Exhibit 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following registration statements of our reports dated February 21, 2020, relating to the financial statements of The Allstate Corporation and subsidiaries, and the effectiveness of The Allstate Corporation’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of The Allstate Corporation for the year ended December 31, 2019, and to the reference to us under the heading “Experts” in the Prospectus, which is part of the registration statements.

Form S-3 Registration Statement Nos.	Form S-8 Registration Statement Nos.
333-34583	333-04919
333-224541	333-40283
	333-134243
	333-175526
	333-188821
	333-200390
	333-218343
	333-228490
	333-228491
	333-228492
	333-231753

/s/ DELOITTE & TOUCHE LLP

Chicago, Illinois

February 21, 2020