How to complain to Nationwide Building Society.
- Type
- Bank
- Region
- UK
- Escalate to
- Financial Ombudsman Service
- Response deadline
- 8 weeks
Details checked 2026-06-02
As a building society Nationwide is still FCA regulated, so the Financial Ombudsman covers it like any bank. Keep your account or member number to hand.
Complain to Nationwide Building Society first and ask for a written final response. If they reject you or the deadline passes, you can take it to the Financial Ombudsman Service for free, and their decision is binding on the company.
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Write my Nationwide Building Society complaintDetails compiled for convenience. Always confirm the current contact on Nationwide Building Society's own site. A self-serve tool, not a law firm. Not legal advice.