-
Online Service update. Due to planned essential maintenance, our Online Service will be unavailable from 6pm on Sunday 5 April to midnight on Monday 6 April. We apologise for any inconvenience this may cause.
-
IMPORTANT: The last day of the 2025 / 2026 tax year is Sunday 5 April.
Our online and postal ISA applications for this tax year will close from 5pm on Friday 27 March until the morning of Tuesday 7 April. Find out full details and timings for opening and funding ISAs with us within the current tax year.
Secure messaging
A safe and straightforward method of communication so you can discuss account specific information with us.
As the security of your data is of paramount importance to us, we’ve chosen to provide you with an additional, secure method of communication through our Secure Messaging portal.
Powered by Mimecast (a leading global provider of secure email cloud services), the Secure Messaging Portal offers a safe and straightforward way for us to:
- discuss account specific information with you
- securely send you electronic files
- securely receive electronic files from you.
We still send you normal emails for non-sensitive information, but we'll only use the Secure Messaging Portal (for more information on how to use the portal please refer to the questions below), or the separate Secure Message functionality within our Online Service, to discuss account specific details with you.
Added peace of mind
We’ve introduced this additional communication channel for your peace of mind. It means you can openly exchange sensitive account-related information and documents with us quickly and safely.
If you've registered for our Online Service and already use the Secure Message facility in it and are happy to carry on, then that’s absolutely fine. Likewise, if you’ve used our Secure Document Upload form to send us files and you want to carry on doing that, that’s fine too.
Family Building Society is proud to have received Cyber Essentials Plus accreditation

Data Security
We take all issues relating to your data seriously. Find out what we do to protect your data and what you can do to protect yourself.
