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Title
  • SOI Partnership File -- Form 1065

    The SOI Partnership File is a microdata file based on a stratified sample of unaudited returns filed using Form 1065. The basis for the file is a Tax Year, defined to include returns processed by...

    IRS Statistics of Income Division
    Last Updated: Jul 28, 2026
    Access Modality: IRS-issued Laptop, IRS Onsite
    Fees: No Fees
    Topics: Taxation
  • SOI Corporate File -- 1120-series

    The SOI Corporate File is a microdata file based on a stratified sample of unaudited returns filed using Form 1120, 1120-F, 1120-L, 1120-PC, 1120-REIT, 1120-RIC, or 1120-S. The basis for the file...

    IRS Statistics of Income Division
    Last Updated: Jul 28, 2026
    Access Modality: IRS-issued Laptop, IRS Onsite
    Fees: No Fees
    Topics: Taxation