528: 2025 Form 528 Information Return Agriculture Exclusion (2025)
Oklahoma · Oklahoma Tax Commission · Used for tax years 2025
Oklahoma Form 528 is an information return for owners investing in a new or expanded agricultural commodity processing facility. It reports the amount of qualifying property placed in service during tax year 2025 and identifies the owner, facility, location and activities.
Who files this form
Owners who invest in a new or expanded Oklahoma agricultural commodity processing facility and intend to claim the exclusion under 68 OS Section 2358 and OAC Section 710:50-15-62 must file this information return.
The return reports the amount of qualified property placed in service during the preceding calendar year. The 2025 form asks for qualifying property placed in service during tax year 2025.
When it's due
For tax year 2025, Form 528 must be filed by January 31, 2026.
What you'll need
Have the following information ready to complete the form:
- Owner's name, address, and Social Security number or federal employer identification number (FEIN).
- Agricultural processing facility's name and FEIN.
- Facility location and the types of agricultural commodities being produced, processed, or marketed.
- A detailed description of the activity.
- Total amount of qualifying property placed in service during tax year 2025.
The form also includes spaces for the investor's signature and date.
How to file
Complete the owner and facility information, describe the location and activity, and enter the total amount of qualifying property placed in service during tax year 2025. Sign and date the return.
Mail it to:
Oklahoma Tax Commission
Oklahoma City, OK 73194
Common mistakes
- Do not assume the Oklahoma Tax Commission must personally notify you of state tax law changes. The form states that the Commission is not required to give taxpayers actual notice of those changes.
- Review the return carefully before signing. The signature declaration states, under penalty of perjury, that you have examined the return and that it is true, accurate, and correct to the best of your knowledge and belief.
Questions people ask
What amount do I report on the 2025 form?
Report the total amount of qualifying property placed in service during tax year 2025.
What is an agricultural commodity processing facility?
It means buildings, structures, fixtures, or improvements used or operated primarily to process or produce marketable products from agricultural commodities.
Can a dairy operation qualify as an agricultural commodity processing facility?
The definition includes a dairy operation that requires a depreciable investment of at least $250,000 and produces milk from dairy cows.
Does a facility used only for storage or transportation qualify?
The definition excludes a facility that provides only storage, cleaning, drying, or transportation of agricultural commodities, and nothing more.
What are examples of agricultural commodities?
The form lists farm or ranch products such as wheat, corn, soybeans, cotton, timber, cattle, hogs, sheep, horses, and poultry. It also includes products of crops or livestock in their unmanufactured state, such as milk and eggs.