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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , DC 20549 FORM 10 - K ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR □ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to CREDIT ACCEPTANCE CORPORATION ( Exact name of registrant as specified in its charter ) Michigan ( State or other jurisdiction of incorporation or organization ) Commission file number 000-20202 25505 W. Twelve Mile Road Southfield , Michigan ( Address of principal executive offices ) Title of each class Common Stock , $ .01 par Registrant's telephone number , including area code : ( 248 ) 353-2700 value Securities registered pursuant to Section 12 ( b ) of the Act : Trading symbol ( s ) CACC Securities registered pursuant to section 12 ( g ) of the Act : None Accelerated filer Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes þ No o ( I.R.S. Employer Identification No. ) 38-1999511 Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes o No p Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes þ No o Non - accelerated filer Name of each exchange on which registered The Nasdaq Stock Market LLC Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes þ No o 48034-8339 ( Zip Code ) Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " Rule 12b - 2 of the Exchange Smaller reporting company Act . Large accelerated filer Emerging growth company 0 At February 4 , 2021 , there were 16,818,933 shares of the registrant's common stock issued and outstanding . If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . O Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . DOCUMENTS INCORPORATED BY REFERENCE Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No þ The aggregate market value of 9,886,968 shares of the registrant's common stock held by non - affiliates on June 30 , 2020 was approximately $ 4,142.7 million . For purposes of this computation , all officers , directors and 10 % beneficial owners of the registrant are assumed to be affiliates . Such determination should not be deemed an admission that such officers , directors and beneficial owners are , in fact , affiliates of the registrant .