EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1)Registration Statement (Form S-8 No. 333-266362) pertaining to the 2020 Incentive Award Plan of Lemonade, Inc., Metromile, Inc. 2021 Equity Incentive Plan, and the Metromile, Inc. Amended and Restated 2011 Equity Incentive Plan,

(2)Registration Statement (Form S-8 No. 333-254011) pertaining to the 2020 Incentive Award Plan and 2020 Employee Stock Purchase Plan of Lemonade, Inc.,

(3)Registration Statement (Form S-8 No. 333-239656) pertaining to the 2020 Incentive Award Plan, 2020 Employee Stock Purchase Plan, and the Amended and Restated 2015 Incentive Share Option Plan.,

(4)Registration Statement (Form S-3ASR No. 333-268695) of Lemonade, Inc., and

(5)Registration Statement (Form S-8 No. 333-270247) pertaining to the 2020 Incentive Award Plan

of our reports dated February 28, 2024, with respect to the consolidated financial statements of Lemonade, Inc. and the effectiveness of internal control over financial reporting of Lemonade, Inc. included in this Annual Report (Form 10-K) of Lemonade, Inc. for the year ended December 31, 2023.

/s/ Ernst & Young LLP

New York, New York

February 28, 2024