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Are Interest-only Mortgages Good for High-net-worth Individuals?

By March 13, 2024 May 20th, 2024 No Comments

For an interest-only mortgage, the borrower is only obliged to pay interest for a certain amount of time. This is paid in monthly instalments, similar to a traditional mortgage. All you have to pay each month for an interest-only mortgage is interest on the loan amount.

Until the mortgage term has expired, you are not required to repay the entire amount. Unlike a repayment mortgage, which gradually lowers the debt until it is paid off in full by the end of the mortgage term, this one requires you to repay both interest and a portion of the loan each month.

What is a high-net-worth individual?

To be considered a high-net-worth individual, you typically will have:

  • An annual income above £100K
  • Net assets over £250K beyond your pension fund assets and your private residence

Interest-only mortgages can be suitable for high-net-worth individuals in certain circumstances, but it’s essential to carefully evaluate the advantages and disadvantages before deciding if it’s the right option. Below are some factors to consider.

What are the advantages of an interest-only mortgage for high-net-worth individuals?

Cash flow management

Interest-only payments allow borrowers to manage their cash flow more effectively, as they only need to cover the interest portion of the loan, leaving more funds available for other investments or expenses.

Investment opportunities

High-net-worth individuals may choose interest-only mortgages to free up capital for other investment opportunities that have the potential for higher returns than the cost of mortgage interest.

What are the drawbacks of an interest-only mortgage for high-net-worth individuals?

Principal repayment risk

With interest-only mortgages, the borrower is not making payments towards the principal amount of the loan. This means they don’t build equity in the property and are at risk if property values decline.

Interest rate risk

If interest rates rise, the cost of servicing the mortgage can increase, potentially leading to higher monthly payments.

Market fluctuations

High-net-worth individuals who depend on the value of their investments to cover the principal repayment at the end of the mortgage term may face challenges if market conditions are unfavourable.

Long-term costs

Over the long term, interest-only mortgages may cost more than traditional mortgages, since the principal amount remains unpaid for a longer period of time.

Things to consider

With all this in mind, there are certain factors to consider when taking out one of these mortgages.

These include:

  • Financial discipline: High-net-worth individuals should have the financial discipline to invest the freed-up capital wisely to offset the risks associated with interest-only mortgages.
  • Exit strategy: It’s crucial to have a well-defined exit strategy for repaying the loan amount, whether through the sale of assets, investments, or other means.
  • Consultation with financial advisors: Seek advice from financial advisors and mortgage professionals who can assess your specific financial situation and help determine if an interest-only mortgage aligns with your overall wealth management strategy.


Interest-only mortgages can be a viable option for high-net-worth individuals, but they require careful consideration and a thorough understanding of the associated risks and benefits. Consulting with financial professionals is strongly recommended to make an informed decision based on individual circumstances. If you require additional advice on this matter, get in touch with one of our friendly mortgage advisors in Peterborough today.

David Mortell company director at Agentis Financial & Mortgage Solutions

David Mortell

David is Ce(MAP) and Ce(RER) qualified and has 14 years’ experience delivering top-rated mortgage and financial advice.In 2014, David took the plunge and started Agentis Financial & Mortgage Solutions with award-winning mortgage broker, Christine Long. Agentis has now become the brokerage of choice in and around Peterborough. David is also a director at our sister company, Agentis Wealth.