Quick Answer
Yes. Once an inheritance reaches your account it is yours to invest as you choose. In the UK, the most tax-efficient routes are a Stocks & Shares ISA (£20,000 a year) and a pension or SIPP (up to £60,000 a year, with tax relief). Both can hold ethical, ESG and SDR-labelled funds. For larger sums, money sits in a General Investment Account and is gradually moved into ISAs over time. Capital is at risk.
Inheriting money rarely feels straightforward. It often arrives at a difficult time, comes with a sense of responsibility, and brings choices that can feel paralysing — especially if you also want the money to reflect your values.
The good news: you don't have to decide everything at once. The UK tax system actually rewards people who pause, think, and use their allowances year by year. This guide walks through the practical options — calmly, in plain English.
Here's what most people don't realise
- Inheritance tax is paid by the estate, not by you. The cash hitting your account is yours, with no further income tax due simply for receiving it.
- There is no rush. Parking the money in NS&I, a high-interest cash account or premium bonds for 3–6 months while you decide is a perfectly sensible first move.
- Ethical investing is mainstream. Major UK platforms (AJ Bell, Hargreaves Lansdown, interactive investor, Fidelity) all offer SDR-labelled ethical, ESG and impact funds inside an ISA or pension.
- Allowances reset on 6 April. If you receive money in March, you may be able to use two years' ISA allowance within a few weeks.
The Key UK Options
| Wrapper | Annual limit | Why it matters |
|---|---|---|
| Stocks & Shares ISA | £20,000 / tax year | Tax-free growth and income. The natural first home for inherited cash you want to invest ethically. |
| Pension / SIPP | Up to £60,000 (annual allowance) | Income tax relief on contributions. Strong choice if you're under 75 and not yet drawing it. |
| General Investment Account (GIA) | No limit | For amounts above ISA / pension limits. Subject to dividend tax and CGT (annual allowance £3,000). |
| Premium Bonds / NS&I | £50,000 cap | Useful as a short-term holding pot while you decide, not a long-term ethical strategy. |
| Cash savings | FSCS protected to £85k per institution | Sensible for an emergency fund and any money needed within 3 years. |
Allowances and rules shown are for the 2025/26 UK tax year and may change.
What people typically do
Patterns vary by age and amount, but a common shape for someone inheriting £100,000 to £300,000 in their 40s or 50s looks like this:
- Hold 6–12 months of essential spending in cash for security and peace of mind.
- Clear or reduce expensive debt — credit cards, then perhaps part of the mortgage if rates are high.
- Fill the current year's ISA with ethical funds aligned to risk appetite and time horizon.
- Use pension carry-forward if you're a higher or additional-rate taxpayer — the tax relief is significant.
- Invest the balance in a GIA in ethical funds, then "Bed & ISA" each new tax year to move it into the ISA.
See what people in your situation usually do
Our short ethical profile quiz helps clarify your values, time horizon and risk appetite — useful before any lump sum decision.
Take the Ethical Profile QuizCommon mistakes
- Investing the whole sum on day one without a cash buffer or a plan for the first 12 months.
- Leaving it in cash for years — UK inflation has eroded purchasing power steadily; cash alone rarely keeps up.
- Skipping the ISA wrapper and paying unnecessary dividend or capital gains tax in a GIA.
- Buying a single "green" fund on a tip rather than building a diversified ethical portfolio across regions and asset classes.
- Ignoring SDR labels. "Ethical" is not legally protected; SDR Focus, Improvers, Impact and Mixed Goals labels carry FCA-defined criteria.
Top 4 Risks to Be Aware Of
- Sequence-of-returns risk. Investing a lump sum just before a market fall hurts more than the same loss after years of compounding. Phasing in over 6–12 months helps manage this.
- Greenwashing. Some funds market themselves as sustainable without robust criteria. SDR labels and a fund's prospectus are the reliable check, not the brochure.
- Concentration risk. Renewable infrastructure trusts and clean tech funds can be volatile; they are best held as part of a balanced portfolio rather than the whole portfolio.
- Tax drag. Holding investments outside an ISA or pension can quietly cost 1–2% a year in dividend tax, interest tax and CGT — especially as the GIA allowances have shrunk.
What this means for you
If you're inheriting £10,000 to £50,000, an ethical Stocks & Shares ISA is usually all you need. If you're inheriting £100,000+, the conversation shifts to combinations — ISA, pension, GIA — and to phasing the money in over several tax years.
Either way, the underlying principle is the same: build a diversified, low-cost ethical portfolio inside the most tax-efficient wrapper available, sized to your time horizon and risk appetite.
Example: a £150,000 inheritance, age 48
- • £15,000 held in an easy-access cash account as an emergency fund.
- • £20,000 into an ethical Stocks & Shares ISA in the current tax year.
- • £40,000 into a SIPP using carry-forward, claiming higher-rate tax relief.
- • £75,000 into a GIA in ethical multi-asset and global equity funds, with £20,000 transferred into the ISA each new tax year via Bed & ISA.
Illustrative only. Allowances and tax treatment depend on individual circumstances.
Simple next steps
- Pause. Move the money to a single, safe account (NS&I, a high-interest savings account or premium bonds) for at least a few weeks.
- Clarify your goals. Retirement, mortgage, children, charity, lifestyle? Write the answers down before choosing wrappers.
- Take the ethical profile quiz to define what "ethical" means to you — exclusions, themes, impact.
- Use this year's ISA allowance. Even if you're still deciding the rest, this step is rarely wrong.
- Speak to an FCA-regulated adviser for anything above £50,000 — pension carry-forward, IHT planning and tax modelling more than pay for the advice.
What people regret later
The most common regret we hear is not "I invested badly" — it's "I left the money in cash for five years because I couldn't decide." Inflation does not wait. A simple, diversified ethical ISA started early almost always beats a perfect plan that never gets implemented.
Educational, not advice
This article provides general information for UK residents and does not constitute personalised financial advice. We connect readers with FCA-regulated advisers for tailored recommendations on inheritance, pensions and ethical investing.
Capital is at risk. Tax treatment depends on individual circumstances and may change in the future. Past performance is not a reliable indicator of future results.
Get your personalised plan
Take the ethical profile quiz to map your values and goals, or speak directly to Kathryn for a confidential review of your inheritance options.