A Guide to Ethical Banks & Bank Accounts

Besma holding pinatex purse with bank cards

Did you know, you can be more sustainable by simply switching your bank? Yes, ethical banks do exist. It’s one of those things we all forget about – our money is still voting for things, even when it’s put away in a current account. And often, we feel tied to the banks we’ve been using for years too.

All of this is done on purpose. And equally, how our money is used when it’s held by our banks is often hidden from view. So, I decided to do a little more research into the ethics of our banks, and recommend a few more sustainable options for you to choose from…

(Please note, this piece is focused on banks that provide current accounts to the general public. Investment banks, banks providing premium banking services, and other financial providers have not been included. I am not a banking expert or advisor, and am I not affiliated with any banks or services in this post.)

What Do Banks Do With Our Money?

When I was a child, I used to think banks had little vaults where they kept all the money we deposited. I would imagine it a bit like Gringotts in Harry Potter – we all have separate rooms where they keep our pennies and pounds. Shockingly, this isn’t actually the case!

All the money we put into our bank accounts and savings accounts is invested into different things. And while we’re welcome to withdraw that money at any time, when it sits with our banks, it’s funding these things without our direct approval.

Many banks use our savings to invest in low-risk activities, so they can make money and find ways to pay you interest. These activities often include oil drilling, fracking, arms and military. It’s not something they disclose when you open your account, but it’s something you’re potentially funding even if you don’t personally approve of it.

How To Choose an Ethical Bank Account

When it comes to choosing better, more ethical banks to put your money into, I think Ethical Consumer magazine‘s advice is perfect. To choose an ethical bank account, follow these two simple steps:

  1. Check what your bank invests in
  2. Check that your bank pays its taxes

Extinction Rebellion’s campaign to stop funding the climate crisis goes further, inviting you to speak directly with your banker, and use their letter templates to get clear information before continuing with the bank you use, or switching to somewhere better.

Personally, I spent a few days researching ethical banks (and not-so-ethical banks) for this piece, and also reached out directly to all of the ‘best’ banks in the list below. These are the questions I asked, which you may wish to use when speaking with your bank:

  1. Do you invest in fossil fuels, coal power, mining, arctic drilling, tar sands or fracking?
  2. Do you invest in arms or military activities?
  3. Do you have any sustainable and responsible banking practices?
  4. Do you recognise there is a climate emergency, and if so, what actions are you taking?

One of the best pieces of research I found on sustainable banking is Bank Track’s report on banks funding climate change. This highlights all the investment activities banks have taken around the world, including investment banks and other financial service providers.

On the Bank Track website, you can also keep track of a number of big banks and their dealings, good and dodgy alike.

A Note On Building Societies

You may be wondering where building societies fall into all of this. Unlike banks, building societies are ‘owned’ by their customers, and have a reputation of offering lower charges, better interest rates, and a more personalised service. A lot of this isn’t the case any more, but there is one thing that rings true: they don’t have shareholders.

This means building societies aren’t under commercial pressure to make big returns on investments made by shareholders, and they therefore experience less pressure to invest in dirty industries. Customers have a say as to what building societies invest in, and these are often community-focused activities (according to the Building Society Association).

There are 43 building societies in the UK, often tied to locations (such as Coventry, Leeds, Skipton, Yorkshire, or Nationwide) or a cause (such as Ecology Building Society, or UK Green Building Society).

Just be aware if your building society decides to re-structure. Many have converted into banks, such as Bradford & Bingley to Halifax, and Alliance & Leicester to Woolwich.

7 of the Best UK Banks Based on Ethics

Starling Bank and Monzo cards in a purse

Ok, so onto the list of the best ethical banks in the UK! I’m delighted to say I received two very positive responses from both Starling Bank, and Triodos Bank when researching their practices. As such, I’ve put them as top of the list, for their transparency and customer service to boot.

For the rest of the list, my information is taken from their sites and third-party research. All are protected by the Financial Services Compensation Scheme (FSCS) except Revolut.

1. Triodos Bank: Sustainable bank started in 1980 that only uses money in ways that benefit people and the environment. They provide current accounts (with a £3/month charge) as well as savings accounts, investment management, business accounts, and charity banking.

They do not invest in fossil fuels, coal power, mining, arctic drilling, tar sands fracking, arms, or military activities, and have outlined their minimum standards for lending criteria plainly on their website.

Triodos is also the only bank on this list to recognise the climate emergency, with CEO Bevis Watts signing an open letter to The Times in support of Extinction Rebellion last year.

