What Is an ISA Transfer?
An ISA transfer is the formal process used to move money or investments that are already held within an ISA to another ISA.
You might transfer an ISA because you want to change provider, move only part of an existing balance or, where the rules allow, change the type of ISA in which the money is held.
The important feature is that the transferred money remains within the ISA system. When an ISA is transferred correctly, its existing ISA tax treatment is preserved and the amount transferred is not treated simply as a new contribution.
This makes a transfer fundamentally different from withdrawing money from an ISA yourself and then paying it into another account.
A useful way to think about the distinction is:
Contribution: money outside an ISA → ISA
Transfer: ISA → ISA
Withdrawal: ISA → money outside the ISA
Suppose you have £25,000 accumulated in an ISA and want to move it to another provider. If the new provider accepts the transfer, you would normally use its ISA transfer process rather than withdrawing the £25,000 into your bank account first.
The providers then arrange for the ISA money to move between them.
Withdrawing the money yourself can change how a later payment into an ISA is treated, so it should not be assumed to have the same effect as a formal transfer.
If you are new to the wider ISA structure, What Is an ISA and How Does It Work? explains how the tax-efficient wrapper works before looking at specific transfer rules.
How Does an ISA Transfer Work?
An ISA transfer normally starts with the provider you want to move to, rather than the provider currently holding your money.
You choose an ISA that accepts the type of transfer you want to make and ask the receiving provider to arrange it. The two providers then handle the movement of the ISA money or investments between them.
The ISA Transfer Process
Although the administration can vary between providers, an ISA transfer generally follows the same basic sequence.
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Choose the receiving ISA
Check that the new provider accepts transfers from your existing ISA type and review any relevant account terms, charges or restrictions.
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Request the transfer
Contact the provider you want to move to and complete its ISA transfer process, specifying the ISA you want to move and whether the transfer will be full or partial where that option is available.
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The providers arrange the move
The receiving provider contacts your existing provider and the two ISA managers arrange for the relevant money, investments and account information to be transferred between them.
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The transfer completes
The transferred amount arrives with the receiving provider while remaining within the ISA system rather than being treated as money you withdrew and contributed again.
If your intention is to move existing ISA money while preserving its ISA status, use the receiving provider’s formal ISA transfer process rather than withdrawing the money yourself.
Not every provider has to accept every type of ISA transfer. Before opening a new account specifically to receive an existing ISA, check that the provider accepts the transfer you want to make.
The account terms can also affect the process. There may be transfer charges, restrictions or consequences for moving money from a fixed-term or notice account before the relevant period has ended.
The administrative details can therefore vary, but the underlying principle remains the same: the providers move the ISA between them rather than paying the money to you first.
Do ISA Transfers Affect Your ISA Allowance?
A formal ISA transfer does not normally use additional annual ISA allowance.
The money or investments being moved are already within the ISA system. Transferring them correctly changes where they are held rather than turning the transferred amount into a fresh contribution.
This means an ISA can potentially be transferred even when its accumulated value is greater than one year’s annual allowance.
For example, suppose you have £40,000 in an ISA built up over several tax years. If you formally transfer the full £40,000 to another provider, the transfer is not treated as though you have made a new £40,000 ISA contribution.
The same principle can apply to money contributed during the current tax year.
Suppose you contribute £8,000 to an ISA and later formally transfer that £8,000 to another provider. The transfer does not mean that you have now contributed £16,000.
The original £8,000 remains part of your subscription history for the tax year; it has simply moved to another ISA.
Equally, transferring the £8,000 does not by itself erase the original subscription and restore £8,000 of unused allowance.
The distinction is:
A formal transfer does not normally create another contribution, but it does not simply cancel the contribution you originally made either.
If you want a fuller explanation of what counts towards the annual limit, ISA Allowance Explained covers the allowance separately.
Can You Transfer Part of an ISA?
For ordinary adult ISAs, you can generally transfer all or part of the ISA, subject to the applicable ISA rules and the providers accepting the transfer.
This can apply to ISA money accumulated in previous tax years as well as current-year subscriptions.
For example, suppose you have £30,000 held within an ISA and want to move £10,000 to another provider while leaving £20,000 where it is.
If the providers support that partial transfer, the £10,000 can move through the formal ISA transfer process while the remaining £20,000 stays within the original account.
The £10,000 is not treated as a new £10,000 contribution simply because it moves to the receiving ISA.
Partial transfers can also be possible for current-year subscriptions in ordinary adult ISAs. The precise options available still depend on the ISA types and providers involved, so it is important to check that the receiving provider accepts the transfer you intend to make.
Lifetime ISAs and Junior ISAs have additional transfer rules and should not automatically be assumed to follow the same partial-transfer principles.
Can You Transfer Between Different Types of ISA?
Under the rules applying before 6 April 2027, transfers can generally take place between the same or different types of ordinary adult ISA where the receiving provider accepts the transfer.
For example, money held in a Cash ISA can potentially be transferred to a Stocks and Shares ISA using the formal transfer process rather than being withdrawn and contributed again.
Changing ISA type is more significant than simply changing provider because it can change what happens to the money.
Moving from cash into a Stocks and Shares ISA, for example, means the money may become exposed to investment risk. Its value can rise or fall, whereas cash savings have different characteristics.
Cash ISA vs Stocks & Shares ISA explains those differences in more detail.
There is also a forthcoming change to the permitted transfer routes.
This means a transfer route that is available before 6 April 2027 may not necessarily remain available afterwards.
The basic transfer principle does not change: existing ISA money can be moved through the formal transfer system where the applicable rules permit it. What can change is which types of ISA the money is allowed to move between.
What Happens When You Transfer a Stocks and Shares ISA?
