Systems and methods are provided for efficiently processing withholding payments for constructive dividends. A party that receives constructive dividend payments also has a corresponding short position in a withholding financial instrument. A clearing house computer system adjusts the value of a withholding financial instrument in response to receipt of constructive dividend payments. The clearing house computer system determines a variation margin amount for the short party and processes a variation margin payment from the short party to a withholding account through the variation margin settlement system.