The position processes and reconciles vendor invoices, statements, departmental requests and expense reports for an assigned vendor range, applies IRS GAAP, federal-award, and agency disbursement requirements at the point of entry, resolves vendor account discrepancies directly with vendors and departments, and controls the documentation that proves each disbursement was proper. Maintain vendor accounts and documentation, including identifying credits or overpayments, managing aging reports, monitoring past‑due items, and ensuring invoices follow proper approval routing and workflow.