The Cost of Advice on a Lump Sum

A lump sum changes things. Whether it arrives as an inheritance, the sale of a business, a redundancy payment, a pension tax-free lump sum or simply years of saving finally deployed, a large single amount of money raises questions that day-to-day finances do not. It also attracts a specific kind of advice, and a specific set of fees. Knowing what that advice should cost, and when it earns its keep, is the difference between a windfall well handled and one quietly eroded.

This guide sets out what it costs to get advice on a lump sum in 2026: the fee structures on offer, the actual pounds-and-pence figures at different sums, how to keep the charge proportionate, and when paying for advice more than pays for itself. It is information rather than personal advice, and the value of any investment can fall as well as rise, but it will give you a clear sense of what a fair price looks like.

Why a lump sum is different

A lump sum concentrates decisions. Instead of drip-feeding small monthly savings, you are deploying a large amount all at once, and the choices you make at the outset, how much to shelter from tax, how to invest it, how quickly to put it to work, shape the outcome for years. Get the structure right and the money works hard and tax-efficiently; get it wrong and a single early mistake can cost far more than any fee.

The source of the money shapes the advice too. A pension tax-free lump sum brings questions about how the rest of the pot is drawn and taxed; a redundancy payment may need to bridge a gap until new work or retirement; an inheritance often arrives at an emotional moment when clear thinking is hardest. Each carries its own rules and pressures, and part of what you are paying an adviser for is the experience of having steered many others through the same passage. The fee buys judgement about your particular windfall, not a generic template.

Tax is usually the heart of it. A large sum sitting in an ordinary account is exposed to income tax on the interest and capital gains tax on any growth, whereas the same money moved into an ISA or pension can grow largely tax-free. But the allowances are annual and limited, £20,000 into an ISA and up to £60,000 into a pension each tax year, so sheltering a big lump sum is a multi-year exercise that rewards planning. This is precisely the kind of work advice is designed for.

How advice is charged

Advice on a lump sum is usually charged in one of three ways, and the right one depends heavily on the size of the sum. The larger the amount, the more a percentage fee can drift away from the actual work involved, which is why fixed fees come into their own at the top end.

• Percentage of the sum, commonly 1%–3% initially to plan and invest the money, then 0.5%–1% a year for ongoing management. Simple, but the pounds cost climbs with the amount.
• Fixed fee, a set price, perhaps £2,000–£5,000, for the up-front work regardless of the sum. Often the fairest option on a large lump sum.
• Hourly rate, £150–£350 an hour for a defined, one-off piece of work, useful if you want advice on structure but intend to manage the money yourself.

Many firms also tier their percentage, so the rate falls as the sum rises, perhaps 3% on the first £50,000, then 2%, then 1%. Always ask for the tiered schedule rather than assuming the headline rate applies to the whole amount. Our guide to what a financial adviser costs shows how to hold each structure to the same standard.

Timing is part of the cost too. A large sum does not have to be invested all at once; an adviser may recommend feeding it into the market in stages, known as phasing, to smooth out the risk of buying at an unlucky moment. That is a service in itself, and it is worth checking whether it is included in the initial fee or treated as extra work. Equally, some of the up-front charge reflects moving money into tax shelters across more than one tax year, since the ISA and pension allowances reset each April. The fee, in other words, often buys a multi-year plan rather than a single afternoon’s work, a distinction worth clarifying before you agree it.

The cost in real numbers

Percentages are slippery, so it helps to see the pounds. The table below shows roughly what advice might cost on lump sums of different sizes, using a typical tiered initial fee and a mid-market ongoing charge. These are illustrative ranges, not quotes, but they give you a benchmark to weigh any proposal against.

Notice how, at the top of the table, the percentage model quietly gives way to a fixed fee. On a £1 million lump sum, 3% would be £30,000, far more than the work justifies, so a fair adviser will propose a fixed sum or a steeply tiered rate instead. If yours does not, that is your cue to ask why. Larger sums often sit within a broader wealth management relationship, where the fee should reflect the whole picture rather than a flat slice of the total.

Keeping the fee proportionate

The golden rule with a lump sum is that the fee should be proportionate to the work, not just a mechanical percentage of the money. Investing £500,000 is not five times more work than investing £100,000, and a fair adviser recognises that. A few steps keep the charge honest.

• 1

  Ask for the fee in pounds

  Insist on the initial and ongoing cost expressed in pounds at your actual sum, not just a percentage. It makes the true price impossible to hide.

• 2

  Request the tiered schedule

  Find out whether the percentage falls as the sum rises, and at what thresholds. A flat rate on a large amount is rarely the fairest deal.

• 3

  Consider a fixed fee

  On a substantial lump sum, ask whether a fixed fee would be cheaper than the percentage. Advisers expect the question and often say yes.

• 4

  Separate advice from management

  Decide whether you want one-off advice on structure or ongoing management. You only pay the recurring fee for the latter.

• 5

  Check what the ongoing fee buys

  Make sure any yearly charge funds genuine reviews and tax work, not just an annual statement: the test is service for price.

When advice pays for itself

The fee is only half the equation; the other half is what the advice saves or earns you. On a lump sum, the value tends to concentrate in a few high-stakes areas where a small improvement dwarfs the cost. Tax is the big one, sheltering money across ISA and pension allowances, harvesting capital gains within the annual exemption, and avoiding an unnecessary tax bill can save many times the fee on a large sum.

An inheritance is a case in point. A lump sum inherited today may sit fully inside your own estate for inheritance tax purposes, where it could eventually be taxed at 40% above the frozen £325,000 nil-rate band. Advice on how to hold, spend or gift it can protect a slice of that for the next generation. The same logic applies to a pension lump sum, a business sale or a redundancy payment, the more tax and complexity involved, the more advice tends to earn its fee. Our guide on whether an adviser is worth it weighs this up in full.

Behaviour matters as much as tax. A large sum arriving all at once is unsettling, and the temptation is either to freeze, leaving it languishing in a low-interest account where inflation erodes it, or to act rashly, chasing a tip or piling into a single fashionable asset. A good adviser earns much of their fee simply by imposing calm and structure: setting the money against your actual goals, spreading the risk, and keeping you invested through the inevitable wobbles. The value of avoiding one panicked decision during a market fall can, on a large sum, dwarf a decade of fees, and it never shows up on any invoice.

When you might do it yourself

Advice is not compulsory, and for a smaller, simpler lump sum you may reasonably handle it yourself. If you are confident using your ISA allowance, comfortable choosing a low-cost investment and untroubled by tax complications, a modest sum can be deployed without paying for advice: our guide to how much you need to start investing is a good starting point. The calculus shifts, though, as the sum grows, the tax gets thornier or the stakes rise. For a large windfall, an inheritance or a pension lump sum, the value of getting the structure right usually far outweighs the fee, and the free first meeting costs you nothing but an hour to find out.

Common questions on fees & costs