IBM Results Presentation Deck

Non-GAAP supplemental materials Reconciliation of expense summary - 3Q 2022 SG&A Currency Acquisitions/divestitures Base* RD&E Currency Acquisitions/divestitures Base* Operating expense & other income Currency GAAP Acquisitions/divestitures 5 pts 0 pts (7 pts) 3 pts 5 pts (8 pts) 3022 Non-GAAP Adjustments 6 pts 3 pts (99 pts) 0 pts 0 pts (1 pts) 0 pts 0 pts 0 pts Operating (Non-GAAP) 5 pts 0 pts (8 pts) 0 pts 7pts (2 pts) 1 pts Base* 92 pts (7 pts) The above reconciles the non-GAAP financial information contained in the "Expense summary" discussion in the company's earnings presentation. See Exhibit 99.2 included in the company's Form 8-K dated October 19, 2022, for additional information on the use of these Non-GAAP financial 3 pts 5 pts (8 pts) measures. *Represents the percentage change after excluding the impact of currency, acquisitions and divestitures. 27

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