Discovering that a cheaper equivalent fund or platform exists is only half the picture — the other half is working out what it would actually cost, in money, time, and potential tax consequences, to switch. Exit fees, transfer charges, time out of the market, and administrative friction can all offset some or all of the projected long-term saving, at least initially, and understanding how to weigh these one-off costs against ongoing savings is essential before deciding whether a switch is genuinely worthwhile.
The two different kinds of "switching"
It is worth distinguishing clearly between switching funds while remaining on the same platform, and switching platforms while keeping (or changing) the underlying funds, since the costs involved differ substantially between the two.
Switching funds on the same platform
Selling one fund and buying another within the same account is usually the simpler of the two, and on many platforms, switching between open-ended funds incurs no direct dealing charge, since fund dealing is very often free. However, selling a fund outside a tax wrapper (in a general investment account) realises any gain for capital gains tax purposes at that point, which is not the case for a like-for-like share class conversion within the same fund, discussed further below.
Switching platforms entirely
Moving an entire portfolio to a different platform is more involved, and can incur exit fees, a period where investments may be held in cash, and administrative delay, discussed in detail below.
Costs typically involved in switching platforms
Exit or transfer-out fees
Some platforms charge a fee for transferring holdings away, sometimes levied per individual fund or share holding transferred (for example, £25 per holding), which can add up meaningfully for a portfolio spread across many different funds. Other platforms charge no exit fee at all, so this is very much worth checking directly with the current provider before initiating a transfer.
Cash transfer versus in-specie transfer
A transfer can generally be carried out in one of two ways: a cash transfer, where existing holdings are sold, the resulting cash is moved to the new platform, and equivalent (or different) investments are bought again; or an in-specie transfer, where the actual investments are moved across "as is," without being sold and rebought. An in-specie transfer is generally preferable where available, since it avoids being out of the market during the transfer process and, within an ISA or SIPP, does not trigger a capital gains tax event (since there is no disposal for tax purposes inside these wrappers in any case). Not every platform combination supports in-specie transfer for every fund, however, particularly where the receiving platform does not offer the exact same fund or share class.
Time out of the market
A cash transfer necessarily involves a period — sometimes a few days, sometimes several weeks depending on the platforms and fund managers involved — during which the money is not invested at all, meaning it does not participate in any market movement (up or down) during that window. This is generally viewed as an unwanted, uncompensated risk rather than a cost that can be precisely quantified in advance, since the direction of the market during the transfer period cannot be known ahead of time.
Administrative time and complexity
Completing transfer paperwork, verifying identity, and monitoring the process to ensure it completes correctly all take time, and a transfer that is not carried out correctly (for example, an accidental cash transfer where an in-specie transfer was intended, or a partial transfer that leaves some holdings behind) can create further complications to unwind.
Capital gains tax considerations outside a wrapper
Where a portfolio is held in a general investment account rather than an ISA or SIPP, a cash transfer that involves selling existing holdings will realise any gain (or loss) for capital gains tax purposes at that point. The annual capital gains tax exempt amount is currently £3,000, with gains above this taxed at 18% for basic rate taxpayers or 24% for higher and additional rate taxpayers on investment gains. This means switching a large, long-held, unwrapped portfolio could potentially trigger a significant tax bill, which should be factored into the true cost of switching alongside any platform exit fees. Transfers within an ISA or SIPP do not trigger a capital gains tax event, since assets within these wrappers are already sheltered from CGT.
A worked hypothetical example
Suppose an investor holds £80,000 across four fund holdings on Platform A, paying a custody fee of 0.45% a year (£360), and is considering moving to Platform B, which charges a flat £150 a year — a potential saving of £210 a year.
| Cost item | Estimated one-off cost |
|---|---|
| Exit fee (Platform A, £25 per holding x 4) | £100 |
| Time out of market risk (cash transfer, no quantifiable figure but a real consideration) | Not precisely quantifiable |
| Administrative time | Non-financial, but a few hours typically |
| Total quantifiable one-off cost | £100 |
Against an annual saving of £210, the £100 one-off exit fee would be recovered from the saving in under six months, after which the £210 annual saving continues to accrue for as long as the investor remains on the cheaper platform. If an in-specie transfer is available (avoiding the time-out-of-market issue and any capital gains tax event on unwrapped holdings), this hypothetical switch looks straightforwardly worthwhile on cost grounds alone. This example uses illustrative figures only and is not a comparison of any specific real platforms, whose actual exit fees and charges vary and should always be checked directly.
