Binding contract.
Binding contract. Under this paragraph (m), a binding contract to construct, reconstruct, or erect property, or to acquire property, is a contract that is binding at all times on the taxpayer under applicable State or local law. A binding contract to construct, reconstruct, or erect property or to acquire property, does not include a contract for preparation of architect's sketches, blueprints, or performance of any other activity not involving the beginning of physical work.