IRS Form 433-B (OIC) 2023 Version Instructions: Business Offer In ...IRS Form 433-B (OIC) is the financial information statement for an IRS Business Offer In Compromise. This 433-B […] 25 Sep, 2018 in IRS Debt / Offer In Compromise / Tax Guide tagged businesses / forms / offer in compromise / tax resolution by Robert Kayvon, Esq. (updated 292 days ago)