A Stocks and Shares ISA can contain investments rather than simply cash, so transferring one can involve an additional question: what happens to the investments themselves?
Depending on what the providers support, investments may be transferred directly or they may need to be sold before the transfer takes place.
Transfer the investments directly
If the receiving provider can hold your existing investments, they may be moved and re-registered with the new provider without first being sold. This is often called an in-specie transfer.
Sell and transfer as cash
If the receiving provider cannot accept the investments, some or all of them may need to be sold within the ISA. The resulting cash can then be transferred directly between the ISA providers and, if appropriate, reinvested through the new account.
Both approaches can form part of a formal ISA transfer. The important difference is whether the investments themselves move or are sold so that cash can be transferred instead.
An in-specie transfer can allow you to remain invested rather than selling simply because you are changing provider. However, the receiving provider needs to support the investments concerned, and there may still be a period during which you cannot trade them while the transfer is being processed.
A cash transfer has a different practical consequence.
If investments are sold before the transfer and you intend to reinvest after it completes, you may spend some time out of the market. Investment prices can rise or fall during that period, so the amount required to buy back the investments may differ from the amount received when they were sold.
Before transferring a Stocks and Shares ISA, it is therefore useful to establish whether the new provider can accept your existing investments and whether the transfer will take place in specie, as cash or using a combination of the two.
How Long Does an ISA Transfer Take?
The expected transfer time depends on the type of ISA being moved.
Under the current ISA transfer guidance:
Cash ISA to Cash ISA transfers should take no longer than 15 working days.
Other types of ISA transfer should normally take no longer than 30 calendar days.
Investment transfers can involve additional administration, particularly where investments need to be sold or re-registered with a new provider.
The expected transfer time should also be distinguished from the terms of the account you are leaving.
For example, a fixed-term or notice Cash ISA may have restrictions, interest penalties or other consequences if you transfer before maturity or before completing the required notice period.
A transfer that can administratively be completed within the expected timetable is therefore not necessarily a transfer that can be made immediately without affecting the terms of your existing account.
Check both the expected transfer process and the terms of the ISA you are leaving before starting.
Do All ISAs Follow the Same Transfer Rules?
No. The general transfer principles apply widely, but some ISA types have additional rules that can materially affect what can be moved and how the transfer must be completed.
ISA Types With Additional Transfer Rules
Do not automatically apply the ordinary adult ISA transfer rules to every ISA. Some account types have additional requirements.
Lifetime ISA
Transfers between Lifetime ISA providers can preserve the Lifetime ISA wrapper when completed correctly, but moving Lifetime ISA money to another type of ISA can have withdrawal-charge consequences. Additional rules also apply to current-year Lifetime ISA payments.
Junior ISA
Junior ISAs have additional restrictions around transfers, including rules affecting current-year subscriptions and transfers between Junior ISAs of the same type.
Flexible ISA
A flexible ISA can be transferred, but outstanding withdrawals and replacement rights can matter. In particular, replacement rights relating to previous-year money may be affected if the original account is closed before the money is replaced.
If a Lifetime ISA is involved, Lifetime ISA Explained covers its wider contribution, bonus and withdrawal rules.
For Junior ISAs, Junior ISA Explained explains how the account works and the restrictions applying to money held for a child.
If you have made withdrawals from a flexible ISA that you intend to replace, check the position before transferring or closing the original account. Flexible ISAs Explained covers the replacement rules in more detail.
The practical lesson is not that these ISAs cannot be transferred. It is that their additional rules should be checked before assuming that an ordinary adult ISA transfer process applies unchanged.
What If Your ISA Transfer Is Delayed?
If an ISA transfer takes longer than the expected timetable, contact the provider handling the transfer and ask for an update.
It can help to have the date you requested the transfer, any transfer reference and relevant correspondence available so the provider can investigate where the delay has occurred.
If the problem is not resolved and you are unhappy with the provider’s response, you can use its formal complaints process. If you remain dissatisfied after the provider has dealt with the complaint, the Financial Ombudsman Service may be able to consider the matter.
A delayed transfer does not change the fundamental distinction between a transfer and a withdrawal.
If your intention is still to move existing ISA money while preserving its ISA status, avoid trying to accelerate the process by withdrawing the money yourself. Doing so can turn what was intended to be a transfer into an ordinary withdrawal and affect how a later payment into another ISA is treated.
What Should You Check Before Transferring an ISA?
The transfer process itself may be relatively straightforward, but there are several details worth establishing before you give the instruction.
These checks do not determine whether transferring is the right financial decision for you. They help establish what will actually happen if you decide to move the ISA.
Different providers can offer different interest rates, investment choices, charges, access arrangements and account features. Those differences can be relevant when comparing accounts, but the existence of another ISA does not by itself mean that transferring is beneficial.
The purpose of the transfer process is simply to allow eligible existing ISA money to move without unnecessarily losing the tax treatment it has already built up.
Conclusion
An ISA transfer allows existing ISA savings or investments to move from one ISA to another while remaining within the ISA system.
The process normally starts with the provider you want to move to. The providers then arrange the transfer directly, and the amount moved does not normally become a new ISA contribution simply because it changes provider.
Depending on the accounts involved, you may be able to transfer all or part of an ISA, change ISA type or move investments either directly or as cash. Transfer times, charges and restrictions can also vary, while Lifetime ISAs, Junior ISAs and flexible ISAs have additional rules.
The most important distinction is the simplest:
A transfer moves money from ISA to ISA. Withdrawing the money yourself takes it outside the formal ISA transfer process.
If your intention is to preserve the existing ISA status of money you are moving, use the receiving provider’s formal ISA transfer process rather than treating the move as an ordinary withdrawal and new contribution.
