Biodiversity Credit Supply Fund and credit purchasing

April 2026 Reverse auction

The April 2026 reverse auction closed on Wednesday 6 May 2026.

The auction sought bids for all ecosystem and species credit types from current or prospective credit owners.

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

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.

August 2025 statewide reverse auction results

The August 2025 statewide reverse auction closed on 17 September 2025 and received 216 bids. Bids were evaluated in accordance with auction documentation, and 1.1 million credits were approved across 215 credit types, subject to buyer confirmation.

Through the August 2025 auction, the Supply Fund successfully secured buyers for more than 29,000 credits totalling over $47 million. Credits being purchased include:

• Alpine Heaths less than 50%
• Central Hunter Grey Box—Ironbark Woodland in the New South Wales North Coast and Sydney Basin Bioregions
• Coastal Valley Grassy Woodlands greater than or equal to 70% and less than 90%
• Cooks River/Castlereagh Ironbark Forest in the Sydney Basin Bioregion
• Freshwater Wetlands on Coastal Floodplains of the New South Wales North Coast, Sydney Basin and South East Corner Bioregions
• Hunter-Macleay Dry Sclerophyll Forests greater than or equal to 70% and less than 90%
• Inland Grey Box Woodland in the Riverina, NSW South Western Slopes, Cobar Peneplain, Nandewar and Brigalow Belt South Bioregions
• Monaro Tableland Cool Temperate Grassy Woodland in the South Eastern Highlands Bioregion
• North Coast Wet Sclerophyll Forests greater than or equal to 50% and less than 70%
• North Coast Wet Sclerophyll Forests less than 50%
• Northern Hinterland Wet Sclerophyll Forests greater than or equal to 50% and less than 70%
• Northern Hinterland Wet Sclerophyll Forests less than 50%
• Southern Tableland Dry Sclerophyll Forests greater than or equal to 50% and less than 70%
• Swamp Oak Floodplain Forest of the New South Wales North Coast, Sydney Basin and South East Corner Bioregions
• Swamp Sclerophyll Forest on Coastal Floodplains of the New South Wales North Coast, Sydney Basin and South East Corner Bioregions
• Sydney Coastal Dry Sclerophyll Forests less than 50%
• Sydney Turpentine - Ironbark Forest in the Sydney Basin Bioregion
• Western Slopes Dry Sclerophyll Forests greater than or equal to 50% and less than 70%
• Western Slopes Grassy Woodlands greater than or equal to 50% and less than 70%
• White Box - Yellow Box - Blakely's Red Gum Grassy Woodland and Derived Native Grassland in the NSW North Coast, NE Tableland, Nandewar, Brigalow Belt South, Sydney Basin, SE Highlands, SW Slopes, SE Corner and Riverina Bioregions
• threatened plants: bluegrass, brown pomaderris, fairy bells, finger panic grass, juniper-leaved grevillea, Pterostylis chaetophora, Pterostylis ventricosa, scant pomaderris, Singleton mint bush, Tetratheca glandulosa, white-flowered wax plant
• threatened animals: barking owl, broad-toothed rat, brush-tailed phascogale, common planigale, Cumberland Plain land snail, eastern cave bat, eastern pygmy-possum, gang-gang cockatoo, green and golden bell frog, green-thighed frog, koala, large-eared pied bat, masked owl, powerful owl, regent honeyeater, south-eastern glossy black-cockatoo, southern greater glider, southern myotis, squirrel glider, superb parrot, wallum froglet.