Exhibit

We consent to the incorporation by reference in Registration Statement Nos. 333-187256, 333-195835, and 333-224693 on Form S-8, Registration Statement No. 333-226991 on Form S-4, and Registration Statement No. 333-211332 on Form S-3 of our report dated February 25, 2019, with respect to the consolidated statements of financial condition of Banner Corporation and Subsidiaries as of December 31, 2018 and 2017, and the related consolidated statements of operations, comprehensive income, changes in shareholders’ equity, and cash flows for each of the three years in the period ended December 31, 2018, and the effectiveness of internal control over financial reporting as of December 31, 2018, which reports appear in this Annual Report on Form 10-K of Banner Corporation for the year ended December 31, 2018.