A mortgage is typically the largest financial commitment in a household. For expats and internationally mobile investors who own property in multiple jurisdictions — or who have borrowed in a currency different from their income currency — the financial consequences of a death without adequate protection can be severe: forced property sales, currency shortfalls, and family members inheriting a debt they cannot service.
Decreasing term life assurance is the standard product for repayment mortgage protection. It is widely available, relatively low in cost, and well-suited to the specific risk of an outstanding loan that reduces over time. For international borrowers, it requires some additional consideration — primarily around currency and the interaction with other policies in a wider protection portfolio.
How Decreasing Term Policies Work
A decreasing term policy provides life cover for a fixed term, during which the sum assured reduces over time according to a predetermined schedule. The schedule is typically designed to mirror the outstanding balance on a repayment mortgage.
At outset, the policy sum assured equals the original mortgage balance. As the term progresses, the sum assured falls — broadly in line with the mortgage balance, assuming a fixed interest rate agreed with the insurer at the time the policy is arranged. If the life assured dies at any point during the term, the insurer pays the then-current sum assured, which should be sufficient to clear the remaining mortgage debt.
If the life assured survives to the end of the term, there is no payout and the policy has no residual value. This is the same as any pure protection term assurance.
The key advantage over a level term policy is cost: because the insurer's maximum liability decreases over time, premiums are lower for an equivalent initial sum assured.
Interest Rate Assumption and Potential Mismatch
The reduction schedule in a decreasing term policy is calculated using an assumed interest rate. If the actual mortgage rate is materially different from the assumed rate, the policy balance and the actual mortgage balance may diverge over time.
If the actual mortgage rate is higher than the assumed rate, the mortgage balance reduces more slowly than the policy sum assured, meaning the payout might be insufficient to clear the loan later in the policy term.
For variable-rate or tracker mortgages, or for mortgages in jurisdictions where rates have fluctuated significantly, this mismatch can be a real risk. The solution is to either use a conservatively low interest rate assumption in the policy (so the reduction schedule is slower than expected, providing a buffer), or to arrange a level term policy which avoids the reduction schedule problem entirely.
Many international protection advisers recommend level term over decreasing term for borrowers in less predictable interest rate environments, accepting the slightly higher premium in exchange for the certainty of a fixed sum available throughout the term.
Currency Considerations for International Borrowers
For expats with mortgages denominated in currencies other than their home currency, or different from the currency of their income, the question of policy currency is important.
Currency matching. The cleanest approach is to denominate the policy in the same currency as the mortgage. If the mortgage is in euros, the policy sum assured should be in euros. This eliminates exchange rate risk — the payout will clear the loan regardless of currency movement between policy inception and claim.
Currency mismatch risk. If the policy is denominated in sterling but the mortgage is in euros, and sterling weakens materially against the euro over the policy term, the sterling payout may be insufficient to clear the euro-denominated loan. Over a 20-25-year mortgage term, currency movements can be significant.
Practical challenge. Some international life insurers have restrictions on the currencies in which they denominate policies. The range of available policy currencies may be narrower than the range of mortgage currencies in the markets where expats borrow. In some cases, a level term policy in a hard currency with a higher sum assured may be a practical compromise.
Level vs Decreasing: When Each Is Appropriate
Decreasing term is appropriate when:
- The mortgage is a capital repayment loan with a fixed or predictable interest rate
- The primary purpose of the cover is to clear the mortgage debt on death
- Cost efficiency is a priority
- The mortgage currency is available as a policy denomination
Level term is appropriate when:
- The mortgage is interest-only (no capital reduction)
- The interest rate is variable or unpredictable
- The cover is intended to serve dual purposes — both mortgage clearance and provision for dependants beyond the mortgage
- Currency constraints prevent a matched-denomination policy
- The investor wants a fixed sum available throughout the term regardless of outstanding balance
Many advisers working with investors who own multiple properties or whose protection needs are complex recommend level term as the default, using the simplicity and certainty of a fixed sum as a planning advantage.
