In watching this board over the years I'm baffled at why any tax preparer would want to take on the responsibility of handling payment of client taxes.  It's just another item to go wrong. With the easy online payment system for both Federal and states let the client handle it themselves and there is no malpractice issue.  It seems this system blows up, Link blows up, E-signature blows up, Import blows up.  Why add to the hassles?