Best UK Robo-Advisor 2026

A robo-advisor is an investment platform that builds and rebalances a diversified portfolio for you, based on a short risk-tolerance questionnaire and your investment horizon. You answer five or six questions, the platform picks a portfolio of low-cost trackers, and it manages the asset allocation and rebalancing automatically.

The pitch is simplicity. You don't pick funds, you don't track performance against benchmarks, you don't rebalance. In exchange, you pay an extra layer of platform fee on top of the underlying fund costs. UK robo-advisors charge between 0.20% and 0.75% per year as the platform fee, on top of a 0.10% to 0.30% fund OCF. The honest comparison is the all-in cost, not the headline platform fee.

The major UK robo-advisors are Nutmeg (JP Morgan-backed), Wealthify (Aviva-backed), Moneyfarm, InvestEngine, and AJ Bell's Dodl. Each has a different opinion on portfolio construction, but the underlying philosophy is the same: low-cost passive index funds wrapped in a managed envelope.

Robo-advisors are convenience products, not edge products. They are right when:

• You would otherwise leave the money in cash. Paying 0.5% per year to actually be invested in global equities beats 0% paid on money sitting in a savings account at 4%.
• You don't want to make any investment decisions and value the platform doing it for you.
• You're starting with a small balance and don't want to overthink your first £1,000 or £5,000 of investing.
• You like the behavioural framing of seeing a 'portfolio risk level' rather than picking individual funds.

They are usually the wrong choice when:

• You're comfortable picking a single all-in-one global tracker fund (Vanguard LifeStrategy 80, HSBC FTSE All-World, iShares World ESG). The fund-only route costs 0.22% all-in via Trading 212 or similar; the robo route is 0.50% to 0.80% all-in.
• Your pot is above £100,000. The percentage-fee compounding makes robos meaningfully expensive at scale.
• You actively want to control your asset allocation (more emerging markets, less UK bias, specific factor tilts).

The number that matters is the all-in fee: platform fee plus fund OCF, both expressed as a percentage of your pot per year.

• Dodl (AJ Bell) - 0.15% platform + ~0.20% fund OCF = ~0.35% all-in. Minimum £24/year so the % rises sharply on tiny pots.
• InvestEngine - 0% platform on DIY portfolios, 0.25% platform on managed. With ~0.16% fund OCF the managed route is ~0.41% all-in.
• Nutmeg Fixed Allocation - 0.45% platform + ~0.17% fund OCF = ~0.62% all-in.
• Nutmeg Fully Managed - 0.75% platform + ~0.32% fund OCF = ~1.07% all-in.
• Wealthify - 0.60% platform + ~0.16% fund OCF = ~0.76% all-in (Original portfolios).
• Moneyfarm - tiered 0.75% down to 0.35% based on pot size, plus ~0.20% fund OCF.

Over 30 years, the gap between a 0.35% robo and a 0.22% DIY tracker on a £100,000 starting pot at 5% real return is roughly £8,500. The gap between a 0.62% robo (e.g. Nutmeg Fixed) and the same DIY route is about £39,000. Fees compound the wrong way.

The honest version of the trade-off:

DIY global tracker (e.g. HSBC FTSE All-World inside a Trading 212 Stocks and Shares ISA):

• Cost: ~0.22% all-in.
• Decisions required: choose one fund, contribute regularly, rebalance never (the fund is its own globally-rebalanced portfolio).
• Time to set up: 20 minutes including ISA application.

Robo-advisor (e.g. Nutmeg Fixed Allocation balanced portfolio):

• Cost: ~0.62% all-in.
• Decisions required: complete risk questionnaire, choose risk level (1-10).
• Time to set up: 30 minutes including questionnaire.

The robo costs roughly 3x what DIY does. What you get back: the platform rebalances between funds inside the portfolio for you (DIY single-fund doesn't need rebalancing), and you get a 'this is your risk level' label that some savers find emotionally helpful during volatile markets.

For most readers who can pick one all-world tracker fund, the DIY route wins on cost and on long-run net return. The robo is the right choice if your alternative is genuinely not investing at all, or if the slight UX premium is worth the fee differential to you.

Robo-advisors emerged in 2010-2014 with the original pitch that algorithm-driven portfolios could beat human-managed funds while charging much less. The 'less than human-managed funds' part is unambiguously true: active UK retail funds typically charge 1.0% to 1.5%, and most underperform their benchmark over 10 years. Robos in the 0.40% to 0.75% range beat that comfortably.

What the original pitch missed is that DIY tracker investing has become dramatically cheaper since 2010. Trading 212, InvestEngine, and Vanguard have driven all-in DIY costs to 0.22% or less. The 'much cheaper than active funds' angle is still true, but the 'simpler than DIY' premise gets weaker every year as DIY tooling improves.

The wrappers themselves haven't changed: a robo-advisor inside an ISA is still tax-free, the £20,000 annual ISA allowance applies the same way, and FSCS protection works the same as any other UK investment platform (£85,000 per provider on the cash element, and underlying investments are held in nominee accounts segregated from the platform's own balance sheet). The robo wrapper itself does not change the underlying tax or protection regime in any meaningful way.