Bill.com Investor Presentation Deck

GAAP to Non-GAAP Reconciliation Operating Expenses Amounts in Millions GAAP Sales and Marketing Expenses (+) Stock-based compensation and related Payroll Taxes Non-GAAP Sales and Marketing Expense GAAP Research & Development Expense (+) Stock-based compensation and related Payroll Taxes Non-GAAP Research and Development Expense GAAP General & Administrative Expense (+) Stock-based compensation and related Payroll Taxes (+) Acquisition-related expenses Non-GAAP General and Administrative Expense Q1'23 Q2'23 Q3'23 Q4'23 FY¹23 Q1'24 $118.6 $164.7 $115.4 $117.2 $515.9 $118.4 (30.2) (69.8) (18.6) (13.8) (132.4) (14.1) $88.4 $94.9 $96.7 $103.4 $383.4 $104.3 $75.12 $78.9 $78.8 $81.8 $314.6 (21.357) (27.3) (23.3) (23.9) $53.8 $51.6 $55.5 $57.9 (95.9) $66.7 (20.9) 0.0 $45.8 $69.4 $71.7 (21.0) (21.3) (0.2) $48.2 $218.8 $73.5 $281.3 (18.9) (1.0) (0.3) $50.1 $53.5 $197.6 (82.2) (1.5) $89.1 (27.9) $61.2 $85.3 (21.4) (0.1) $63.9 29

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