This bill amends 72 O.S. 2021, Section 63.19, which pertains to tax refund donations to the Oklahoma Department of Veterans Affairs. The amendment includes a reauthorization of the provisions that allow taxpayers to donate a portion of their tax refunds to support the Equipment and Capital Improvement Program of the Department. The funds generated from these donations are designated for purchasing equipment, developing capital improvement projects, and acquiring properties for the expansion or enhancement of existing projects.

Additionally, the bill establishes a revolving fund known as the "Capital Improvement Program Revolving Fund" within the State Treasury, which will consist of all donations received. The Oklahoma Department of Veterans Affairs is authorized to invest these funds, and any earnings from such investments will also be deposited into the fund. The bill also allows taxpayers to claim refunds for erroneous donations within three years of the tax return due date, with specific provisions for handling these refunds. The act is set to take effect on November 1, 2026.