Q3 Fiscal 2023 Earnings Supplement

Service: We are Becoming More Digitally Enabled A modern client and associate experience for satisfaction, speed and efficiency Efficient onboarding Intuitive client self-service Digital support Spodight on the e Taxes HIR Digital tools that automate implementation processes Early results Empowering clients to view data and complete tasks easily in-product Early results Automated or interactive, real-time digital support for faster resolution Early results 36%+ Run clients self-onboarding 20%+ Reduction in service contacts per client last 5 years 34%+ Service requests supported digitally with ~20% fully contained Copyright 2023 ADP, Inc. 10 ADP

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