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Savings products - In preparation of the launch of our new and improved Online Service we have temporarily withdrawn online applications for all our savings products. You can still apply for these products by post or in branch. All savings products will be available to apply online from 12 May. We apologise for any inconvenience this may cause.
- Savings customers: Your 2024 / 2025 Annual Interest Savings Summary are currently being processed and are due to be delivered by 30 April 2025.
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Online Service update. Due to planned essential maintenance our Online Service will be unavailable between 5.30pm on Friday 9 May until 9am on Monday 12 May. We apologise for any inconvenience this may cause.

Windfall Bond
Our Windfall Bond account earns you interest and entry into a monthly free prize draw with a chance to win between £100 and £50,000.
Open a Windfall Bond account with us today!
Current annual interest (AER gross): 3.50%
Please note: In preparation of the launch of our new and improved Online Service we have temporarily withdrawn online applications for our Windfall Bond. You can still apply by post or in branch. Our Windfall Bond will be available to apply online from 12 May. We apologise for any inconvenience this may cause.
35 day notice savings account
The Windfall Bond is a unique savings account, quite unlike any other. It allows you to keep your capital secure and accessible*, earns you interest and entry into a monthly free prize draw for the chance to win up to £50,000.
Upcoming prize draw and prizes!
Find out how many prizes are on offer at the next prize draw
and upcoming draw dates
How it works
Find out how the Windfall Bond works, the monthly free draw rules and your chances of winning.
Windfall Bond Prize allocation
The number of prizes entered into the Monthly Free Prize Draw will vary each month. Find details of the prize allocation method we use
Frequently asked questions
Answers to the most common questions asked by our members about the Windfall Bond.
Do you need our help?
If you have any questions about the Windfall Bond, please contact our New Business Team
Contact our expert UK team
Existing customers
Savings - 03330 140144
savings.service@familybsoc.co.uk
Mortgages - 03330 140146
mortgage.service@familybsoc.co.uk
...or ask the way that suits you.
Request a call back
We can call you back at a time that suits you.
Visit us in branch
Ashley Square, Epsom, Surrey, KT18 5DD.
View our FAQs
Your questions might be answered here.