Insights for Savers

Understanding ISA transfer rules

move your savings safely without affecting your allowance

Savings 2 min read 21/04/2026

Quick answer

You can transfer both current-year and previous-year ISAs between providers without affecting your annual ISA allowance, provided you follow the official transfer process. Never withdraw the money yourself, as doing so may break the tax-free wrapper. Aldermore can help you safely transfer your ISAs while keeping all contributions tax-free.

 

Why ISA transfer rules matter

ISA transfers are governed by clear rules set by HMRC. Following them ensures:

  • Your savings remain tax-free
  • Your annual ISA allowance is preserved
  • You avoid penalties or interest loss

 

Transferring current-year ISA contributions

  • You can only contribute to one Cash ISA per tax year at a time.
  • To move this year’s contributions to a new provider without affecting your allowance, you must use the ISA transfer service.
  • Partial transfers are possible, depending on your provider.
Two people sitting together on a grey sofa in a modern living room, using a laptop, with cushions and a stack of firewood visible near a large window.

Transferring previous-year ISAs

  • Previous years’ ISAs can be transferred freely without impacting your current-year allowance.
  • This is ideal if you want to consolidate multiple older ISAs into a single account for simplicity.

Type of ISA

Impact on current-year allowance Notes
Current-year ISA Yes, if withdrawn incorrectly Must use transfer process
Previous-year ISA   No Can move at any time

 

Common mistakes to avoid

  • Withdrawing ISA funds yourself before transferring
  • Failing to notify the new provider to initiate a proper transfer
  • Assuming all ISAs can be transferred instantly, some fixed-term accounts have restrictions

 

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Frequently asked questions

Can I transfer multiple old ISAs at once?

Yes, you can consolidate several previous-year ISAs into one account without impacting your allowance.

Does transferring break the tax-free status?

No, provided you use the official ISA transfer process and do not withdraw the money yourself.

Are there limits to how often I can transfer?

There’s no legal limit on transferring previous-year ISAs. Current-year contributions can be transferred once per tax year.

 

Discover Aldermore ISA transfers

At Aldermore, we make it straightforward for savers to move ISAs safely. You can consolidate old ISAs or transfer current contributions while keeping everything tax-free.

Find out more about Aldermore ISA transfers today.

 

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