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.

6 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. 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.

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

4. 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.

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

6. 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.

Formerly Listed: 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.

Update 08/21: Starling Bank has recently accepted funding from the Qatar Investment Authority (QIA) which is heavily linked to fossil fuels. It goes against the above promises and other public statements declaring their opposition to fossil fuels, and for this reason they have been moved off the above list.

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).

What About The Bank of England?

In addition to our usual high street banks and building societies, you may be wondering about the ethics of the Bank of England (BoE). The BoE is the central bank of the United Kingdom, and its banking model is followed by most modern central banks around the world.

While the BoE doesn’t provide consumer banking services, it’s still worth mentioning due to its influence on modern banks and insurers, and its responsibility for regulation and supervision of the banking and insurance industries in the UK.

In 2020, the BoE published the report Climate-Related Financial Disclosure 2020, recognising:

Climate change creates financial risks that will affect us all. These risks arise through two primary channels: 

  • physical effects of climate change; and
  • impact of changes associated with the transition to a carbon-neutral economy.

Within the report, they highlight the need to understand climate change further, and that banks and insurers will need to make inevitable changes away from investments in fossil fuel producers, energy utilities, properties in flood-risk zones, emission-intensive sectors, and high-carbon technologies (even if the degree and speed of these changes is vague.)

The BoE is part of the Network for Greening the Financial System and the Sustainable Insurance Forum, both of which encourage the sharing of this knowledge to a worldwide membership of banks and insurers.

Within the BoE, they have also set the goal of “reducing their carbon footprint consistent with temperature warming of 1.5°C above pre-industrial levels” by 2030, which is commendable commitment that’s actually a lot better than steps being taken many big businesses or even the UK Government, despite declaring climate emergency in 2019.

This too is noted in their report: “the pace of change in the United Kingdom will need to increase to meet forward-looking national and international climate targets.” As the UK’s central bank, I hope they can make that change known and acted upon as soon as possible.



  1. November 14, 2022 / 9:36 am

    Hi, I have found this article really useful in helping me to think about more ethical banking. Thanks for doing the groundwork.

    In relation to your comment regarding Starling, we as a family had just made the switch and then I read your amendment about Starling.

    I like them as a bank. They’re great at communication and the interface they use in the app in clear and easy to navigate, however I was wary about their links with the QIA. I am currently trying to find out about this and have messaged them a couple of times and they just reply with a stock answer of – “_The Qatar Investment Authority (QIA) is one of Starling’s investors. The QIA was set up in 2005 specifically to reduce Qatar’s reliance on fossil fuels and to expand investment into non-hydrocarbon sectors. That’s one reason why it has been investing in a range of well-known British brands in addition to Starling._

    I was worried about their statement on their website in which they state “We do not invest directly in fossil fuels, which includes new fossil fuel extraction.”. The word ‘directly’ seems to insinuate that indirectly, they do? I really don’t want to bank with an organisation that funds fossil fuel production directly or indirectly.

    When questioned again they stated that – “We are dedicated to doing what we can to fight climate change, from having a sustainable business model (no branches and paperless from day 1) to reducing our own, already low, emissions.

    We are committed to investing responsibly and do not invest in the fossil fuel industry, and we continue to support our customers and employees to make more sustainable choices.

    For further information, you can also view our Ethics Statement and Sustainable Banking webpage online by tapping onto the links below:



    I hope this helps and please let us know if you need any further assistance.

    I am still left doubting their involvement with the QIA and would really like to know more about this partnership. They many not ‘directly’ invest in the fossil fuel industry’ but I don’t feel comfortable at all about the fact that they are ‘directly’ partnering with an organisation renowned for their involvement in the fossil fuel industry. I’d really like to find a way to find out more about this relationship. Any ideas???

    • besma
      November 15, 2022 / 4:34 pm

      Hi Jos, thanks for your comment! I think as we’ve found in our conversation on Twitter (https://twitter.com/zippytiptoes/status/1592092342613319680), Starling Bank may not directly invest in business linked to fossil fuels, but they are funded by the QIA, which in turn, has been heavily linked to fossil fuels. I remember it being a really controversial update and one that made me not want to bank with them anymore.

      I hope that helps clarify things a little!

      B x

      • Margaret Cummings
        February 18, 2023 / 7:15 pm

        Besma, do you know where Kingdom bank stand on fossil fuel, and arms investment please?

