Most investors compare platforms on the headline annual charge and stop there — but a platform's true cost often only becomes visible at the edges: when leaving, when dealing, or when doing something slightly outside the ordinary flow of buying and holding funds. These less visible charges rarely change the day-to-day cost of investing, but they can add up to a meaningful sum at exactly the moments an investor is least able to avoid them, such as when transferring a pension or closing an account.
Exit fees
An exit fee (sometimes called a transfer-out fee or account closure fee) is charged when an investor moves their holdings away from a platform, either to another provider or by withdrawing entirely. These fees are typically charged per account or per holding, meaning an investor with several funds in an ISA could be charged multiple times to leave a single platform.
Why exit fees exist
Platforms frame exit fees as covering the administrative cost of processing a transfer, particularly an "in-specie" transfer where the actual fund holdings (rather than cash) are moved to the new provider. In practice, exit fees can also act as a mild deterrent against switching, since a fee charged only on the way out is easy to overlook when first choosing a platform.
What to check before opening an account
- Whether the exit fee is a flat amount per account or charged per individual fund holding.
- Whether the fee differs for a full account closure versus a partial transfer.
- Whether the receiving platform will contribute towards or refund exit fees as part of a switching incentive.
Transfer-out charges and timing
Separately from a flat exit fee, some platforms take time to process a transfer, during which the underlying investments may be moved to cash rather than transferred in-specie. This creates a period of being "out of the market", during which the value of the transferred holdings does not track investment markets at all. This is a cost in the sense of lost potential growth (or avoided loss) during the transfer window, even though no fee is directly charged for it. The step-by-step guide on switching investment platforms covers how to minimise this time out of the market.
Dealing fees
Many platforms charge a fee each time an investor buys or sells an investment. This is frequently structured differently for funds versus shares and exchange-traded funds (ETFs):
| Trade type | Typical fee structure (illustrative) |
|---|---|
| Open-ended fund (unit trust/OEIC) purchase or sale | Often free, or a small flat fee |
| Share/ETF/investment trust trade | Commonly £1.50–£12 per trade, sometimes discounted for regular investing |
| Regular investment scheme (monthly direct debit) | Often discounted or free even for shares/ETFs |
An investor who trades frequently, or who tops up manually rather than using a regular investment scheme, can rack up dealing charges that meaningfully add to the platform's headline percentage or fixed fee.
Other charges worth checking
Foreign exchange fees
Funds or shares priced in a foreign currency may incur a currency conversion charge, typically a small percentage of the transaction value, on top of the dealing fee itself.
Inactivity fees
A small number of platforms charge a fee if no trading activity occurs within a set period, which can catch out long-term "buy and hold" investors who deliberately don't trade often.
Paper statement or postal charges
Some platforms charge for paper correspondence, certificated (non-electronic) holdings, or CHAPS payments, which are unlikely to apply to most digital-first investors but are worth ruling out.
SIPP-specific charges
SIPPs can carry additional charges for setting up income drawdown, each withdrawal once in drawdown, or transferring a pension in specie rather than as cash. These are covered in more detail in the dedicated article on SIPP platforms for larger pots.
A worked hypothetical example
Suppose an investor holds a portfolio of six fund holdings worth £40,000 across an ISA on a hypothetical platform, and decides to transfer to a new provider:
- Exit fee: £25 per holding × 6 holdings = £150
- Time out of the market while assets are converted to cash and re-invested: roughly two weeks, during which the £40,000 does not participate in market movements
- New platform's welcome offer: covers up to £100 of exit fees
In this hypothetical case, the investor pays a net £50 in exit fees after the welcome offer, plus bears the (unquantifiable in advance) risk of market movements during the transfer window. Compared with the ongoing annual saving from a lower percentage fee on the new platform — say £120 a year on a £40,000 pot moving from 0.30% to 0.00%... more realistically from 0.45% to 0.15%, saving £120 a year — the one-off £50 cost is recovered well within the first year, illustrating why one-off exit costs are usually worth weighing against the ongoing annual saving rather than treated as a reason to avoid switching altogether.
