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Find the perfect fit

Man moves puzzle piece to find the perfect fit for his tax-free savings.

Find the perfect fit for your tax-free savings

Make the most of your tax-free allowance and explore what the upcoming ISA changes mean for you and your money.

Piecing together the ISA puzzle

March and April are busy times for savers looking to make the most of their tax‑free allowance. With changes on the horizon, we're here to help you piece together your tax-free puzzle and make the most of your money. Whether you’re a long‑standing ISA saver or exploring your first account, understanding the changes can help you choose the option that fits you best.

Topping up an existing ISA account

If your account allows deposits and you plan to top up your ISA, you’ll need to do it in time for the payment to clear so it counts towards this year’s allowance. This means all payments must be received by 4.30pm on Thursday 02 April.

Opening a new ISA account

If you're opening a new ISA and want to fund it electronically, the cut off time to open the account is 12pm on Thursday 02 April. This is so we can make sure your account is set up before the bank holiday weekend.

Once it's set up, you'll have until 4.30pm to fund the account electronically.

Understanding the upcoming changes

From April 2027, the government will introduce a new £12,000 annual limit on Cash ISA contributions for savers under the age of 65, a reduction from the current allowance of £20,000.

Although the overall ISA allowance will remain at £20,000, the remaining £8,000 must be placed into an investment product such as a Stocks and Shares ISA, Innovative Finance ISA or Lifetime ISA.

Savers aged 65 and over will keep the full £20,000 Cash ISA limit, creating a new, age-based system.

An important tax year for under 65s

The 2026/27 tax year still operates under the current rules, meaning savers under 65 can put up to £20,000 entirely into a Cash ISA until 05 April 2027.

This provides a final tax year for those who prefer low risk, cash-based saving to maximise tax-free interest before the new restrictions apply.

These changes reflect the government’s intention to push working-age savers toward investment-based products, encouraging a broader ‘investment culture’ to support long-term economic growth.

Alongside this, rules preventing transfers from Stocks and Shares ISAs back into Cash ISAs will also come into effect, designed to stop savers side-stepping the lower cash limit.

Further changes that will impact savers

Savings tax rates are also set to increase from April 2027. This means making the most of your tax-free savings allowance in the final pre-change tax year is even more important.

Accounts to open in branch

Cash ISAs

Cash ISAs

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Cash ISAs available to open in branch

We have a range of Cash ISAs available with different levels of access to your money.

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Fixed Rate Cash ISAs

Fixed Rate Cash ISAs

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Fixed Rate Cash ISAs available to open in branch

View the range of Fixed Rate Cash ISAs available to open in branch.

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A Cash ISA is a savings account that allows you to earn tax-free interest. This means you won't have to pay UK income tax or capital gains tax on the interest you earn, as long as you don’t exceed your ISA allowance.

Your annual ISA allowance is the amount you can save in your ISA(s) without paying tax on the interest you earn. Your allowance for the 2025/2026 and 2026/2027 tax year is £20,000.

When transferring a Cash ISA, you must request an official ‘ISA transfer’ to avoid losing the tax-free status of your savings. It may be possible to transfer used ISA allowances into a Marsden Building Society Cash ISA, depending on the terms and conditions of the account.

If you’d like to transfer your ISA funds to us, you can download an ISA Transfer form here or contact your local branch to speak to our team.

Once the account has been opened, you can manage it in branch, or register for eSavings to view the account online.

Additionally, our online savings accounts can be opened and managed online, subject to availability.

Whether or not you can withdraw from a Cash ISA depends on the type of ISA you have:

  • For a Branch Cash ISA, you can withdraw your funds whenever you need. However, notice accounts will require a set notice period before making a withdrawal, as per the terms of the account.  
  • If you have a Flexible Cash ISA, your remaining tax-free allowance will not be reduced with each withdrawal.
  • With a Fixed Rate Cash ISA, partial withdrawals are not allowed during the fixed term. If you close the account before maturity, there will be an interest penalty.
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