You can have as many ISA accounts as you like over your lifetime and even open and pay into multiple ISAs in the same tax year , but you must not put in more than Ā£20,000 in total across all your ISAs in one tax year (current UK adult allowance).

Quick Scoop

  • No hard limit on the number of ISA accounts you can hold.
  • From the 2024/25 tax year, you can pay into more than one ISA of the same type in the same year (e.g. two Cash ISAs, two Stocks & Shares ISAs).
  • The key restriction is the annual allowance : usually Ā£20,000 total per tax year across all your adult ISAs combined.
  • Lifetime ISAs are a special case: you can own more than one, but you can only contribute to one LISA per tax year , up to Ā£4,000 (which counts towards the Ā£20,000).

How many ISAs can I have?

Think of it in two layers:

  1. How many ISAs in total?
    • You can build up lots of old ISAs over the years with different providers. There is no maximum number.
  1. How many can I pay into this tax year?
    • You can now pay into multiple ISAs and multiple of the same type within a single tax year.
 * The only hard stop is the total you pay in must stay **within your annual ISA allowance**.

Quick examples

  • You could in one tax year do something like:
    • Ā£5,000 into a Cash ISA with Bank A
    • Ā£5,000 into a Cash ISA with Bank B
    • Ā£8,000 into a Stocks & Shares ISA with Platform C
    • Ā£2,000 into a Lifetime ISA with Provider D
    • Total = Ā£20,000, so thatā€™s fine.
  • What you canā€™t do is:
    • Put Ā£20,000 into one ISA, then another Ā£20,000 into a different ISA in the same tax year. That would be over your allowance.

Different ISA types (adult)

The main ISA types for adults are:

  • Cash ISA
  • Stocks & Shares ISA
  • Innovative Finance ISA
  • Lifetime ISA
  • (Plus some providers still talk about ā€œflexibleā€ features, but thatā€™s about how withdrawals work, not a separate type.)

Special rules for Lifetime ISAs

  • You can open more than one LISA over time, but you can only pay into one LISA per tax year , up to Ā£4,000.
  • That Ā£4,000 is part of your Ā£20,000 overall ISA limit, not on top.

Why people use multiple ISAs

Many savers now open multiple ISAs to:

  • Chase better interest rates on Cash ISAs.
  • Separate shortā€‘term savings (Cash ISA) from longā€‘term investing (Stocks & Shares ISA).
  • Use a Lifetime ISA for first home or retirement while still paying into other ISAs.

A simple way to think about it:

You can have lots of ISA pots , but each tax year youā€™re pouring from just one jug of money ā€“ your ISA allowance ā€“ and once that jug is empty, you stop for that year.

Mini HTML table (rules at a glance)

Question Answer (UK)
How many ISA accounts can I hold in total? Unlimited ā€“ you can hold as many ISAs as you like across different years and providers.
How many ISAs can I pay into in one tax year? As many as you like (including more than one of the same type), as long as total contributions stay within your annual allowance.
Current annual ISA allowance Typically Ā£20,000 total across all adult ISAs (not per ISA).
Lifetime ISA contributions Max Ā£4,000 per year into LISAs, and you can only contribute to one LISA per tax year; this Ā£4,000 is part of the Ā£20,000 overall limit.
Information gathered from public forums or data available on the internet and portrayed here.