How Large Loan Remortgage Criteria Differ
For standard residential mortgages, lenders typically apply income multiple caps — most commonly 4.5 times gross income, though some lenders stretch to 5 or 5.5 times in certain circumstances. On a large loan, these standard multiples can become the binding constraint even for high-earning borrowers.
For example, a borrower seeking a £750,000 mortgage at a standard 4.5x income multiple would need a gross annual income of approximately £167,000. While this may be achievable, some very high earners have complex income structures — bonuses, carried interest, equity stakes, overseas earnings — that do not fit neatly into standard automated affordability models.
Private banks and specialist high-net-worth lenders take a more holistic approach. Rather than relying solely on income multiples, they consider total assets under management, investable wealth, net worth, and the overall financial relationship with the client. This allows them to lend at income multiples that would not be possible through standard channels.
Minimum loan sizes vary: HSBC's Premier mortgage service has a lower threshold, while Coutts and Arbuthnot Latham typically require clients to hold significant assets or current account relationships. Understanding which lender is appropriate for your loan size and financial profile is an important first step.
Top Lenders for Large Loan Remortgages
HSBC: HSBC is one of the most accessible options for large loans through its standard residential and Premier channels. It has relatively high maximum loan limits compared to many mainstream competitors and can be competitive on rates for high-value properties. For very high earners and complex income situations, HSBC Private Bank offers more bespoke underwriting with greater flexibility on income multiples and loan structures.
Barclays Private Bank: Barclays offers large loan mortgages through both its standard retail channel and its Barclays Private Bank division. For loans in the £500,000 to £2 million range, the retail mortgage team can often assist. For larger loans or more complex situations — such as foreign currency income, multiple properties, or significant investment portfolios — the private banking team provides tailored structuring. Barclays is known for being competitive on rates at higher loan sizes for clients who hold broader banking relationships.
Coutts: Coutts (part of NatWest Group) is one of the UK's oldest and most prestigious private banks and is specifically designed for high-net-worth individuals. Coutts typically requires clients to have investable assets or income above certain thresholds — its minimum relationship requirements are substantial. For qualifying clients, Coutts offers significant flexibility on loan size, income multiple, and structure, with genuinely bespoke underwriting.
Arbuthnot Latham: Arbuthnot Latham is a well-regarded private bank that takes a manually underwritten approach to mortgage applications. It is known for considering complex income profiles including bonuses, dividends, and overseas income. Arbuthnot Latham tends to work with clients through brokers and offers competitive rates for qualifying borrowers with high net worth or strong professional income.
Investec: Investec Private Bank is another strong option for large loan remortgages, particularly for borrowers in professional services, finance, and entrepreneurial sectors. Investec is known for pragmatic underwriting and a willingness to consider retained profits within limited companies, deferred bonus arrangements, and other complex income structures that mainstream lenders find difficult.