Sum Assured Calculation for Multi-Property Investors
An investor holding properties across multiple jurisdictions — say, a UK buy-to-let with a sterling mortgage, a Spanish apartment with a euro mortgage, and a buy-to-let in Dubai with a dollar-denominated loan — faces a sum assured calculation that spans currencies and repayment schedules.
The options are:
Option 1: Separate policies per property. Each mortgage has its own decreasing term policy in the matching currency. Each policy is sized to the specific loan and term. Clean, but involves multiple insurer relationships and policy administration.
Option 2: Single level term policy in a major currency. A single level term policy with a sum assured large enough to cover the combined outstanding debts in a nominated currency. Less precise in tracking individual balances, but simpler to administer. The investor accepts some currency translation imprecision.
Option 3: Combined decreasing term with conversion. A single decreasing term policy sized to the combined debt at commencement, with the reduction schedule modelled on the aggregate repayment profile. Requires careful modelling and is best arranged with an adviser who can structure the schedule correctly.
For most multi-property investors, Option 1 or Option 2 provides the clearest outcomes. The choice depends on the investor's preference for precision versus simplicity and the currency availability from their preferred insurer.
Interaction with Existing Protection
Decreasing term mortgage protection should sit within a broader protection plan rather than being arranged in isolation. An investor who has £800,000 of outstanding mortgages across a portfolio should consider whether their total life assurance — including group death-in-service, existing term policies, and any whole-of-life cover — provides adequate total coverage including but beyond the mortgage portfolio.
Arranging a decreasing term policy without reviewing total cover can create a situation where the mortgage is notionally covered but family income needs, school fees, and other financial obligations are not.
This guide is for general information only. Product availability, currency options, and the appropriateness of any life assurance product depend on individual circumstances and the specific insurer. Life assurance policies have no cash value and pay only on death within the term. This is not financial advice. Seek independent professional advice before arranging mortgage protection.
How Global Investments can help
Global Investments works with international property investors to ensure their mortgage exposures are properly covered. Whether you have a single offshore mortgage or a multi-currency property portfolio, our advisers understand the currency considerations, interest rate assumptions, and policy structuring options needed to put in place cover that genuinely works.
Contact us to discuss your property portfolio and protection requirements.
Frequently Asked Questions
What is the difference between decreasing term and level term life assurance?
Level term pays a fixed sum on death throughout the policy term. Decreasing term pays a sum that reduces over time, in line with an outstanding loan balance. Decreasing term is typically cheaper for mortgage protection because the insurer's maximum liability falls as the debt reduces.
Should I arrange the policy in the same currency as the mortgage?
Ideally yes, particularly for interest-only or large repayment mortgages. If your mortgage is denominated in euros and your policy pays in sterling, currency movement between taking the policy and making a claim could mean the payout is insufficient to clear the loan. Currency matching eliminates this mismatch.
Can I use one decreasing term policy to cover multiple international mortgages?
You can arrange a single policy with a sum assured equal to the combined outstanding balances of multiple mortgages. However, the calculation requires careful structuring since different mortgages may have different terms and interest rates. Some investors prefer separate policies linked to each property.
What happens if I overpay my mortgage and the balance falls faster than expected?
With most decreasing term policies, the reduction schedule is fixed at outset (based on an assumed interest rate). If you overpay the mortgage and the balance reduces faster, the policy sum assured may exceed the actual loan balance at a given point. This is not a problem — you are simply overinsured on the mortgage, and the excess payout benefits your estate. It is not a reason to avoid the product.
Is decreasing term assurance suitable for interest-only mortgages?
No. An interest-only mortgage does not reduce in capital terms — the outstanding balance remains constant throughout. Decreasing term is designed for repayment mortgages. For an interest-only loan, level term life assurance is the appropriate product, ensuring a fixed sum is available to repay the capital at any point during the loan term.
This guide is for general information only and does not constitute financial or insurance advice. Policy terms, premium rates, and insurer eligibility criteria change — always verify current terms with a qualified independent adviser before taking out any policy.