Payroll Administrator, US Payroll Processing

Reporting to Corporate Headquarters in Toronto, Ontario, Canada

Department: Finance

Hybrid - 2-3X per week in the Toronto office.

Blue Moon Metals is seeking an experienced and detail-oriented Payroll
Administrator to join our growing team. This role is responsible for supporting the accurate and timely processing of US payroll, with secondary support for Canadian payroll, while applying strong knowledge of payroll rules, regulatory requirements, reconciliations, tax reporting, workers compensation, and payroll-related compliance obligations.

The Payroll Administrator will work closely with Human Resources, Finance, employees, external payroll providers, and other internal stakeholders to ensure payroll information is accurate, complete, and processed in accordance with company procedures and applicable federal, state, provincial, and local payroll requirements.

This is an ideal opportunity for someone who is highly comfortable with US payroll administration, Paychex, payroll controls, and evolving payroll practices in a growing, multi-jurisdictional organization.

• Coordinate and support regular US payroll processing, ensuring employee information, hours, earnings, deductions, taxable benefits, and other payroll inputs are accurate and submitted on time.
• Review payroll information for completeness and accuracy prior to processing, including validation of pay rules, overtime treatment, PTO and leave-related items, and full-time or part-time payroll classifications.
• Reconcile payroll data, deductions, taxes withheld, payroll-related balances, and other payroll outputs, identifying discrepancies and coordinating corrections as required.
• Support payroll tax reporting and required filings by ensuring data provided through Paychex and other payroll-related systems is accurate, complete, and reviewed in a timely manner.
• Support workers compensation payroll reporting, reconciliations, audit requirements, and related documentation across applicable US jurisdictions.
• Execute payroll-related onboarding, offboarding, employee status changes, compensation updates, banking information, and other payroll changes in an accurate and timely manner.
• Maintain accurate payroll records, documentation, and audit-ready support in accordance with company practices and applicable record-retention requirements.
• Stay current on payroll requirements across relevant US jurisdictions and proactively research or elevate emerging requirements related to payroll rules, filings, overtime, PTO, and other payroll compliance matters.

• Maintain payroll-related employee data and ensure payroll changes are accurately reflected between HR, payroll, and related systems.
• Support payroll setup for new hires, including required payroll documentation, jurisdictional requirements, tax setup, banking information, and other payroll-specific data.
• Execute payroll-related offboarding activities, including final pay information, required payroll documentation, and applicable compliance reporting.
• Promote data integrity between HRIS and payroll systems as the organization moves toward a more integrated HR and payroll environment.

• Serve as a point of contact for routine payroll questions and provide timely, professional support to employees, managers, Human Resources, and Finance.
• Research and help resolve payroll discrepancies or employee inquiries, escalating complex matters when appropriate.
• Communicate payroll deadlines, required documentation, and payroll-related information clearly and proactively.
• Handle employee and payroll information with a high degree of confidentiality, discretion, and professionalism.

• Support payroll administration in accordance with applicable US and Canadian payroll, tax, workers compensation, and reporting requirements.
• Assist with payroll reconciliations, including payroll data, deductions, tax with holdings, payroll-related balances, and other control accounts.
• Support payroll audits, workers compensation audits, and other state, federal, provincial, or internal payroll-related reviews.
• Assist with Canadian payroll reporting requirements, including ROE and T4/T4A preparation, as needed.
• Review US payroll provider outputs and reports to help ensure required payroll filings, tax reporting, and year-end documentation are accurate and complete.
• Identify opportunities to improve payroll processes,…