The register showed Labour leader David Cunliffe's new trust, which he used to take donations for his leadership bid last year.
The TR Trust collected around $9500 in donations from supporters Selwyn Pellett, Perry Keenan and Tony Gibbs and two anonymous donors.
The annual returns revealed that two National MPs benefitted from Government's partial sale of state-owned power companies.
Speaker David Carter bought shares in Mighty River Power and Meridian Energy, and Paul Foster-Bell bought shares in Mighty River Power before he entered Parliament last May.
The register also detailed the various gifts that MPs declared.
In the last year, Prime Minister John Key was given three free golf memberships from New Zealand clubs, as well as two rounds of golf at the Kauri Cliff course and two helicopter rides.
He was also given an iPad by the Sultan of Brunei and three smartphones by Samsung.