Mortgage guide
High Net Worth Mortgages: detailed guide
High net worth mortgages explained, including the FCA HNW exemption, large mortgage loans, private banks, interest-only options and complex income cases.
- Published
- 15 Aug 2026
- Last reviewed
- 15 Aug 2026
- Reading time
- 3 min
Large mortgage loans
A large mortgage loan is a mortgage that exceeds the maximum loan size offered by most mainstream lenders, typically requiring a specialist large loan team or a private bank. Large mortgages are assessed with greater flexibility than standard residential loans, because the borrower’s wider wealth, liquidity, and asset base can be taken into account alongside income.
Private bank mortgages
Private banks are a core source of high net worth mortgage lending in the United Kingdom, particularly for large mortgage loans, complex income, and internationally connected borrowers. Private bank mortgages are individually underwritten, and terms are negotiated case by case rather than drawn from a fixed product range.
Expat and foreign national high net worth mortgages
High net worth mortgages are available to British expats and foreign nationals purchasing or refinancing UK property, subject to lender criteria on residency, visa status, and source of funds. International HNW cases are typically served by private banks and specialist lenders with international underwriting capability.
Read more about Expat and foreign national high net worth mortgages
Mortgage repayment calculator
Working with a high net worth mortgage broker
A high net worth mortgage broker specialises in presenting complex wealth to lenders in the way each lender assesses it, comparing mainstream large loan desks, specialist lenders, and private banks across the whole market.
Read more about Working with a high net worth mortgage broker
Interest-only high net worth mortgages
Interest-only borrowing is widely available to high net worth borrowers, because lenders can rely on credible repayment strategies such as investment portfolios, sale of other assets, business sale proceeds, or future liquidity events. An interest-only high net worth mortgage keeps monthly payments lower and preserves capital for investment elsewhere.
High net worth mortgages for complex income
Many high net worth borrowers have income that does not fit standard affordability models, such as substantial discretionary bonuses, partnership profit shares, carried interest, vested and unvested stock awards, dividends from personal companies, or income drawn from trusts.
High net worth mortgages through companies and trusts
High net worth borrowers frequently hold or purchase property through limited companies, limited liability partnerships (LLPs), or trust structures, whether for privacy, succession planning, or tax reasons agreed with their professional advisers.
Read more about High net worth mortgages through companies and trusts
High net worth mortgage criteria
For context, these are the wider product terms covered by this guide. Availability and eligibility depend on your circumstances and the lender.
| Criteria | Detail |
|---|---|
| Borrowers | Personal, Ltd co, LLP, Trusts |
| Residency | UK residents, expats, foreign nationals |
| Repayment type | Interest only, repayment, part and part |
| Term | Up to 40 years |
| Minimum loan size | £50,000 |
| Max Loan to Value (LTV) | Up to 95% LTV |
| Income types | Salary, bonus, dividends, carried interest, vested stock, investment income, rental income |
| Foreign currency income | Yes |
| Affordability basis | Income multiples, assets-based underwriting, or blended |
| Assets under management (AUM) requirement | Varies by private bank |
| Locations | England, Wales, Scotland & Northern Ireland |
For context, these are the wider product terms covered by this guide. Availability and eligibility depend on your circumstances and the lender.
| Feature | Detail |
|---|---|
| Product fee | Between £0-£995 |
| Type | Residential |
| Rates | From 4.59% |
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Mortgage secured after an affordability appeal
- Area:
- West Midlands
- Loan size:
- £92,000
Frequently asked questions
What is a high net worth mortgage?
A high net worth mortgage is a mortgage for borrowers with substantial income or assets, assessed on overall wealth rather than standard income multiples alone. High net worth (HNW) mortgages are commonly used for large loans, interest-only borrowing, and complex income, and are offered by specialist lenders and private banks.
Do private banks offer the best high net worth mortgages?
Private banks offer flexible, individually negotiated high net worth mortgages, but they are not always the most competitive option. Some require assets under management (AUM) as a lending condition, which affects true cost. Comparing private banks against mainstream large loan desks and specialist lenders is essential.
Can I get a high net worth mortgage with bonus, carried interest, or stock income?
Yes, specialist lenders and private banks can assess bonus income, carried interest, vested stock, dividends, and partnership profits. Lenders may average variable income over several years or recognise vesting schedules. Clear documentation of each income source is essential to achieving full recognition in the affordability assessment.
Can I get a high net worth mortgage through a company or trust?
Yes, high net worth mortgages can be arranged for limited companies, limited liability partnerships (LLPs), and trusts, subject to lender acceptance of the structure. Lenders typically require personal guarantees from beneficial owners, and offshore structures reduce the available lender pool, making whole-of-market advice important.
Do I qualify as a high net worth borrower for a large mortgage?
High net worth mortgage treatment is available to borrowers who meet minimum income or asset thresholds defined in Financial Conduct Authority (FCA) rules. Qualifying borrowers can access more flexible, individually tailored underwriting, which is particularly useful where wealth is held in assets rather than income.
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