Reenacts GS 105-13.34, providing C corporations with an income tax credit for certain real property donations, and GS 105-151.12, providing individuals with income tax credits for donations of certain real property, and makes the following changes to those statutes. Makes the credit applicable to the donation of an interest in real property located in the state that is useful (1) for farmland preservation; (2) as a buffer to limit land use activities that would restrict, impede, or interfere with military training, testing, or operations on a military installation or training area or otherwise be incompatible with the mission of the installation; or (3) for floodplain protection in a county that in the three years preceding the donation, was the subject of a Type II or III gubernatorial disaster declaration as a result of a natural disaster. Requires the certification that the donated property is suitable for one or more of these public benefits be made by the Department of Natural and Cultural Resources (was, the Department of Environment and Natural Resources). Further amends GS 105-153.11 to make the portion of a qualifying donation that is the basis for the credit under the statute ineligible for deduction as a charitable contribution under GS 105-130.9. Deletes outdated language. Effective for taxable years beginning on or after January 1, 2019, and expires for taxable years beginning on or after January 1, 2023.