Define, track, and report on AP performance KPIs (e.g., invoice processing time, touchless/straight-through processing rate, on-time payment rate, exception rate, days payable outstanding) and other ad hoc financial and operational reporting, using performance data and analytics to drive accountability, measure impact, and guide continuous improvement and investment decisions. Own AP tax and regulatory compliance, including 1099 and 1042-S information reporting and backup withholding requirements across domestic and global vendors, partnering with Vendor Maintenance on W-9/W-8BEN collection and validation; monitor and stay current on regulatory changes affecting AP compliance and update processes accordingly.