Form 8980 is used by partnerships to request an adjustment of an imputed underpayment under section 6225(c). Current products Form 8980 PDF Instructions for Form 8980 – Pub 5346 PDF Related forms and instructions Form 8982, Affidavit for Partner Modification Amended Return Under IRC §6225(c)(2)(A) or Partner Alternative Procedure Under IRC §6225(c)(2)(B) PDF Form 8983, Certification of Partner Tax-Exempt Status for Modification Under IRC §6225(c)(3) PDF Form 15028, Certification of Publicly Traded Partnership to Notify Specified Partners and Qualified Relevant Partners for Approved Modifications Under IRC §6225(c)(5) PDF Form 8981, Waiver of the Period Under IRC Section 6231(b)(2)(A) and Expiration of the Period for Modification Submissions Under IRC Section 6225(c)(7) PDF Form 8984, Extension of the Taxpayer Modification Submission Period Under Section 6225(c)(7) PDF Related BBA centralized partnership audit regime File an administrative adjustment request for a BBA partnership Electronic Submission of Forms by Audited BBA Partnerships and Their Pass-Through Partners BBA partnership audit process