OMB control number
Application to Adopt, Change, or Retain a Tax Year
OMB 1545-0134 · TREAS/IRS.
OMB 1545-0134
Form 1128 is needed in order to process taxpayers' request to change their tax year. All information requested is used to determine whether the application should be approved. Respondents are taxable and nontaxable entities including individuals, partnerships, corporations, estates, tax-exempt organizations and cooperatives.
The latest form for Application to Adopt, Change, or Retain a Tax Year expires 2026-07-31 and can be found here.
Latest Forms, Documents, and Supporting Material
All Historical Document Collections