Robo-advisers UK: are they worth it for everyday investors?

You start by completing a risk questionnaire — questions about your investment timeframe, attitude to losses, financial goals, and existing assets. Based on your answers, the platform assigns you a portfolio (typically on a scale from 'cautious' to 'aggressive') made up of low-cost exchange-traded funds (ETFs) that track various global indices. The platform automatically rebalances your portfolio when market movements push the allocation off target. It also handles ISA wrappers, reinvests dividends, and provides a simple dashboard to track performance. All you do is set up a monthly direct debit and watch your portfolio grow. The convenience is genuine — particularly for beginners who would otherwise leave money in a cash savings account rather than invest.

The main UK robo-advisors each have slightly different propositions, and fees change, so check each provider's current charges page before you choose. Nutmeg (owned by J.P. Morgan) offers fully managed, fixed allocation and socially responsible portfolios, with a management fee that falls as your balance grows, plus fund costs. Moneyfarm uses tiered fees that get cheaper on larger pots. Wealthify (owned by Aviva) and Moneybox are aimed at smaller, regular investors; Moneybox charges a platform fee and a monthly subscription on top of fund costs, which weighs more heavily on small balances. Vanguard's LifeStrategy funds are technically DIY but are often cited as the robo-advisor alternative: fixed allocation funds with a 0.22% ongoing charge, plus a platform fee (0.15% a year on Vanguard's own platform, with a minimum charge for smaller accounts).

For confident, engaged investors, a DIY approach using a simple global index tracker (like Vanguard FTSE All-World or iShares MSCI World) inside an ISA on a low-cost platform (like InvestEngine, which charges 0% on ETF portfolios) costs virtually nothing in platform fees. A global index ETF has a total expense ratio (TER) of just 0.12–0.22% per year. Over 30 years, the difference in fees between a robo-advisor at 0.6%/year total cost and a DIY approach at 0.15%/year total cost can amount to tens of thousands of pounds on a significant portfolio. However, the behavioural argument for robo-advisors is real: many people who use them invest consistently and don't panic-sell in downturns, whereas DIY investors sometimes make costly emotional decisions.

Robo-advisors are a genuinely good choice for investing beginners who need guardrails and automation, people who know they'll panic-sell if they see a portfolio down 20%, small investors for whom the DIY overhead isn't worth it, and people who want a set-and-forget ISA that will genuinely beat cash savings over a decade. They're less optimal for larger investors who could meaningfully reduce fees by going DIY, financially engaged people who actively enjoy managing their investments, and those who want full control over exactly which ETFs or sectors they invest in.