The Internal Revenue Service has released the Final OID Tables which include information received January through December of 2021. The following tables were amended: Section I-B Section III-A through III-D Section III-F The 2021 tables are available in three formats: 2021 OID Tables (TXT) 2021 OID TablesPDF 2021 OID Tables XLSX The 2021 OID tables in Microsoft Word and HTML are available upon request at the following email address: Pub1212@irs.gov . Please specify desired format. Prior year versions of the tables are also available. OID Tables Tax Year Formats 2020 TXT | PDFPDF | XLSXXLSX 2019 TXT | PDFPDF | XLSXXLSX 2018 TXT | PDFPDF 2017 TXT | PDFPDF 2016 TXT | PDFPDF You can also download the compressed (zipped) versions of the tables for the following prior years: 2015ZIP 2014ZIP 2013ZIP 2012ZIP 2011ZIP 2010ZIP 2009ZIP 2008ZIP 2007ZIP