Sezzle Results Presentation Deck

1Q23 PERFORMANCE AND FINANCIAL SCORECARD TOTAL INCOME (US$ in MILLIONS) 1Q23 1Q22 1Q21 ADJUSTED EBITDA¹ (US$ in MILLIONS) 1Q23 1Q22 1Q21 @ 1Q22 ($17.8) 1Q21 $3.8 ($3.4) $7.2 $27.6 $26.0 $34.7 TOTAL INCOME LESS TRANSACTION RELATED COSTS² (US$ in MILLIONS) 1Q23 $8.3 +25.5% YoY $21.4 +$26.0M YoY +$17.6M YoY GAAP NET INCOME (LOSS) (US$ in MILLIONS) 1Q23 1Q22 ($28.0) 1Q21 ADJUSTED EBTDA¹ (US$ in MILLIONS) 1Q23 1Q22 1Q21 1Q23 1Q22 ($19.4) 1Q21 ($11.4) 0.8% 1.9% ($4.8) TOTAL INCOME LESS TRANSACTION RELATED COSTS² AS A PERCENTAGE OF UMS 1 Adjusted EBITDA and Adjusted EBTDA are non-GAAP financial measures. For a reconciliation of GAAP Net Income (Loss). Adjusted EBITDA, and Adjusted EBTDA see Appendix II. 2 Transaction Related Costs is a non-GAAP financial measure equal to the sum of Transaction Expense, Provision for Credit Losses, and Net Interest Expense. See Appendix I for reconciliation of Transaction Related Costs and respective definitions. $1.7 5.8% $4.9 +$29.7M YoY +$24.3M YoY +494 Bps SEZZLE INC 1Q23 Presentation | 7

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