Introduction to the Biodiversity Offset Scheme for Developers

Mark Evans • May 3, 2023

A few things developers should know about the NSW Biodiversity Offset Scheme

The Biodiversity Conservation Act 2016 (BC Act) and accompanying regulations creating the Biodiversity Offset Scheme (BOS) represent a substantial overhaul of conservation laws in NSW.


This article provides a summary of the new scheme and more particularly, the options available to developers purchasing and retiring biodiversity credits (Credits).


Offsetting Impacts

Depending on your site, you will often have 4 choices to offset environmental impacts:

  1. find and buy suitable biodiversity credits;
  2. pay an amount directly into the Fund;
  3. undertake other biodiversity actions that qualify as biodiversity conservation measures; or
  4. any combination of the above.


How does the new Biodiversity Offset Scheme work?

The new BOS replaces the biobanking scheme. The BOS provides a new process for the assessment and offsetting of impacts on biodiversity values in connection with proposed development.

The BOS is designed to create a system for the creation and sale of biodiversity credits by landowners to those impacting the environment.


One of the main aims of the BOS is to establish and encourage an open market between those impacting biodiversity values (usually developers) and those managing and protecting biodiversity values in areas nearby (usually landowners).


Does the Biodiversity Offset Scheme apply to your development?

The following developments are subject to the BOS and applications for development consent must include a Biodiversity Development Assessment Report (BDAR):

  1. development needing consent under Part 4 of the EP&A Act (excluding complying development);
  2. activities under Part 5 of the EP&A Act;
  3. state significant development and State significant infrastructure.

If your proposed development impacts biodiversity above a certain threshold (BOS Threshold), you will need to engage an accredited assessor to prepare a BDAR. 


The BOS Threshold takes into account the impact of:

  1. clearing of native vegetation and the loss of habitat;
  2. development on the following habitat of threatened species or ecological communities:
  3. karst, caves, crevices, cliffs and other geological features of significance;
  4. rocks;
  5. human made structures;
  6. non-native vegetation,
  7. development on the connectivity of different areas of habitat of threatened species;
  8. development on the movement of threatened species that maintains their lifecycle;
  9. development on water quality, water bodies and hydrological processes that sustain threatened species and threatened ecological communities, and
  10. wind turbine strikes or vehicle strikes on protected animals.


If your proposed development is “likely to significantly affect threatened species”, you will also need to submit a BDAR. Whether development is “likely to significantly affect threatened species” is determined by:

  1. the test in section 7.3 of the BC Act; and
  2. whether the development is in a declared area of "outstanding biodiversity value".


The BDAR will determine the impact of your proposed development on biodiversity values and the biodiversity conservation measures (including the retirement of Credits) needed to avoid or minimize that impact. The BDAR is a key document in the process and will govern the actions you need to take to proceed with your development. An ecologist can assist you to prepare a BDAR but it is critical that you engage a professional and experienced accredited assessor to prepare the BDAR.


A consent authority must consider the BDAR when determining whether to grant development consent for the proposed development. If consent is granted, the consent authority must include a requirement to retire Credits in the conditions of consent.


Serious and irreversible impacts

If your development will have serious and irreversible impacts on biodiversity values the consent authority cannot and will not consent to your development in its current form.

The determination of "serious and irreversible impacts on biodiversity values" varies but generally means an impact that is likely to contribute significantly to the risk of a threatened species or ecological community becoming extinct. For example, reducing the population size of a species that has a very small population size or impacting the habitat of a species that only occurs within a very limited geographic distribution.

This determination in your BDAR can relate to only some areas or sometimes the whole area of the proposed development meaning those areas cannot be cleared or impacted, regardless of any proposed offsets or biodiversity conservation measures.


Offsetting the impact of your development

Depending on the requirements contained in the BDAR and determined by the consent authority, the measures to offset your development impact are any one or a combination of the following:

  1. retirement of the required number and class of like-for-like Credits ("like for like" means the same threatened ecological community or class of vegetation located in the same sub region as the impacted site or within 100kms of the site);
  2. payment of the value of the Credits (determined by the Biodiversity Conservation Trust (Trust)) directly into the Biodiversity Conservation Fund (Fund) to satisfy the requirement to retire Credits;
  3. the retirement of the required Credits in accordance with the variation rules; and
  4. the funding of a biodiversity conservation action that would benefit the relevant threatened species or ecological community and that is equivalent to the cost of acquiring the required like-for-like Credits.


 Buy credits from a credit holder privately or pay into the Fund?

Landowners generate Credits on biodiversity stewardship sites. They do this through setting aside and managing tracts of their land in return for classes of Credits which can be publicly traded through the OEH register. Credit holders (usually landowners) seek to sell the Credits to developers at a price negotiated privately between the parties.


In practice, paying an amount into the Fund will often be the most convenient (and often only) choice for a developer. The amount per Credit you must pay into the Fund is determined by the Trust according to the formula provided in the Calculator. It's best to get the accredited assessor you engage for the BDAR to calculate this amount.


