Reverse auction status
The latest reverse auction closed on 30 April 2025.
Information about future auctions will be published on this webpage.
About the Biodiversity Credit Supply Fund
The Biodiversity Credit Supply Fund (the supply fund) buys credits based on demand from development and infrastructure projects. Credits are then sold to public or private sector proponents who need credits to offset the biodiversity impacts of their projects, or other buyers who may seek credits for philanthropic or strategic purposes.
The supply fund is operated by the Department of Climate Change, Energy, the Environment and Water with the aim of making credits easier to sell and buy, improving the functioning of the biodiversity market. The department will apply fair, transparent and ethical processes and decision-making when buying and selling credits through the supply fund.
Biodiversity credits are generated through biodiversity stewardship agreements. The sale of credits provides funding for landholders to improve the management of pests, weeds and fire and restore habitat.
Operating Protocol
The Operating Protocol document sets out how the supply fund operates. It covers governance, ways to identify demand and supply, methods for buying and selling credits, and monitoring and reporting.
Download: Biodiversity Credits Supply Fund – Operating Protocol
Biodiversity Credit Supply Fund market update
The supply fund market update covers key outcomes from the supply fund's reverse auctions, how auctions are run, the supply fund's role in the market, and information on credits approved for purchase by the supply fund. This is part of regular reporting to support development of the biodiversity credits market and promote understanding of the supply fund.
Download: Biodiversity Credits Supply Fund market update
April 2025 Central-West Orana Renewable Energy Zone reverse auction results
The April 2025 Central-West Orana Renewable Energy Zone reverse auction closed on 30 April 2025 and received 45 bids. Bids were evaluated in accordance with the published documentation and more than 14,000 credits, totalling around $27 million, were approved for purchase, covering:
- Eastern Riverine Forests
- Inland Grey Box Woodland in the Riverina, NSW South Western Slopes, Cobar Peneplain, Nandewar and Brigalow Belt South Bioregions
- North-west Slopes Dry Sclerophyll Woodlands
- Southern Tableland Dry Sclerophyll Forests
- Western Slopes Grassy Woodlands
- White Box – Yellow Box – Blakely's Red Gum Grassy Woodland and Derived Native Grassland
- threatened plants: Ausfeld’s wattle, fairy bells, pine donkey orchid, silky Swainson-pea, small purple-pea, scant pomaderris
- threatened animals: eastern pygmy-possum, koala, little eagle, masked owl, squirrel glider, striped legless lizard.
March 2025 Cumberland IBRA reverse auction results
The March 2025 Cumberland reverse auction closed on 7 April 2025 and received 10 bids.
Bids were evaluated in accordance with the published documentation and more than 100 credits totalling around $4.5 million were approved for purchase, covering:
- Cumberland Plain Woodland in the Sydney Basin Bioregion
- Cooks River/Castlereagh Ironbark Forest in the Sydney Basin Bioregion.
The department provides feedback and suggestions to landholders on how to best sell their credits. This includes offering opportunities to promote credits for sale through other channels, such as the Biodiversity Credits Catalogue.