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18 Month Fixed Rate ISA (Issue 28)
Rate
- Open with £1
- Fixed rate until 6th July 2026
- Withdrawals are permitted subject to 120 days loss of interest
- Tax-free savings
- Ideal for lump sum investments
- Apply Online
- Apply in Branch
Summary information
Account Name
18 Month Fixed Rate ISA (Issue 28)
What is the interest rate?
Tax-free refers to the contractual rate of interest payable, where interest is exempt from income tax. The tax information provided is based on the current law and HM Revenue & Customs practice, both of which may change. AER stands for Annual Equivalent Rate and shows what the interest rate would be if interest were paid and added to your account each year.
Annual interest
4.10% Tax-free pa/AER
(Fixed until 6 July 2026)
Interest is paid on: 6 January 2026 and 6 July 2026
Monthly interest
4.03% Tax-free pa/4.10%AER
(Fixed until 6 July 2026)
Interest is paid on: Last working day of each calendar month
Can Newcastle Building Society change the interest rate?
The interest rate for this account is fixed and will not change until the maturity date (6 July 2026). Please refer to point 6 of the Product Special Conditions for further details.
What would the estimated balance be on the maturity date (6 July 2026), based on a £1,000 deposit?
Monthly (Fixed): £1,062
Annual (Fixed): £1,062
Please note: This projection is provided for illustrative purposes only and does not take into account the customer’s individual circumstances. This projection is based on an initial £1,000 deposit and no further deposits or withdrawals are made.
How do I open and manage my account?
Opening your account: In branch or online. For existing online customers you can log into your Newcastle Building Society account to apply.
Giving us instructions for your account: In branch, by post, by telephone, online or by secure message (for accounts opened and operated online).
Minimum Opening Deposit: £1
Maximum Opening Deposit: Maximum ISA allowance for the current tax year, as prescribed by HM Revenue and Customs. Transfers from other ISA providers are also permitted.
Maximum Account Balance: No maximum balance. Please refer to point 3 for further details.
Can I withdraw money?
Withdrawals/transfers are permitted. Withdrawals prior to maturity will be subject to 120 days loss of interest. If insufficient interest has been earned then the penalty will be taken from your capital. Upon maturity (6 July 2026) your funds will roll into a default savings account which has easy access, with a variable interest rate.
Additional Information
Tax status: ISA interest is paid tax-free, which means it’s exempt from income tax. Tax rules may change in the future.
Reimbursement of Authorised Push Payment (APP) fraud
From 7th October 2024, new regulations strengthen protection for customers who suffer financial losses due to Authorised Push Payment (APP) Fraud. If you make a payment on or after 7th October 2024, as result of APP fraud, you may be eligible for a refund. Further information about your reimbursement rights is available on our website at https://www.newcastle.co.uk/authorised-push-payments.
Transferring Windfalls to Charity
All new customers agree to assign any windfall benefits which they may become entitled to on a future conversion or takeover of the Society to the Community Foundation. This is our Charitable Assignment Scheme. By agreeing to this assignment, any windfall benefit will be given to the Community Foundation, one of the leading community foundations in the UK serving Tyne & Wear and Northumberland. This agreement lasts for the first five years of membership, is irrevocable and is a condition of opening an account. Your agreement to open an account with us will be deemed your agreement to the Charitable Assignment Scheme. Please see ‘Transferring windfalls to charity’ on our website at https://www.newcastle.co.uk/transferringwindfalls or within our Savings General Terms and Conditions for further details.
New Customer
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In branch
Visit your local branch. If you’d like to open an account in-branch, you may need to arrange an appointment. Before visiting, please call ahead.