        • besma
          February 19, 2023 / 7:14 pm

          Hi Margaret, thanks for your comment. I’m not familiar with Kingdom Bank, but have made a note to look into them and update this post soon.

          B x

  2. Monica Georgiadou
    August 25, 2021 / 3:12 pm

    Hello! Thank you so much for this very informative article. This might seem like a silly question but how does one contact one’s bank?? Is the only way to contact them (and ask the difficult questions you mention in this article) writing a letter? I haven’t found any email addresses for the banks I use (Halifax and Santander) and writing a letter seems like a very old fashioned way of contacting people in high places!

    • besma
      September 1, 2021 / 2:33 pm

      Hi Monica, thanks for the question! I was able to contact all of the banks I’ve listed as ethical over email, so it’s surprising to hear that Halixfax and Santander don’t offer this as a contact option. Have you tried looking at their Press or Corporate pages? There might be a contact form hidden there.

      B x

  3. kd
    February 5, 2021 / 12:58 am

    thank you. most informative and easy to read.

    • besma
      February 5, 2021 / 1:48 pm

      Happy to help!

      B x

  4. Peter Howe
    October 24, 2020 / 11:05 am

    I note Sterling Bank invest in Government Bonds. Do they have knowledge or say as to what those Bonds are invested in, to be in line with their Ethical Investment Policy. For we know our current UK Government have invested billions of taxpayers monies across the world in fossil fuels with scant regard for local communities & the local & international environment.

  5. Aimee
    September 11, 2020 / 9:17 am

    Great article! I’ve been cleaning up the ethics of my finances and spending for years, and it’s good to see such an article, thanks! Also to add that HSBC were involved in drug cartel money and there was a civil suit from four families in regards to the death of their family members: https://www.bloomberg.com/news/articles/2016-02-09/hsbc-sued-for-drug-cartel-murders-after-money-laundering-probe

    So important to put our money where our mouth is – thanks for the info!

  6. Melangell
    August 14, 2020 / 7:54 am

    I have heard that Coop used to be brilliant on the ethical front but that all changed a few years ago when they lurched into a financial crisis, and it was unearthed that they hadn’t bothered to review their ‘ethical’investments and were in fact reliant on arms trading and tobacco companies for their own pensions! Don’t know if the situation has changed since then.

    • besma
      August 14, 2020 / 10:41 am

      Hi Melangell, this is news to me! Thanks for sharing. It may be worth researching this further – Co-op’s status as an ethical bank on this list comes from research from Ethical Consumer Magazine and Bank Track, but of course these things can change.

      B x

    • Lucy
      September 11, 2020 / 9:05 am

      I looked into this recently myself, as I wasn’t sure I wanted to continue as a co-op customer after they were bought out by hedge funds. Apparently a union of co-op members was formed recently that campaigned to retain the ethical policy that was in place prior to the buy-out, and they won, so the policy they had before the mess still stands. Unfortunately in 2019 they didn’t hold an external audit of the bank to test the policy in action, so at this point we don’t actually know if its being implemented. However, they have said they’ll hold one this year, usually at the end of the year, so we’ll have to wait and see. If they don’t hold it, i’ll definitely be switching!

  7. Karl Brent
    August 13, 2020 / 4:38 pm

    Hi Besma

    Great article! What do you know about banks supporting logging and deforestation industries? I don’t want my money in a bank that has links to meat or palm oil or ones still destroying forests, at the very least.


    • besma
      August 14, 2020 / 10:37 am

      Hi Karl, unfortunately the data I looked at when researching banks for this post didn’t break down exact activities – you may wish to write to your bank if you’d like to know about their investments. But I agree with you – I don’t want to support links to meat, palm oil, or deforestation either!

      B x

    • Alan Wilkinson
      October 29, 2020 / 10:26 am

      FYI there is a new report detailing which banks have the worst effect on global biodiversity at https://portfolio.earth

  8. Toby
    August 9, 2020 / 9:29 pm

    Disappointed to hear about TSB as I currently bank with them. Could you point me to more info?

    • besma
      August 10, 2020 / 11:06 am

      Hi Toby, thanks for the comment. All of the sources I used are listed in the article, although my recommendation would be to speak directly to TSB if you have any queries, or switch to a more ethical bank as listed here.

      B x

  9. 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

  10. 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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