The Calculator uses a 'base price' for each type of Credit multiplied by a risk factor and a Trust administration fee. The base price fluctuates and reflects the number of trades recently conducted and the price paid per Credit under those trades. The risk factor represents a risk loading the Trust applies in the Calculator to cover the Trust's risk in undertaking biodiversity conservation measures later with the money you pay into the Fund now. Usually the price per Credit charged by credit holders would be less than the cost to pay directly into the Fund as credit holders would not charge the risk factor or administration fee and both parties can negotiate a better deal.


In areas where many "trades" have already been made, the data used by the Trust in the Calculator is robust and Credits are publicly available for developers to purchase. In most areas outside of metropolitan Sydney, the Hunter Valley and the Illawarra region this is not the case and the Trust will be indirectly setting the market price through the Calculator base price for some time to come.


Buying credits – that's the end of the story?

In most cases, the Credit will be transferred by the Credit holder to the developer on settlement of the purchase. The purchaser of a Credit must apply in writing to the OEH to retire the Credit.

Buyer beware - the OEH can refuse an application to retire a Credit for a number of reasons. Most importantly if the OEH becomes aware that any payment required to be made to the Biodiversity Stewardship Payments Fund by the landowner in relation to the Credit has not been made (the Payments Fund is different to the Conservation Fund – landowners generating Credits are required to pay a dedicated amount of the money they receive from sale of the Credits to the Payments Fund). It is important for developers to ensure that appropriate checks are made and the purchase of Credits is undertaken by a professional adviser with experience in this area.


This area of law is new and rapidly evolving. Complying with your biodiversity conservation measures and purchasing Credits must be carefully managed.



Require further assistance? please do not hesitate to call us on (02) 9145 0900 or make an enquiry below.

