518-C: 2025 Form 518-C Report on Sale of Venture Capital Tax Credit (2025)

Oklahoma · Oklahoma Tax Commission · Used for tax years 2025

Oklahoma Form 518-C reports the sale of a venture capital tax credit. It identifies the original investor, the venture capital company, the buyers, the dates of sale, and the amounts of credit sold.

Who files this form

The original investor must submit Form 518-C to the Oklahoma Tax Commission when selling a venture capital tax credit.

When it's due

For the tax year 2025 version of Form 518-C:

  • The original investor must submit the form by January 15 following the date the venture capital tax credit is sold.
  • The credit must be transferred in the year for which it will be used. A credit transferred after December 31 cannot be used for the prior year’s tax.

What you'll need

Have the following information ready:

  • Beginning and ending dates of the reporting year.
  • Total credit transferred and the year the credit was earned.
  • Transferor’s name, Social Security or FEI number, and address.
  • Name of the venture capital company.
  • Each buyer’s name, Social Security or FEI number, date of sale, and amount of credit sold.

The form also includes a transferor signature and a notary section. Attach additional schedules if necessary.

How to file

Complete the reporting-year, transferor, venture capital company, and credit information. List each buyer and the details of each sale. Attach additional schedules if necessary.

Sign the form and complete the notarization section, including the notary’s state and commission expiration.

The original investor must submit the form to the Oklahoma Tax Commission. The destination printed on the form is:

Oklahoma Tax Commission

Oklahoma City, Oklahoma 73194

Common mistakes

  • Missing the submission deadline. The original investor must submit the form by January 15 following the date of sale.
  • Using a late transfer for the prior year’s tax. The form warns that a credit transferred after December 31 cannot be used for the prior year’s tax.
  • Leaving out additional sale details. Furnish the names of buyers and amounts sold, and attach additional schedules if necessary.

Questions people ask

Who is responsible for submitting Form 518-C?

The original investor must submit it to the Oklahoma Tax Commission.

What information must I provide about each buyer?

Provide the buyer’s name, Social Security or FEI number, date of sale, and amount of credit sold.

Can I transfer a credit after December 31 and use it for the prior year’s tax?

No. The form says a credit transferred after December 31 cannot be used for the prior year’s tax.

What if I need more space to report sales?

Attach additional schedules if necessary.

Does the form include a notary section?

Yes. It includes a statement that the form was signed and subscribed before a notary public, along with spaces for the notary’s state, signature, and commission expiration.

Official sources

All versions of 518-C