Sinn Féin MPs do not need to declare party wages on their register of interests, the parliamentary standards watchdog has said.
It follows the DUP writing to the parliamentary standards commissioner about Sinn Féin MPs not including wages received from the party on the Westminster register.
Sinn Féin MPs do not receive a salary from Westminster as they do not take their seats, but the party has said it pays them a wage from its own resources.