• Supports the Controller in overseeing day-to-day accounting operations • Own assigned month-end close activities in accordance with the close calendar • Maintain an accurate open-items list throughout close • Drive quality and self-review to minimize rework • Partner with FP&A and Finance leadership to support recurring reporting needs • Coordinate cross-functional close dependencies • Support external audit and review requests • Use and maintain close management tools • Lead a predictable weekly/bi-weekly payment cycle • Ensure an audit-ready approval trail for payments • Monitor aging and stalled items to prevent late payments • Respond to internal and external inquiries with timely acknowledgement • Support design and execution of internal controls over financial reporting • Perform control-related reviews and reconciliations

• Provide leadership and oversight for core TxO month-end close activities, including journal entry governance, balance sheet reconciliations, and account substantiation. • Ensure consistent application of accounting policies and procedures across TxO. • Establish and maintain standardized close calendars, checklists, and documentation standards to support timely close and audit readiness. • Serve as an escalation point for complex TxO accounting matters, balance sheet discrepancies, and unusual or non‑routine transactions. • Lead, mentor, and develop a team of TxO accounting managers and accounting professionals. • Establish clear performance expectations and provide ongoing coaching and feedback. • Build organizational capability through training, knowledge sharing, and succession planning. • Foster a culture of accountability, collaboration, and continuous improvement across geographically dispersed teams. • Design, implement, and maintain effective internal controls in alignment with SOX requirements and McKesson control standards. • Partner with Internal Audit and External Audit to support walkthroughs, testing, issue remediation, and audit requests. • Ensure TxO accounting processes are well‑documented, consistently executed, and supported by appropriate evidentiary documentation. • Proactively identify control gaps, operational risks, and opportunities to strengthen the control environment. • Support data integrity, system tie‑outs, and resolution of system‑related accounting issues. • Serve as a primary liaison between Practice Management Accounting, TxO Finance, TxO FP&A, and other key functions within TxO. • Partner closely with various McKesson and USON accounting shared services organizations to drive efficiency, quality, and compliance. • Communicate accounting risks, trends, and key insights to senior finance leadership. • Support enterprise initiatives impacting TxO accounting, governance, or financial reporting quality. • Act as a key business leader for accounting systems and process enablement initiatives, partnering closely with Finance Systems. • Identify and resolve complex TxO accounting and operational issues impacting balance sheet integrity and close performance. • Provide leadership judgment on non‑standard transactions and emerging accounting issues, ensuring alignment with U.S. GAAP and McKesson policy.

• Own monthly, quarterly, and annual close processes • Build and maintain a scalable ≤10-day close cadence • Ensure integrity of the general ledger and financial reporting • Prepare internal financial statements and reporting packages • Own ongoing execution of revenue recognition in an insurance-based environment • Build and maintain a monthly revenue bridge: Billing activity → Net Revenue → Cash → AR • Ensure RCM outputs reconcile to the GL each month • Own AR accounting, aging, and reserve methodology • Design scalable accounting processes and SOPs • Establish internal controls and ensure GAAP compliance • Identify and remediate gaps in accounting workflows • Support audit readiness and future diligence processes • Oversee payroll accounting, accurately reconciling bi-weekly pay periods and invoicing with monthly reporting • Partner closely with Revenue Cycle Management (RCM), Finance Operations, and Executive leadership • Improve alignment between operational reporting and financial reporting • Help create visibility into revenue quality, collections, and AR performance

• Own the month-end close across all entities, with a target of business day 10 • Run payroll across Canadian and US entities, including all remittances, year-end filings, and platform administration (Deel and equivalent) • Manage intercompany transactions and reconciliations across CAD and USD • Prepare monthly consolidated financial statements for the CFO and ownership • Lead a small team of bookkeepers, AR/AP specialists, and payroll administration • Manage GST/QST/HST, US sales tax, SR&ED, and corporate tax compliance alongside external accountants • Build a finance operations playbook in Notion that the team can run on • Support M&A and integration work as we scale