Cashplus Sage and Cashplus join forces, to ease the pressure of Making Tax Digital for small businesses Sage and Cashplus have announced that they have joined forces in order to support small businesses in getting ahead of the making tax digital legislation. Sage and Cashplus join forces, to ease the pressure of Making Tax Digital for small businesses Sage and Cashplus have announced that they have joined forces in order to support small businesses in getting ahead of the making tax digital legislation.