Abstract: A method and apparatus for adding buoyancy to the transom of a boat by attaching buoyant material to the trim tabs, or to the planing surface of the trim tab, or constructing the trim tab itself of buoyant material. The buoyancy can be used to correct listing of a boat, or compensate for outboard engines that are unable to clear the water line when tilted up, or generally raise the stern of the boat while at rest. Buoyancy can be added to conventional trim tab plates or added to vertically extending interceptor blade type trim tabs. The invention also proposes a method by which trim tabs can be attached to the transom or the “step” or “pocket” above by a fixed or manually adjustable linkage, such as with a turnbuckle or jack screw or through-bolted perforated rods.