Avalara Analyst Day Virtual

Highly diversified by partner revenue % TTM Revenue by Partner (1Q22) 3% 2% 5% 7% 3% 4% 4% 8% 11% 29% ■All other partners - ΑΡΙ ■ ERP #1 ■ ERP #2 ■ Ecomm #1 ■ Ecomm #2 › Successful direct sales model assisted by our partners > Majority are our direct customers on our paper > We generally control pricing and economics > Few partners that have more influence on pricing - accounts for ~12% of our 2021 revenues ■ ERP #3 ■ ERP #4 ■ ERP #5 ■ ERP #6 ■ Ecomm #3 23% * TTM 1Q22 Revenue. % of Revenue by partner assumes Revenue allocation for multi-connector customers. For example, revenue for a customer with connectors from three partners is allocated evenly to each Partner for the purposes of analysis. AVALARA ANALYST DAY VIRTUAL | 35

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