Sustainable finance means making financial decisions, investing, saving, spending, with an eye on their environmental and social impact alongside the expected financial return. It's the idea that where your money goes shapes the world, and that it's possible to seek returns without ignoring those effects.

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What ESG means in practice

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You'll often hear sustainable finance described through the lens of ESG: Environmental, Social, and Governance. These three criteria are used to evaluate companies and investments beyond pure financial performance.

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• Environmental, Does the company minimize pollution, manage resources responsibly, and work to reduce its carbon footprint? Strong candidates publish sustainability or carbon reports and pursue renewable energy where feasible.

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• Social, How does the company treat its employees, suppliers, and communities? This includes fair wages, safe working conditions, and avoiding supply chains that rely on exploitative labor.

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• Governance, Is the company run transparently and accountably? Good governance means independent boards, ethical leadership, accurate financial reporting, and real accountability to shareholders.

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ESG scores are calculated by research firms and used by investors to filter or weight their portfolios. No scoring system is perfect, but ESG criteria give a structured way to look beyond headlines and assess how a company actually operates.

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Why sustainable finance matters

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Private capital is a significant driver of what gets built, scaled, and prioritized. When large amounts of investment flow toward companies with strong environmental and social practices, those practices become more economically rewarding, and more likely to spread.

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The European Union has made sustainable finance a policy priority through the EU Sustainable Finance Action Plan and its Paris Climate Agreement commitments. Regulations now require financial institutions to disclose how they manage sustainability risks and how their products align with ESG criteria.

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For individual investors, sustainable finance offers the ability to align a portfolio with personal values. Research increasingly suggests that well-governed, environmentally sound companies carry less long-term risk, not just less environmental harm.

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How bunq supports sustainable banking

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bunq has built sustainability into the product itself. Every bunq user plants a tree for every €100 spent, automatically, through the app. bunq publishes a sustainability overview and ESG Policy outlining its commitments to environmental responsibility and green investment priorities.

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When you bank with bunq, your deposits are used responsibly. bunq actively avoids financing fossil fuels and other high-impact industries.

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Learn more about bunq's approach on the sustainability page. If you want to invest in line with your values, bunq Stocks lets you build a portfolio that reflects what matters to you.

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Frequently asked questions

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• Does sustainable investing mean lower returns? Not necessarily. ESG-focused portfolios have shown competitive long-term performance, and avoiding high-risk sectors can reduce volatility.

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• What is greenwashing? When a company or fund exaggerates its sustainability credentials without substantive action to back them up. EU regulations are tightening to reduce this.

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• Is sustainable finance only about climate? No. It covers social factors (labor practices, community impact) and governance (transparency, ethics) as well as environmental concerns.

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• How do I know if an investment is truly sustainable? Look for third-party ESG ratings, check whether the fund publishes its holdings, and read the company's sustainability reports. Regulated disclosure requirements in the EU (SFDR) also make it easier to compare funds.

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