<ACCESSION-NUMBER>0000019612-20-000049 <TYPE>10-K <PUBLIC-DOCUMENT-COUNT>191 <PERIOD>20191231 <FILING-DATE>20200302 <DATE-OF-FILING-DATE-CHANGE>20200302 <FILER> <COMPANY-DATA> <CONFORMED-NAME>TCF FINANCIAL CORP <CIK>0000019612 <ASSIGNED-SIC>6021 <IRS-NUMBER>382022454 <STATE-OF-INCORPORATION>MI <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>10-K <ACT>34 <FILE-NUMBER>001-39009 <FILM-NUMBER>20676163 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>333 W. FORT STREET <STREET2>SUITE 1800 <CITY>DETROIT <STATE>MI <ZIP>48226 <PHONE>800-867-9757 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>333 W. FORT STREET <STREET2>SUITE 1800 <CITY>DETROIT <STATE>MI <ZIP>48226 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>CHEMICAL FINANCIAL CORP <DATE-CHANGED>19920703 </FORMER-COMPANY> </FILER>