Administer federal, state, and local payroll tax withholding, reporting, filings, and payments, ensuring compliance with all applicable tax laws and regulations.•Prepare, review, reconcile, and file quarterly and annual payroll tax returns and related tax reports.•Coordinate year-end payroll tax activities, including Forms W-2, W-2c, and other required tax reporting.•Maintain payroll tax accounts, registrations, jurisdictional setups, and related system configurations.•Monitor, research, and respond to payroll tax notices, agency correspondence, audits, and government inquiries.•Research and resolve payroll tax issues, discrepancies, amended filings, and employee tax-related questions.•Analyze and apply appropriate tax treatment for payroll transactions, including supplemental wages, relocation benefits, fringe benefits, and multi-state taxation matters.•Support payroll processing activities by reviewing payroll calculations, earnings, deductions, tax withholdings, adjustments, reversals, and off-cycle payments.•Perform payroll tax account reconciliations and validate the accuracy and completeness of payroll tax data and reporting.•Collaborate with Human Resources, Benefits, Compensation, Finance, and other stakeholders to ensure accurate payroll and tax administration.•Maintain payroll records, documentation, and procedures in accordance with company policies and regulatory requirements.•Identify trends, risks, and opportunities for process improvement; develop metrics and management reporting to support decision-making.•Recommend, document, and implement payroll tax process improvements, automation initiatives, system upgrades, testing activities, and compliance-related projects. This role serves as the subject matter expert for federal, state, and local payroll taxes, supports payroll processing activities, researches and resolves tax issues, and ensures compliance with applicable tax regulations.