2. Starling Bank: App-based bank that started with business accounts and has recently rolled out current accounts too. The Starling Bank team confirmed to me that they do not invest in fossil fuels, coal power, energy companies, mining, arctic drilling, tar sands, fracking, arms, or military activities. Instead, they invest in “government securities and other high quality liquid assets. [They] do not take investment from energy companies.” They also do not lend to companies involved in extracting fossil fuels.

As a paperless, branchless bank hosted in the cloud, they also have a smaller carbon footprint than most. They were transparent enough to also detail their hosting provider – Amazon Web Services (AWS) Dublin – which is carbon neutral.

3. Monzo: App-based bank that provides personal current accounts and newly-introduced overdrafts. Often used to limit spending, and provides good conversion rates when travelling abroad.

4. Co-operative Bank: Banking arm of Co-operative, that does not invest in arms and military equipment.

5. Charity Bank: Charitable bank that provides personal savings accounts and business loans. They use the money saved to provide loans exclusively to charities, social enterprises and organisations with charitable purposes.

6. Atom Bank: App-based bank that provides personal savings accounts, mortgages, and business loans.

7. Revolut: App-based bank that also focuses on low-cost currency conversions. Revolut is the only bank on this list that is not protected by FSCS, so make sure you’re ok with this before switching to them.

14 of the Worst UK Banks based on Ethics

And if you’d like the low-down on which banks do not qualify as ethical banks, here’s the list:

Bank of Scotland: Part of Lloyds, see below.

Barclays: Biggest investor in fossil fuels, fracking, and coal power out of all European banks, and also invests in arms and military equipment.

First Direct: Part of HSBC, see below.

Halifax: Part of Lloyds, see below.

HSBC: Second-biggest investor in fossil fuels out of all European banks, and also invests in fracking, arms, and military equipment. They are highly likely to use tax avoidance schemes.

Lloyds Bank: Invests in arms and military equipment, and is highly likely to use tax avoidance schemes.

M&S Bank: Part of HSBC, see above.

NatWest: Part of RBS, see below.

RBS: Invests in arms and military equipment, and previously invested heavily in fossil fuels but has reduced this significantly since 2016.

Santander: Invests in fossil fuels, and is highly likely to use tax avoidance schemes.

Tesco Bank: Highly likely to use tax avoidance schemes.

TSB: Highly likely to use tax avoidance schemes.

Ulster Bank: Part of RBS, see above.

Virgin Money: Highly likely to use tax avoidance schemes.

How To Switch To An Ethical Bank – Easily

If you’re looking to change who you bank with, I recommend using the UK Government’s Current Account Switch Service. This is a free service that guarantees you will not be charged for switching to another provider. You can make a switch even if you’re in your overdraft.

Sadly, Charity Bank, Atom Bank, and Revolut are yet to be part of this service, but the other top banks listed can be easily switched to without having to go through your own bank’s T&C’s and cleverly-designed mazes that are designed to keep you a life-long customer!

(P.S. Can’t switch your bank account right away? Why not try focusing on other impactful activities, and reducing and offsetting the carbon emissions associated with them).



  1. Naomi
    July 3, 2020 / 10:49 am

    What can you tell me about Metro Bank? It’s a challenger bank. How does that work?

    • besma
      July 3, 2020 / 12:23 pm

      Hi Naomi, thanks for the comment – unfortunately I only have the information included in this post to share, but it’s worth checking out Ethical Consumer magazine, and the other links I mentioned here to see what the general consensus on Metro Bank is like. You may also wish to write directly to them using the templates included.

      B x

  2. February 18, 2020 / 11:33 pm

    Thanks for this, I have been trying to get some answers from my bank with little success. One issue I’ve had as an otherwise happy Monzo customer is that their Savings Pots are provided by external partners, with little to no information or context about what those partners will do with your money.

    • besma
      February 19, 2020 / 11:28 am

      Hi Alexis – thanks for sharing that information! I didn’t realise saving pots was a third-party product. I’ll contact Monzo’s team and ask them about it.

      B x

      • Callum
        June 5, 2020 / 9:50 pm

        Hi, Just wondering if you ever got a response from Monzo about their savings pots?


        • besma
          June 6, 2020 / 4:43 pm

          Thanks for the comment Callum – after doing a little digging I can see that Monzo uses Shawbrook Bank to provide their saving pots (https://monzo.com/blog/2019/05/02/shawbrook-savings-pots), which was created by RBS but is now owned by a consortium led by BC Partners and Pollen Street Capital.

          Personally I only use Monzo as a current account (and this post focuses on current accounts rather than savings accounts) so it may be worth going with a more sustainably-minded provider such as Triodos if you want to save money and still ensure it doesn’t go towards arms, fossil fuels, etc.

          B x

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