Charges specific to certain account or holding types
Certificated and paper-based holdings
A small number of investors still hold certificated shares (physical share certificates rather than electronic holdings), typically from older direct shareholdings rather than modern platform-based investing. Moving these onto a platform, or transacting on them, can attract higher fees than standard electronic dealing, and some platforms charge extra simply to accept certificated stock at all.
Corporate action charges
Where a company an investor holds shares in undergoes a rights issue, takeover, or other corporate action, some platforms charge a processing fee to handle the resulting paperwork and elections. This is more relevant to direct share investors than fund investors, since funds absorb corporate actions on the underlying holdings internally, but it's worth knowing about for a portfolio that mixes funds with individual shares.
Regular withdrawal or income payment fees
Some platforms charge a small fee each time a regular income payment is set up or processed from a SIPP in drawdown, or from an income-focused GIA. Since these payments often recur monthly for years, even a modest per-payment charge can add up meaningfully over a long retirement.
Minimum account charges
A few platforms apply a minimum monthly or annual charge regardless of portfolio size, which functions similarly to a fixed fee but is sometimes described separately in the fee schedule as an "account minimum" rather than a headline platform fee — worth checking specifically for a very small or newly opened account.
Why these charges are easy to miss when comparing platforms
Platform comparison tables, whether published by the platforms themselves or by independent comparison sites, tend to focus on the headline annual charge because it's the figure that applies to the largest number of users, most of the time. Charges that apply only at the point of leaving, or only in specific circumstances like drawdown or a corporate action, are structurally less prominent in marketing material — not necessarily because they're being hidden deliberately, but because they only become relevant to an individual investor at a particular moment, often years after the account was first opened. This is precisely why it's worth reading the full charges document once at the outset, even though most of it may not feel immediately relevant.
How to find these charges before committing
- Read the platform's full charges document (not just the summary page), which is typically a separate PDF listing every fee category.
- Search specifically for "exit", "transfer out", "closure", and "inactivity" within that document.
- Check whether dealing charges differ for funds versus shares, and whether a regular investment scheme reduces them.
- If planning a pension transfer, check for any SIPP-specific drawdown or withdrawal charges even if not yet close to retirement.
How hidden costs interact with each other
It's worth noting that these charges don't always occur in isolation — an investor consolidating pensions in retirement, for example, might simultaneously encounter an exit fee from the old scheme, a drawdown set-up fee on the new one, and dealing charges as holdings are rearranged along the way. Adding these up as a single "total cost of the transition" rather than reacting to each charge separately gives a clearer picture of whether a move is genuinely worthwhile, and over what timeframe the ongoing savings would recover the combined one-off costs.
A note on regulatory disclosure requirements
UK platforms are required under regulatory rules to disclose their charges in a reasonably standardised way, including an illustration of the cumulative effect of charges over time for new customers in certain circumstances. This has improved transparency considerably compared with some historical practice, but disclosure requirements tend to focus on the charges that apply to the most common activities (holding and dealing) rather than exhaustively itemising every possible fee that could apply in an unusual circumstance, such as a specific type of corporate action or an in-specie transfer of an unusual asset type. This is one reason it remains worth reading a platform's full terms and conditions and charges schedule directly, rather than relying solely on a simplified summary, however well-intentioned that summary may be.
Why this matters for long-term fund investors
Because ISA and SIPP balances are typically built up over many years and moved between platforms relatively infrequently, hidden costs at the point of exit are easy to underestimate when first choosing a platform — they simply don't appear on a day-to-day statement. But an investor who never checks these charges may end up staying on an expensive platform for years simply to avoid a one-off exit cost that, on closer inspection, would have been recovered within months through lower ongoing charges elsewhere.
Key takeaways
- Exit fees, transfer-out charges, and dealing fees rarely appear in headline platform marketing but can add up meaningfully at key moments.
- Exit fees are often charged per holding, so an account with many funds can face a larger total exit cost than one with a single fund.
- Time spent "out of the market" during a transfer is a real, if unquantifiable, cost that a careful transfer process can help minimise.
- Dealing fees, foreign exchange charges, and SIPP drawdown charges are all worth checking in the full charges document before committing to a platform.
- A one-off exit cost is usually worth weighing against the ongoing annual saving from a cheaper platform, rather than treated as a reason to avoid switching entirely.