Property developers are buying $1070 ACT Labor "memberships" entitling them to discounted tickets to the party's fundraising events.
ACT Labor offers membership to what it describes as a "business supporter program", a kind of loyalty scheme that gives companies discounted tickets to normal party fundraising events.
The scheme has been run for many years, but the party has now begun voluntarily disclosing who has paid for a membership – a disclosure it is not legally required to make.
Last financial year, Elections ACT's register shows that 12 entities paid the $1070 for an annual membership. The majority were property developers.
Quay Building Group, Hindmarsh Corporate, Dexar Group, Dowse Projects, and SHL Developments all became members, while the Molonglo Group, for reasons unknown, purchased two memberships.
Others who purchased the memberships included the Australian Catholic University, the University of Canberra vice-chancellor's office, Westpac, the Retail Guild of Australia, and Newgate Communications.
The membership lasts 12 months, and only discounts tickets to the handful of party fundraising events each year, not to individual MLA's campaign fundraisers.
Labor says it does not give extra access to members of the Legislative Assembly or officials.
The NSW Labor Party has banned donations from property developers altogether, and Greens Minister Shane Rattenbury has repeatedly called on the ACT branch to follow suit.
ACT Labor secretary Matt Byrne said the ACT had strong and transparent electoral laws, with which the party fully complied.
He said the party had pursued reforms to reduce its reliance on donations.
"Whilst ACT Labor accepts donations, we have made a number of reforms to our revenue streams including receiving more contributions from our members through membership fees that ensures that the party is not reliant on donations for the operation of the party," he said.
The party also went beyond the requirements of the electoral laws by publicly disclosing the details of its in-kind gifts, something which the Canberra Liberals do not do.
The Liberals similarly receive thousands of dollars in donations from local property developers, including the Amalgamated Property Group, the Molonglo Group, Village Building, the Englobo Group, and others.
Last month, the ABC reported that a group of Sydney developers, including one who had appeared before the NSW Independent Commission Against Corruption, had donated $20,000 to the Canberra Liberals.
The Liberals ruled out transferring any of the money back to the NSW branch, where donations from property developers are illegal.
Meanwhile, Labor has also been loaned $200,000 for an election war chest from the "1973 Foundation", the party's property investment vehicle.
The foundation was set up using money from the ACT Labor Clubs, which are heavily reliant on pokies revenue, to avoid having them directly donate to the party.
The property investments now generate their own profit, from which disbursements are made to Labor.
The foundation made two $100,000 loans to Labor in recent months, which are designed to help the party through a double-election year. Some of the money will be used for campaigning, Mr Byrne said.
The loans have no interest, and will be repaid soon after October's ACT election using money from the electoral commissioner.
Another payment of $254,715 was made to the party, which is the foundation's annual disbursement to help administer ACT Labor.
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