Coordinate and review quarterly and annual U.S. GAAP/IFRS tax provision deliverables prepared by external tax advisors, including current and deferred tax, effective tax rate, uncertain tax positions, and provision-to-return true-up analysis; review key assumptions, supporting schedules, and significant tax positions and coordinate follow-up questions and adjustments with external advisors and internal finance stakeholders. Coordinate with external tax advisors and review corporate income tax compliance deliverables, including federal and state income tax returns and workpapers, estimated tax payments, apportionment, book-to-tax adjustments, tax depreciation, and related account reconciliations; ensure completeness, consistency with company financial records, and timely resolution of review comments and tax issues.