An official ISA transfer moves money directly between providers and keeps it tax-free. Do not withdraw it to your bank account first. A straightforward transfer usually takes between 7 and 15 business days.
Move it officially, not through your bank account
An ISA transfer moves money already inside an Individual Savings Account between providers. It keeps the tax-free wrapper intact. Start with the provider receiving the money.
An official transfer is not a new ISA payment. It normally preserves tax-free interest and does not reduce the annual ISA allowance. Paying withdrawn money into another ISA is different. The exception is a Flexible ISA, where its replacement rules apply.
Four actions with different results
A renewal is not automatically a transfer. Your money stays in an ISA but may enter a fixed term that you would not choose today.
| Action | Uses ISA allowance? | Keeps tax-free wrapper? | Main practical risk |
|---|
| Official transfer to another provider | No | Yes | Old account exit charge |
| Same-provider product switch | No | Yes | New product may not accept transfers |
| Maturity renewal | No | Yes | Automatic new fixed term |
| Withdraw to current account | Yes, if repaid into an ISA | No | Allowance and lost tax shelter |
The most common mistake is withdrawing cash before the new provider starts the transfer.
The flexible ISA exception
A Flexible ISA lets you replace withdrawals in the same tax year without using extra allowance. However, this applies only where that provider's terms allow it. You must return the money before the tax-year deadline.
Current-year ISA subscriptions can be transferred. Both providers may allow partial transfers.
Full or partial transfer choices
A partial ISA transfer moves only some of the balance. The receiving product must accept it, and the old provider must also allow the remaining balance to stay open.
| Money being moved | Can it be partial? | What to check first |
|---|
| Current tax-year subscriptions | Yes, if both providers permit it | Receiving product rules and pending payments |
| Previous tax-year subscriptions | Usually, if provider permits it | Minimum balance and partial-transfer terms |
| Fixed-rate ISA at maturity | Depends on the product | Maturity options and exit penalty |
Moving into an existing cash ISA
You can transfer a Cash ISA into an existing Cash ISA if the receiving provider allows it. Check its AER, access terms, and whether the rate is variable. AER means the yearly rate after compound interest.
Also check whether it accepts transfers after account opening. Some accounts accept new money but reject transferred ISA balances.
Suppose you built up £8,000 in earlier tax years. Then you add £2,000 during the current tax year. Ask the new provider for a provider-to-provider transfer.
The money then stays within the tax-free wrapper. The move is not a new subscription, subject to both providers' transfer terms. If you withdraw £5,000 to your current account, different rules apply.
A later £5,000 payment into a new ISA normally uses your available ISA allowance.
The key exception is a Flexible ISA. Its rules may let you replace the withdrawal with the same provider. You must do this before the tax year ends.
Check maturity terms and track the transfer
Use an official transfer when moving an adult Cash ISA, especially near a fixed-rate maturity date. It protects tax-free status and normally leaves this year's allowance untouched. Check the exit charge before you apply, since it can outweigh a better rate. A transfer usually takes between 7 and 15 business days. Ask the receiving provider to start it, then confirm that the old ISA closed or reduced correctly.
Before moving a fixed-rate Cash ISA, check its maturity window and early withdrawal charge. The charge can be between 30 and 180 days' interest.
Delays usually have a clear cause
Cash ISA transfers should normally finish within 15 business days under industry transfer standards. Straightforward cases often take between 7 and 15 business days.
Delays often result from mismatched names or addresses. A missing account number can also delay the move. Pending interest, notice accounts, and fixed terms can cause delays too.
A closure instruction can also conflict with the transfer. Track the request with the receiving provider first. If its complaint process does not resolve the delay, the Financial Ombudsman Service may review an eligible complaint.
In practice, one wrong account number can delay an otherwise simple transfer.
A maturity switch needs two instructions
A provider's automatic renewal instruction and a transfer request can be separate actions. A fixed-rate ISA may roll into a new term, then charge an exit fee if you move it soon afterwards.
Cash ISA transfer route
1. Check rate, access and charges
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2. Open eligible receiving ISA
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3. Submit its transfer form
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4. Confirm completion
Before requesting an official ISA transfer, make a short written comparison. Do not choose on the headline rate alone. Check the receiving account's AER and whether its rate is variable or fixed.
Check how quickly you can access cash, as well as its notice period. Confirm that it accepts transfers from an existing Cash ISA.
For a maturing ISA, confirm the maturity date and default renewal option. Also check any penalty outside the maturity window.
These ISA transfer rules also matter for a same-provider move. A product may accept new subscriptions but reject transferred balances. Check whether your old account is a Flexible ISA.
Withdrawal replacement depends on that provider's own terms and on the tax-year deadline.
This guidance is less relevant if you are opening your first ISA with new money. It may also not fit if you need immediate access to all savings. Stocks and Shares ISA and Lifetime ISA transfers have different rules. Complex tax, benefits, or investment cases may need personal regulated financial advice.
Questions & answers
Can I transfer money between cash ISAs?
Yes, if the receiving provider accepts the transfer and you use its transfer process. An official move normally keeps tax-free status. It does not usually use your annual ISA allowance.
Can I transfer to an existing cash ISA?
Yes, but only where that existing account accepts transfers in. Check its terms before applying. Some products accept new money but reject transferred ISA money.
How long should a cash ISA transfer take?
A straightforward Cash ISA transfer normally takes between 7 and 15 business days. Incorrect personal details can make it take longer. A notice account or fixed-rate maturity issue can also delay it.
Can I move my ISA when a fixed rate ends?
Yes, and maturity can be the cheapest time to move. Some providers waive early-access charges then. Check the maturity date and give separate renewal instructions where required.
Will withdrawing money and reopening an ISA work?
It can work, but it is not an ISA transfer. The new payment normally uses annual ISA allowance. A Flexible ISA may allow replacement under the same provider's tax-year rules.
Further reading
If you want to learn more about this topic, these sources may interest you:
