AUTOMATIC DATA PROCESSING INC (ADP)

John C. Ayala Cash Bonus – Corporate Officer Severance Plan

Joseph De Silva Cash Bonus

Peter J. Hadley — Offer Letter | Annual base salary of $650,000.; Annual target bonus of 150% of annual base salary, based on performance objectives.; Participation in long-term incentive compensation program (PSUs and RSUs) with an expected annual total target equity award value of $4,875,000 for fiscal year 2026.; Participation in Company's 401(k), executive retirement, deferred compensation, medical and health, life, accident, disability, stock purchase, and other benefit programs.; In case of involuntary termination without cause: 18 months of salary continuation, prorated bonus, and continued vesting of unvested equity awards for 18 months.; Under Change in Control Severance Plan: if employment terminated without cause or for 'good reason' within two years after a change in control, entitled to 150% of total annual compensation and accelerated vesting of unvested equity awards.; Subject to stock ownership guidelines requiring ownership target equal to three times base salary as CFO.; Subject to the Company's Clawback Policy.

Peter J. Hadley Cash Bonus – Annual Cash Bonus Plan for Officers

Peter J. Hadley RSU – Long-Term Incentive Compensation Program

Peter J. Hadley PSU – Long-Term Incentive Compensation Program

Joseph De Silva — Employment Agreement | Promotion to Executive Vice President, North America and Chief of Operations from previous role as President, Global Sales.; Base salary will increase by 6.2% in connection with the new role.; Annual target bonus as a percentage of base salary increased from 100% to 150%.

John C. Ayala — Retention Agreement | Stepping down from the role of Chief Operating Officer effective January 1, 2025.; Agreement to continue serving as a corporate officer of the Company during a transition period through March 31, 2025.