1982 Winter SOI Bulletin PDF Articles: Projections of return filings, 1982-1990 PDF Individual income tax returns, 1980 PDF Taxpayer usage of Form 1040 and Form 1040A, 1980 PDF Unincorporated business activity, 1979 PDF Windfall profit tax, first quarter, 1981 PDF Preliminary Income and Tax Statistics From 1980 Individual Income Tax Returns PDF
