Notices

Savings customers - interest rates on many of our variable rate savings products will be decreasing from 29 January. We have emailed or written to you to let you know of how these interest rate decreases affect you. See our variable savings rate changes
UK Landlords - The Renters’ Rights Bill, introduced in September 2024, received Royal Assent on 27 October 2025 and is now law as the Renters’ Rights Act. Read more about what to expect.
The Bank of England Base Rate decreased by 0.25% to 3.75% on 18 December 2025. Read more about our rate changes

Savings: Interest rates for Windfall Bond will decrease by 0.25% from 1 January 2026. We will write to all customers individually to confirm the new rates.
Mortgages: Tracker mortgages will change on 25 January 2026 and we will write to customers individually with revised payment details where the new rate exceeds the minimum rate (or ‘floor’) already applying to their mortgage.
Important changes to our mortgage products - Find out more.

Mortgage products - On Tuesday 20 January 2026, we made changes to our mortgage product range. This includes enhanced Buy to Let HMO criteria, now catering to properties with up to six bedrooms (previously four bedrooms)
Managed Mortgage Rates and Discounted Variable Rates
From 7 February 2026, we'll be decreasing our Managed Mortgage Rates (MMR) by 0.15%. All on-sale discounted variable product rates and other details, including representative examples displayed on our website, have been updated to reflect these lower rates.
We will shortly be writing to existing customers who have been impacted by this change, with details relevant to them.
Our Market Tracker Cash ISA (2) paying 4.03% AER is now back on sale. Find out more

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Note: If you would like to open an ISA with us using money transferred from another ISA provider, please call us on 03330 140141 and we'll send you an application form and transfer authority form.

At the moment you can't apply for an ISA online using transferred money from another ISA provider. Not ideal we know, we're sorry.

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Thank you for choosing to join Family Building Society to open an ISA.

As a new Family Building Society customer it only takes a few minutes to apply for a new ISA. Please have your National Insurance number to hand.

If you already have an account with National Counties please use one of the existing customer links to the right as Family Building Society is part of National Counties.

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If you don't currently access your accounts online, please register for the Online Service to apply for your new account. We will check your details to ensure our records are kept up to date and give you access to view your other accounts online.