Nature conservation

Biodiversity Reform

Total fund deposit – discount rate

Find out about the change to the discount rate and the impact of this change.

The Biodiversity Offsets Scheme was established under the Biodiversity Conservation Act 2016. Under the Scheme, applications for development or clearing approvals must set out how impacts on biodiversity will be avoided and minimised. The remaining residual impacts can be offset through the purchase and retirement of biodiversity credits or payment into the Biodiversity Conservation Fund.

Landholders can establish Biodiversity Stewardship Agreements to create offset sites on their land to generate biodiversity credits. These credits are then available to the market for purchase by developers, landholders or the Biodiversity Conservation Trust to offset the impacts of development or clearing. Sufficient funds are held to support the long-term management of the biodiversity stewardship sites (Site).

Changes to the discount rate


The Biodiversity Offset Scheme discount rate was reduced from 3.5% to 2.6% on 20 November 2018.

What is the discount rate?

A central component of the Biodiversity Offsets Scheme is the requirement to pay money into the Biodiversity Stewardship Payments Fund for the future management of that Site (known as the total fund deposit – see below for further details). The discount rate helps calculate the total fund deposit for a Site, which is then invested, and the proceeds used to pay landholders to manage the Site in perpetuity.

What is the impact of this change?

Reducing the discount rate will increase the amount of money invested for the future management of the Site (i.e. the total fund deposit). This will ensure that sufficient funds are available to make all future management payments.

The revised discount rate only applies to Biodiversity Stewardship Agreement applications received after 19 November 2018. The change to the discount rate did not apply retrospectively, or to applications received on or before 19 November 2018, or to BioBanking agreement applications.

Why did it change?

To ensure the long-term financial and environmental sustainability of stewardship sites, the total fund deposit must be calculated using a discount rate that reflects prevailing market conditions. The former Office of Environment and Heritage (OEH) reviewed the discount rate and determined that an adjustment was needed to ensure sufficient funds are invested for the management of stewardship sites in perpetuity. OEH obtained actuarial advice as part of this review.

The Total Fund Deposit Calculator

The costs of managing a stewardship site vary according to its size, location, vegetation type, cover and condition, topography, fencing and possible boundary management issues. These factors determine the total fund deposit to cover the costs of managing the stewardship site in perpetuity.

The Total Fund Deposit Calculator helps estimate the total fund deposit and payment schedule.

This calculator breaks down specific management actions and plans into individual tasks for the short and long-term, and helps determine the frequency of the actions. Landholders can price each task based on the current costs of materials and labour. All estimated annual costs should be entered on the calculator.

The landholder should enter the costs at current dollar equivalents and the calculator then calculates the net present value, or in other words the amount that needs to be invested to account for future management requirements. The amount calculated by the spreadsheet is the total fund deposit.

For more information, visit Biodiversity Offset Scheme support or call 131 555.

Page last updated: 27 August 2019