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By Mark Evans May 4, 2025
This article provides a general overview of the NSW Biodiversity Offsets Scheme, followed by a discussion of the tax implications of establishing a biodiversity stewardship site for Councils. What is the NSW Biodiversity Offsets Scheme? The NSW Biodiversity Offsets Scheme (the Scheme ) is a market-based scheme that is administered by the NSW Department of Climate Change, Energy, the Environment and Water ( Department ) and aims to help address the loss of biodiversity and threatened species in NSW. It seeks to do so by creating incentives for landowners to improve or maintain biodiversity values as a means of offsetting impacts on other areas. The Scheme is established by the Biodiversity Conservation Act 2016 ( BC Act ) . How the Scheme works Councils can establish a ‘biodiversity stewardship site’ ( Stewardship Site ) on eligible land within NSW by means of entering into a Biodiversity Stewardship Agreement ( Stewardship Agreement ) with the Department: s 6.17 BC Act. In doing so, Councils commit themselves to enhancing and protecting biodiversity values on the Stewardship Site. On execution of a Stewardship Agreement, the Council is entitled to receive an amount of biodiversity credits which are created by the Department. The amount of biodiversity credits are calculated by the Council’s accredited ecologist (and verified by the Department) in accordance with the methodology prescribed in the Biodiversity Assessment Method ( BAM ): s 6.7 BC Act. Biodiversity credits are created in respect of existing biodiversity values on the land and management actions to be carried out in accordance with the Stewardship Agreement. A biodiversity credit remains in force unless it is cancelled or retired: s 6.18 BC Act. The market value of the biodiversity credits is calculated by the Department at the time of creation. Sale and transfer of biodiversity credits Biodiversity credits may be sold by the Council to a buyer (or in parcels to a number of buyers) seeking to offset the impact of actions detrimental to biodiversity or to permanently secure conservation outcomes. The sale price of the biodiversity credits is determined by agreement between the Council and the buyer. Alternatively, biodiversity credits may be used by Council to offset negative biodiversity impacts arising from an activity carried out under Part 5 of the Environmental Planning and Assessment Act 1979 : s 7.15 BC Act. The Council may transfer biodiversity credits to a buyer or third party: s 6.19 BC Act. The transfer is made through an application to the Department by the parties to the transfer. The transfer is not effective until the transfer is authorised by the Department and registered in the register of biodiversity credits: s 6.20 BC Act. On the registration of the first transfer of the biodiversity credits, the Total Fund Deposit ( TFD ) specified in the Stewardship Agreement (or a proportion, if not all the credits are transferred) is required to be paid by the buyer of the biodiversity credits into the Biodiversity Stewardship Payments Fund (the Fund ): s 6.21 BC Act. The TFD is a fixed amount of money used to cover the long-term management costs of a Stewardship Site. It is a calculated value representing the present value of future payments needed to fund the agreed management actions. Contracts for the sale of biodiversity credits between the Council and purchasers will state that the credit owner is entitled to the full amount of the agreed sale price of the biodiversity credits, including the TFD, and that the credit owner will have the obligation to pay the TFD. Once the credits have been ‘used’ to offset negative biodiversity impacts and to permanently secure the conservation of biodiversity, they are ‘retired’ such that they can no longer be used for any other purpose: s 6.27 BC Act. Annual payments are made out of the Fund to the Council in respect of management actions carried out in accordance with the Stewardship Agreement: s 6.34 BC Act. Management actions typically include obligations to fence areas of land, control exotic pest species, carry out bushfire management and weed management. In summary, annual payments made out of the Fund can help Councils meet the expenses they currently incur managing large tracts of land while achieving significant biodiversity conservation outcomes. Disclaimer This is a general overview of the Scheme and tax implications. The information in this article is general in nature and is intended as a guide only. It is not designed to be, nor should it be regarded, as legal or accounting advice. The business and financial structure for each landholder or entity managing a biodiversity stewardship site or conservation area is likely to be unique. Therefore, the way taxation law applies will depend on individual circumstances and you should consult a professional tax adviser before engaging with the Scheme or entering into a Stewardship Agreement. Capital Gains The ATO deems that a capital gains event (type D4) occurs on entry into a Stewardship Agreement: s 104-47(1) ITAA. The landowner makes a capital gain if the “capital proceeds” are more than that part of the “cost base” of the land that is apportioned to the covenant. Most state and federal government departments, including local councils are tax exempt: s 50.25 ITAA. GST on entry into Stewardship Agreement When the Department and the Council enter into a Stewardship Agreement, the Council makes a taxable supply by entering into the agreement in return for the biodiversity credits issued by the Department and the Department makes a taxable supply of biodiversity credits in return for the Council entering into the agreement. These are non-monetary transactions. The Department and the Council (if both are registered for GST): are required to pay GST in respect of their supply, calculated on the estimated value of the credits; and can claim an input tax credit (ITC) in respect of the tax invoice received from the other party. If a Council is registered for GST, the Department will issue a Department GST invoice and Recipient Created Tax Invoice (RCTI) on behalf of the Council when the Department sends the registered BSA to the Council. The Department will use the estimated market value of the biodiversity credits for the purposes of these invoices. As the GST payable and the input tax credit that can be claimed are the same amount, the net GST position for both the Council and Department is zero. This means that these invoices do not need to be paid. However, both the Department and the Council are required to account for the GST payment and the input tax credit in their business activity statements (BAS). Capital gains from sale or transfer of credits A CGT event (type A1) occurs upon the sale of biodiversity credits. The Council may make a capital gain or loss depending on the capital proceeds and cost base of the credits: s 104-10(4) of the ITAA. A biodiversity credit constitutes a CGT asset: s 108-5 of the ITAA. CGT event (type A1) happens when the Council disposes of biodiversity credits: s 104-10 of the ITAA. Most state and federal government departments, including local councils are tax exempt: s 50.25 ITAA. GST on sale of biodiversity credits For the purposes of GST, the sale of credits is a taxable supply of goods. This means that the biodiversity credit price should include GST that the Council then needs to pay to the ATO. Receipt of annual payments from the Biobanking Trust Fund Annual payments from the Fund made by the Department to the Council are a contractual payment for the performance of services and should be ordinary income and assessable for income tax purposes. Most state and federal government departments, including local councils are tax exempt: s 50.25 ITAA . GST on annual payments The supply of stewardship services by the Council to the Department in return for payment of the annual payment should be a taxable supply. The Department will issue a recipient created tax invoice (RCTI) and include an amount for GST when making the annual stewardship payments for management actions the Council delivers. Conclusion Councils can establish biodiversity stewardship sites on eligible land within NSW by means of entering into a Biodiversity Stewardship Agreements with the Secretary of the Department. On execution of a Stewardship Agreement, the Council is entitled to receive an amount of biodiversity credits. Biodiversity credits may be sold by the Council to a buyer seeking to offset the impact of actions detrimental to biodiversity or to permanently secure conservation outcomes. Biodiversity credits may be used by Council to offset negative biodiversity impacts arising from an activity carried out by Council. Some of the proceeds of the sale of biodiversity credits must be paid into the Fund to cover ongoing management actions and costs. Annual payments are made out of the Fund to the Council in respect of management actions carried out in accordance with the Stewardship Agreement. Management actions typically include obligations to fence areas of land, control exotic pest species, carry out bushfire management and weed management. In summary, annual payments made out of the Fund could help Councils meet the expenses they currently incur managing large tracts of land while achieving significant biodiversity preservation outcomes. Disclaimer This is a general overview of the Scheme and tax implications. The information in this article is general in nature and is intended as a guide only. It is not designed to be, nor should it be regarded, as legal or accounting advice. The business and financial structure for each landholder or entity managing a biodiversity stewardship site or conservation area is likely to be unique. Therefore, the way taxation law applies will depend on individual circumstances and you should consult a professional tax adviser before engaging with the Scheme or entering into a Stewardship Agreement.
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