What Is Ethical Investing?

How Ethical Investing Works

Ethical investing applies non-financial criteria to the investment selection process. Rather than evaluating companies solely on revenue, growth, and profitability, ethical investors also consider how a company affects the environment, treats its workers, and governs itself.

This approach has moved from a niche concern to a mainstream investment strategy. In the UK, assets under management in responsible investment strategies now exceed £85 billion, driven by growing consumer demand, regulatory support from the Financial Conduct Authority (FCA), and increasing evidence that companies with strong ESG practices manage risk more effectively.

Main Approaches to Ethical Investing

Ethical investing is not a single methodology. There are several distinct approaches, and many portfolios combine two or more:

• Negative screening: Excludes companies involved in specific harmful activities — fossil fuel extraction, tobacco, weapons manufacturing, gambling, or animal testing. This is the most widely used ethical investment strategy in the UK.
• Positive screening: Actively selects companies demonstrating strong environmental or social performance. Rather than just avoiding harm, this approach rewards companies making a measurable positive contribution.
• Best-in-class: Invests in the most ESG-responsible companies within each sector, including traditionally controversial industries. This maintains diversification while incentivising improvement.
• Impact investing: Directs capital towards investments that generate measurable social or environmental outcomes alongside financial returns — such as renewable energy projects or affordable housing.
• ESG integration: Incorporates environmental, social, and governance data into every investment decision as financially material factors, without necessarily excluding any sector.

UK Regulatory Framework

Ethical investing in the UK is regulated by the Financial Conduct Authority (FCA). Key regulatory developments include the Sustainability Disclosure Requirements (SDR), which require fund managers to provide clear, evidence-based labels for sustainability claims. Four labels are available: Focus, Improvers, Impact, and Mixed Goals.

The FCA's anti-greenwashing rule, effective since May 2024, requires all FCA-authorised firms to ensure sustainability claims are fair, clear, and not misleading. This provides important consumer protection and helps investors identify genuinely ethical products. For detailed analysis, see our FCA regulation guide.

Where Can You Invest Ethically?

Ethical investment options are available across all major UK investment wrappers:

• Pensions: Workplace pensions, SIPPs, and SSASs can all hold ethical funds. See our ethical pension advice page.
• ISAs: Stocks and Shares ISAs offer tax-free growth on ethical investments up to £20,000 per year. See our ethical ISA advice page.
• General investment accounts: No contribution limits, but subject to capital gains and income tax.

Performance of Ethical Investments

Academic research consistently suggests that ethical and ESG-integrated investments deliver competitive risk-adjusted returns over the long term. A meta-analysis by NYU Stern covering over 1,000 studies found that the majority showed a neutral or positive relationship between ESG factors and financial performance. However, past performance is not a reliable indicator of future results, and short-term returns can diverge from conventional benchmarks depending on sector exposure.