Wealth Managers vs Robo-Advisers vs DIY: Choosing the Right Approach

The investment advice spectrum

The choice of how to manage your investments has never been broader. At one extreme, a DIY investor can build a globally diversified portfolio of index funds via a low-cost platform for a total cost of 0.15-0.25% per year. At the other extreme, a discretionary wealth management service from a private bank or dedicated wealth manager can cost 1.5-2% per year and come with a dedicated client team, bespoke portfolio management, access to alternative investments, and coordinated estate and tax planning.

Between these extremes lies a spectrum: robo-advisers (automated, algorithm-driven, low cost), "guided" online platforms (some human overlay, ETF-based), and independent financial advisers (human advice, may or may not manage the portfolio directly). Choosing the right approach is one of the most consequential financial decisions an investor can make — not because one approach is inherently superior, but because the right choice depends heavily on individual circumstances.

Robo-advisers: what they offer and where they fall short

Robo-advisers emerged in the early 2010s and have since attracted billions of pounds from UK investors. The main UK platforms include Nutmeg (now part of JPMorgan), Moneyfarm, Wealthify, and Moneybox. (Wealthsimple withdrew from the UK in 2021, transferring its UK clients to Moneyfarm.) Their proposition is compelling in its simplicity:

Low fees: Total costs of 0.25-0.75% per year, including the platform fee and the underlying ETF charges. This compares very favourably with actively managed fund platforms (often 1-2% all-in).

Automatic rebalancing: The platform maintains the target asset allocation without the investor needing to act.

Tax-efficient wrappers: All the major UK robo-advisers offer ISA and SIPP wrappers, allowing investment within tax-efficient structures.

Low minimum investment: Most accept investments from as little as £500, making professional portfolio management accessible to mass-market investors.

Ease of use: Simple online interfaces, accessible on mobile, with clear progress dashboards.

Where robo-advisers fall short is equally important to understand:

No personalised advice. A robo-adviser asks about your risk tolerance and time horizon. It does not know about your pension, your property, your family's financial needs, your business interests, or your tax situation. It cannot give personalised financial advice — only a regulated financial adviser can do that.

No complex tax planning. If you are a non-domiciled individual, have offshore trust income, hold employee share options, are a business owner approaching exit, or are non-UK resident, a robo-adviser cannot help you. These situations require human expertise and cross-disciplinary planning.

No integration. Your robo-adviser portfolio exists in isolation. It does not know that you also have a SSAS pension, a buy-to-let portfolio, and an inherited offshore bond. The optimal investment decision for your overall wealth may be very different from what the algorithm selects in isolation.

Limited asset classes. Most robo-advisers invest in liquid public market ETFs. They do not access private equity, hedge funds, infrastructure, direct real estate, or other alternatives that may be appropriate for higher-net-worth investors.

Traditional wealth managers

Traditional wealth management — whether from a private bank (Coutts, Arbuthnot Latham, C. Hoare & Co.) or a specialist firm — typically offers discretionary portfolio management, where the manager makes day-to-day investment decisions within an agreed mandate, without needing to call the client for approval each time.

The proposition includes:

Bespoke investment management: Portfolios are individually constructed, not model portfolios. Direct equity holdings, private assets, structured products, and alternative investments may all feature.

Coordinated planning: Leading wealth managers integrate investment management with estate planning, tax planning, pension strategy, and protection planning. The investment portfolio is managed in the context of the client's full financial life.

Access to alternatives: Private equity, hedge funds, property funds, infrastructure — these asset classes are typically unavailable through retail platforms. Wealth managers can provide access to institutional-quality investment opportunities.

Human relationship: A dedicated client director who knows the client's circumstances and can exercise judgement.

The cost is substantially higher: 0.5-1.5% per annum in management fees, plus underlying investment costs. On a £1 million portfolio, this might be £10,000-£15,000 per year in fees, compared with £2,500-£7,500 for a robo-adviser.

Whether the fee premium is justified depends on whether the additional services — tax planning, estate planning, alternative investments, personalised advice — add value exceeding the cost. For straightforward situations, the premium is probably not justified. For complex situations, the outcome difference can easily exceed the fee differential.

The Independent Financial Adviser model

The IFA sits in a different position from both the robo-adviser and the wealth manager. An IFA's primary function is advice — often holistic advice across protection, pensions, mortgage, tax planning, and investments — with investment management referred out to a discretionary fund manager or managed via a platform.

The Independent versus Restricted distinction matters. An Independent IFA can recommend any product from the whole market. A Restricted IFA can only recommend from a defined panel of providers — they may be restricted to a particular insurer's products or a particular fund group. The FCA requires advisers to disclose which category they fall into.

For complex international situations — expat planning, non-dom status, cross-border pensions, QROPS, business owner exit planning — an Independent IFA with specialist international experience is often the most effective model. They are not invested in a particular investment platform or house style, and can recommend the optimal structure for the client's specific situation.

Fee structures for IFAs vary considerably:

• Percentage of assets under advice: 0.5-1% per year is common for ongoing advice;
• Fixed fee: A specified amount for a specific piece of work (e.g., a full financial plan: £2,000-£10,000 depending on complexity);
• Hourly rate: £200-£500 per hour for specialist advice.

The majority of IFA work is now fee-based following the Retail Distribution Review (2013), which banned commission on most investment products.

The cost-value analysis

The question of which model to choose ultimately comes down to a cost-value analysis. Robo-advisers win on cost for simple cases — a UK-resident saver with straightforward pension and ISA needs, a long investment horizon, and no complex tax position can arguably be as well served by a low-cost robo-platform as by an expensive wealth manager.

As complexity increases — business interests, overseas income, estate planning needs, alternative investments, pension complexity — the value added by human expertise grows. At sufficient levels of complexity, the outcome difference (in terms of tax saving, risk management, and investment access) can easily exceed the adviser fee. A specialist IFA who saves a non-domiciled client £50,000 in IHT through excluded property trust planning, and charges £5,000 for the advice, has provided tenfold value.

DIY investing is the cheapest option and can work very well for financially literate investors with time, knowledge, and simple financial lives. It fails when circumstances become complex, when human judgement is needed, and when the investor's time and expertise are better deployed elsewhere.

For internationally mobile clients

The choice for internationally mobile clients is almost always: human adviser with international experience. No robo-adviser can adequately serve a client who is non-UK-resident, has pension interests in multiple countries, holds foreign property, is non-domiciled, or has trust arrangements. The complexity of cross-border tax, treaty analysis, and multi-jurisdiction reporting requires specialist human expertise.

The ideal structure is typically: an Independent IFA (or specialist international wealth manager) who understands the full financial picture and coordinates with local tax advisers in the relevant countries. Global Investments brings this coordinated, international perspective.

This guide is for information only. Financial advice is regulated and should be provided by appropriately qualified advisers. Fees, products, and adviser qualifications should be independently verified.

How Global Investments can help

Global Investments offers independent wealth management and financial planning services for internationally mobile individuals, business owners, and high-net-worth families. We provide the full-picture coordination — investment management, pension planning, estate planning, tax structuring — that robo-advisers and mainstream wealth managers cannot. Contact us to discuss whether our service is appropriate for your situation.