Bill.com Investor Presentation Deck

Why we win Platform • Purpose-built financial operations platform . Proprietary money movement rails & infrastructure • Proprietary risk. management and compliance Ecosystem • Efficient go-to-market: self-serve, direct to SMBs, strategic partnerships with accounting firms and financial institutions • Proprietary network for customers and suppliers Scale 470,000+ SMBs 5.8 million network members¹ • $280+ billion annualized run rate total payment volume² Large and growing data asset ¹ As of June 30, 2023. Approximately 5.8 million network members have paid or received funds electronically using our platform. We define network members as our BILL standalone customers plus their suppliers and clients. 2 As of September 30, 2023. The total payment volume transacted by BILL customers was approximately $65.8 billion; the total card payment volume transacted by spending businesses that used BILL Divvy cards was approximately $4.0 billion; the total payment volume transacted by Invoice2go subscribers was approximately $0.3 billion. An annualized rate was calculated by multiplying the most recent quarter by four. 13

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