensures timely and accurate processing of authorization requests, maintains compliance with jurisdictional requirements, and coordinates with internal teams, agencies, and customers as needed. In addition, the specialist provides case-handling support during high-volume periods to help maintain service levels, reduce aged inventory, and ensure timely resolution of tax-related cases.

Requirements

High School diploma
1 year of tax experience
Strong analytical and research skills
Experience in Microsoft Word and Proficiency in Excel
Willingness to work split shifts, evenings, weekends and holidays

Nice To Haves

Bachelor’s degree preferred
Knowledge of payroll taxes a plus
Experience with Zendesk and / or Salesforce programs preferred

Responsibilities

Manage the end-to-end POA and TPA process, including reviewing requests, preparing forms, obtaining required signatures, submitting authorizations, and tracking status through completion.
Review jurisdictional requirements and ensure POA and TPA documents are accurate, complete, and compliant with applicable agency guidelines.
Coordinate with tax agencies, customers, and internal teams to resolve missing information, rejected forms, and authorization-related issues.
Monitor pending, rejected, and outstanding POA/TPA requests and follow up to ensure timely resolution.
Maintain accurate records, trackers, and documentation of authorization activities and case status.
Identify jurisdictions that do not require a TPA or have specific authorization requirements and ensure the appropriate process is followed.
Support the creation and maintenance of SOPs, work instructions, and reference materials for POA and TPA processes.
Provide guidance and clarification to team members regarding POA/TPA requirements and procedures.
Escalate complex or unresolved authorization issues to leadership or the appropriate internal team.
Assist with tax case handling during periods of high volume, staffing shortages, or increased aged inventory.
Review, research, and process assigned tax cases in accordance with established procedures and service-level expectations.
Support the team in reducing aged cases and maintaining queue health during peak periods.
Collaborate with Case Administrators and other Tax Operations teams to resolve issues and ensure cases move forward timely.
Prioritize work based on urgency, age, jurisdiction, and business impact.
Maintain quality and accuracy while balancing POA/TPA responsibilities with case-handling support.