Investment guide
Understanding investment fees and charges
Investment costs can look small as percentages, but they reduce the return you keep. To compare investments properly, it helps to understand platform charges, fund charges, transaction costs, advice fees and any one-off costs together rather than looking at one headline number.
What you may pay
Investment costs can come from several different places.
The FCA's current consumer-investment disclosure rules distinguish between one-off entry and exit costs, ongoing costs, transaction costs and performance-related charges.
| Cost | What it can cover |
|---|---|
| Platform or account charge | The cost of holding investments on an investment platform or within an account such as an ISA. |
| Fund charge | The ongoing cost of managing an investment fund, normally deducted from the fund itself. |
| Transaction costs | Costs associated with buying and selling investments within a fund or portfolio. |
| Dealing fees | Charges that may apply when you personally buy or sell shares, funds or other investments through a provider. |
| Entry or exit costs | One-off costs that may apply when entering or leaving certain investments. |
| Advice charge | The cost of regulated financial advice, which is separate from the investment product and fund costs. |
Long-term effect
Small annual differences can become meaningful over time.
If two investments achieve the same gross return but one costs more each year, the lower-cost option will leave more of that return with the investor, all else being equal.
The FCA requires consumer investment information to explain that costs and charges reduce potential investment growth.
A cheaper product can still be poor value if it is unsuitable, poorly diversified or does not provide the service or functionality you need.
Making a fair comparison
Look at the total cost, not just the cheapest-looking percentage.
A useful comparison should identify all recurring and one-off costs that apply to the investment arrangement.
Account/platform fee
Is it a percentage, a fixed fee, or a combination? Does it reduce at higher investment values?
Underlying fund cost
What does the investment manager charge for running the fund or portfolio?
Transaction costs
How much trading activity takes place and what costs arise from it?
Other fees
Are there dealing charges, exit fees, performance fees or other costs that are easy to overlook?
Advice costs
Investment charges and financial advice charges are different.
An adviser may charge for initial advice, implementation and/or ongoing financial planning. These charges are separate from the costs of the investment platform and underlying funds.
The FCA's disclosure rules specifically require investment information to make clear that the person selling or advising on an investment may charge additional costs.
Understanding the service behind a fee makes it easier to judge whether the overall arrangement represents value rather than simply comparing percentages.
Value, not just price
The lowest-cost investment is not automatically the most appropriate.
Cost is important because it directly affects net returns. But suitability also depends on the investment strategy, diversification, risk level, tax wrapper, service, administration and the investor's objectives.
A more expensive fund would need to justify the additional cost through the investment approach or service being provided. Equally, paying less for something that does not meet your needs is not necessarily good value.
What to review
Know what you are paying and whether the arrangement still earns its place.
Total annual cost
Combine platform, fund, transaction and advice costs rather than viewing each separately.
What has changed?
Providers, funds and advice arrangements can change their charging structures over time.
Service received
Check whether the service and financial planning support being provided still match what you are paying for.
Investment suitability
Low fees are not enough if the portfolio no longer fits your risk, timeframe or objectives.
Investment review
Want to understand what your current investments are really costing?
A personal review can bring together platform, fund, transaction and advice costs and consider them alongside the investment strategy and service being provided.
Book a conversationThis guide is for general information only and is not personal financial, investment or tax advice. Investment charges vary by provider and product and can change. Investments can fall as well as rise and you may get back less than you invest. Content checked against current FCA guidance on 16 September 2026.