Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement onForm S-8 of our reports relating to the financial statements and financial statement schedule of Civitas Solutions, Inc. and the effectiveness of Civitas Solutions, Inc.’s internal control over financial reporting dated December 13, 2018, appearing in the Annual Report onForm 10-K of Civitas Solutions, Inc. for the year ended September 30, 2018.
/s/ Deloitte & Touche LLP
Boston, Massachusetts
December 13, 2018