Missing a K-1 or 1099 on October 14: How to File a Complete Return Anyway
Published on: 01/10/2026
Missing a K-1 or 1099 before the extended deadline? Learn how to reconstruct the amount, file a complete return, handle IRS matching notices, and correct the figure without losing options.
missing K-1 tax returnfiling without a 1099October 15 extension deadlineextended filing deadlineestimated K-1 incomeForm 4852 substituteForm 1040-X amended returnForm 8082 inconsistent treatmentCP2000 notice responseIRS automated underreporterwage and income transcriptIRS Online Accountfailure to file penaltyfailure to pay penaltylate K-1 planningpass through income estimatesIRS notice response deadlinetax record reconstructionIRS resolution specialistenrolled agent AtlantaSteve Perry EABooks Taxes and MoreIRS risk managementyear round tax planningcorrected 1099



