It serves approximately 719,000 customers across the United Kingdom, who together hold £9.9 billion in savings balances and is the fifth largest building society in the UK.

The head office is located on Sovereign Street in Leeds city centre.

It should not be confused with the defunct Leeds Permanent Building Society, which was also known as The Leeds, which merged with the Halifax Building Society on 1 August 1995.

[6] On 1 August 2006, following approval by the Mercantile members and confirmation by the Financial Services Authority (FSA), Leeds Building Society merged with Mercantile Building Society, in North Shields, an area of North Tyneside, in Tyne and Wear.

[7][8] The Leeds Building Society is also the main shirt sponsor of the Super League rugby league side Leeds Rhinos.