Financing was the process of suppling money to support a project or purchase.
Following the 1937 disappearance of Amelia Earhart, rumors came about that her flight was financed by the United States government as part of an intelligence mission against the Japanese. (VOY: "The 37's")
According to an alien huckster in an advertisement for Nimbus III, "Easy financing through Federation Federal can put you in your own home..." (Star Trek V: The Final Frontier)