Westpac has proudly become New Zealand‘s first Toitū carbonzero certified bank. We’re actively reducing our emissions, in line with the Paris Agreement, and offsetting the remainder by purchasing New Zealand native permanent forestry carbon credits. This means we’re helping grow a cleaner, healthier New Zealand.

Learn more about what we’re doing and how you can follow in our footprint below.

  • Learn about certification

    Find out what our carbonzero certification means and what we're doing to reduce our footprint.

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  • Calculate Carbon

    What makes up your carbon footprint? Use this handy calculator to find out what yours looks like and offset it here.

    Calculate yours

  • Offset carbon

    Find out some simple steps you can take to follow in our footprint and reduce your emissions.

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Westpac's carbonzero certification

We started our environmental journey back in 2008 where we began measuring and reporting our carbon emissions.  From 2013, we started offsetting our annual carbon emissions by purchasing New Zealand Units through the New Zealand Emissions Trading Scheme. 

To make sure we are following best practice and are aligned to the Paris Agreement, we partnered with Toitū Envirocare in 2019 to improve the efficiency, accuracy and integrity of our emissions management and reporting process.  Toitū helped us set targets that are grounded in science aimed at keeping the increase in global average temperature to below 1.5˚C above pre-industrial levels.

We achieved Toitū carbonzero certification for measuring, reducing, offsetting and reporting our carbon emissions. This means we have achieved net zero carbon emissions by balancing our emissions from our operations with an equivalent amount of offsets through buying carbon credits.  The carbon credits we have invested in are permanent native New Zealand forestry units sourced by Permanent Forests NZ Limited from the Coatbridge project in Marlborough and the Te Arahiwi project in Manawatu-Wanganui.

So what makes up our carbon footprint? The results of our work with Toitū Envirocare showed that in 2019 Westpac New Zealand’s carbon emissions were 7,347 tCO2e (tonnes of carbon dioxide equivalent). As a service company, our emissions come from our business operations: the resources and materials that we use and the services that our suppliers provide us with to do our business.  The biggest emissions for Westpac are our air travel, fuel from our fleet and electricity use in our corporate offices and branches.


What we're doing

Toitū carbonzero certification isn’t a “one and done” achievement. Each year we are audited to retain our certification and show that we’re continuing to reduce our emissions.

It’s not an annual box-ticking exercise either. Our ambition to continue reducing emissions is embedded across the business - we have a 30% reduction target for our Scope 1, 2 and Mandatory 3 emissions by 2025.

Here are just a few ways we’re doing this:

  • Converting 100% of our fleet to electric vehicles by 2025.
  • Continuing our energy efficiency improvements in our branches and corporate sites by installing LED light bulbs and monitoring after hours energy usage.
  • Encouraging more use of technology to reduce business travel.

While we’re actively working on reducing our emissions, there are emissions that we can’t avoid and for these, we offset through carbon credits. This means we’re supporting the regeneration of native bush and in turn offsetting the amount of our carbon we’ve used. Last year we offset over seven thousand tonnes of CO2 which is equivalent to 1,328 return economy flights from Auckland to London.

 To find out more about our sustainability journey, check out our sustainability report.

How you can follow in our footprint

Whether as an individual or a business, everyone has a role to play. Here are some simple tips you can use to start reducing your own carbon footprint. Incorporate these into your daily lives to join us and follow in our footprint.

Are you a business? We learned a lot of lessons along the journey to certification. If you’re interested in achieving carbon neutral certification for your business, check out our case study.

Our tips


Buy second-hand

Giving your pre-loved clothing and household items a second life or buying second-hand goods is a great way to start reducing your carbon footprint.

Opt for less packaging

When out shopping, try avoiding plastic bags or products with unnecessary plastic packaging. Remembering to bring a keep cup, or your own reusable bag or container can help.

Choose environmentally responsible brands

Another way you can join in is by supporting companies that are environmentally responsible. There are hundreds of brands that are sustainably sourced to choose from. Look for organisations who are certified Toitū, Fairtrade, or organic.
A quick Google search and some research can make all the difference before buying. Or download the CoGo app who can connect you to conscious businesses while you're out and about.


Wash your laundry on cold

Did you know switching to cold washes reduces your carbon emissions? Doing just two loads of laundry per week in cold water instead of hot or warm water can save up to 220 kgs of carbon dioxide per year.

Change your light bulbs

Another way you can help is by switching to better lighting. LED light bulbs may cost slightly more, but they use a quarter of the energy and can last up to 25 times longer than incandescent light bulbs.

Switch it off

When you leave the room or aren't using a device, simply turning it off at the wall can further help minimise energy usage.


Drive less

Instead of driving, opting to walk, taking public transport or rideshare is a great way to help reduce carbon emissions produced by your car. The less cars on our roads, the less CO2 emissions in our air.

Care for your car

Did you know taking care of your car can help? Simply making sure you have the right air pressure in your tyres can help improve its fuel efficiency. And make sure you wash it over the grass to stop the pollutants washing down the drain!

Fly economy

When flying on a plane, choosing economy helps reduce emissions, as the carbon emissions produced by the plane is split between more passengers. Flying first class can result in up to nine times more carbon emissions than economy.
You can also opt to offset your emissions when booking flight tickets online with most airlines. Keep an eye out for this prompt next time you’re booking.


Eat less meat and dairy

Did you know reducing your intake of meat and dairy products can help reduce your carbon footprint? Production of meat and dairy contribute to 14.5% of man-made global greenhouse gas emissions. Simply starting a “Meatless Monday” is an easy way to take a step in the right direction.

Buy locally

Another way you can help is by choosing organic and local produce. When we choose to eat local, seasonal fruit and vegetables, we minimise the transport required (and the carbon emissions) to deliver out of season produce to our shores.

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