Bill.com Investor Presentation Deck

Supplemental Information. Number (rounded to the nearest 100) BUSINESSES ON PLATFORM BILL Standalone Customers Divvy Spending Businesses Invoice2go Subscribers Businesses on Platform BILL Standalone Customers excluding Financial Institutions Customers Financial Institutions Customers BILL Standalone Customers* Q1'23 172,000 22,800 225,100 419,800 126,900 45,100 172,000 Q2¹23 182,700 24,700 228,500 435,800 130,400 52,300 182,700 *BILL Standalone Customer count include ~12,000 Intuit Simple Bill Pay customers in Q4'23 and ~11,000 in Q1'24. ** Does not add to total due to rounding. Q3'23 197,900 27,100 230,300 455,300 134,100 63,700 197,900 Q4'23 201,000 29,200 230,800 461,000 139,400 61,600 201,000 Q1'24 209,300 30,700 231,200 471,200 143,100 66,200 209,300 25

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