When switching may not be worthwhile
- Where the projected annual saving is small relative to a substantial one-off exit fee, meaning it would take many years to recoup the cost of switching.
- Where an in-specie transfer is not available and a large unwrapped holding would realise a significant capital gains tax liability on a cash transfer.
- Where the receiving platform lacks a feature genuinely important to the investor (such as a specific fund range, research tool, or customer service standard), even if it is modestly cheaper.
- Where a portfolio is due to change significantly for other reasons in the near future anyway (for example, approaching retirement and drawing down a SIPP), reducing the number of years remaining over which any saving could accrue.
A simple framework for deciding
- Calculate the realistic annual saving from switching (platform fee difference, and any fund-level saving if funds will also change).
- Add up all quantifiable one-off costs (exit fees, any dealing costs on rebuying if a cash transfer is unavoidable).
- Divide the one-off cost by the annual saving to estimate a rough "payback period" in years.
- Weigh this payback period against the expected remaining holding period, and against any non-financial factors (features, service quality, an in-specie transfer being available or not) that matter independently of pure cost.
Switching within a pension (SIPP) context
Transferring a SIPP between providers follows broadly similar principles to an ISA or general investment account transfer, but can involve its own particular considerations. Some older pension arrangements carry valuable guarantees (for example, certain older-style pensions with guaranteed annuity rates) that would be permanently lost on transfer, regardless of any fee saving available elsewhere — this is a significant, non-reversible consideration that goes well beyond a simple cost comparison, and is one reason transfers from certain older pension arrangements above a regulatory threshold value require the involvement of a regulated financial adviser before they can proceed. For a modern, straightforward SIPP without such guarantees, transfer principles are broadly similar to an ISA transfer: an in-specie transfer avoids being out of the market, and since SIPP assets already sit within a tax-advantaged wrapper, there is no capital gains tax event triggered by the transfer itself.
Transfer timescales
Pension transfers, particularly those involving older-style arrangements, older providers with less automated systems, or paper-based processes, can sometimes take considerably longer than a typical ISA transfer — occasionally several weeks to a few months in more complex cases — which lengthens any period of being out of the market during a cash transfer, reinforcing the general preference for an in-specie transfer wherever one is available and appropriate.
Keeping records during a transfer
Whatever type of account is being transferred, it is generally sensible to keep a clear record of the holdings, values, and any transfer reference numbers at the point a transfer is initiated, along with confirmation from both the outgoing and incoming platform once the transfer completes. This is particularly useful for reconciling that all intended holdings arrived correctly, and for retaining a record of acquisition costs for any unwrapped holdings, where capital gains tax calculations on a future disposal will depend on knowing the original cost basis of the investments involved.
Key takeaways
- Switching platforms can involve exit fees, potential time out of the market, and administrative complexity — all of which should be weighed against any projected ongoing saving before deciding to switch.
- An in-specie transfer (moving investments "as is") is generally preferable to a cash transfer where available, avoiding market timing risk and, within an ISA or SIPP, any tax event.
- Switching an unwrapped, general investment account holding via a cash sale can realise a capital gains tax liability, taxed at 18% or 24% above the £3,000 annual exempt amount, which should be included in the true cost of switching.
- A simple payback-period calculation — one-off cost divided by annual saving — gives a useful rough guide to whether a switch is likely to be worthwhile within a reasonable time frame.
- Switching may not be worthwhile where the saving is small relative to exit costs, where a large unwrapped capital gain would be triggered, or where a cheaper platform lacks a feature genuinely valued by the investor.
- Always check a specific platform's current exit fee schedule and transfer process directly, since these vary and change over time.