You Borrowed More in 2022 and the Cover Stayed at 2011 Levels

No, the old policy almost certainly is not big enough, and nothing about the remortgage will have changed it. If you borrowed more to build the extension, the mortgage went up on the day the money arrived. The life insurance did not move at all. A policy is a fixed contract: the sum assured and the end date are whatever you agreed when you signed it, and they stay there until you actively do something about them.

This is the single most common gap in UK household protection, and it is not caused by carelessness. It is caused by the two things living in completely separate places. The mortgage is with the lender, it changes whenever you refinance, and the lender tells you about every change. The life cover is with an insurer, it changes only when you ask, and nobody writes to remind you that the number no longer fits.

The good news is that checking takes about twenty minutes and needs two documents. What you are comparing is not one number but two pairs of numbers — how much and for how long, on each side — because a policy can be the right size and still expire years before the mortgage does.

The short answer: the policy did not move

Life cover is priced and set at the point of application, on the basis of a specific amount and a specific term. Unless you deliberately bought an increasing or index-linked policy, the sum assured is frozen. Your policy from a decade ago is still insuring a decade-ago mortgage.

Meanwhile the debt has moved, probably more than once. That matters more now than it did to previous generations, because the amounts involved have grown. HM Land Registry publishes the official measure of what UK homes are worth and how that has changed over time, and the direction of travel across the last decade means the sums people borrow — on a purchase, on a move, or on a further advance against a home that has gone up in value — are meaningfully larger than the sums the same households insured earlier in their lives.

Source: HM Land Registry, UK House Price Index, published under the Open Government Licence v3.0.

None of this is a reason to panic about the policy you have. Old cover is valuable cover: it was underwritten on your health as it was then, and it does not get worse with time. The task is not to replace it. It is to work out how big the gap between the two numbers has become, and then to deal with the gap rather than the whole thing.

The two numbers, and where to find them

Get these four figures written down on one piece of paper. That single sheet is the whole exercise.

From the mortgage side:

• The current outstanding balance. Your annual mortgage statement or the lender's app will show it. Use the actual balance today, not the amount you originally borrowed.
• The remaining term. The month and year the mortgage is due to be repaid. This is the number people get wrong most often, because term extensions are agreed in a phone call and then forgotten.

From the policy side:

• The sum assured. On decreasing cover this is the starting amount, and what matters is what it has fallen to by now — ask the insurer for the current figure rather than reading the original one off the schedule.
• The policy end date. The month and year the cover stops. Also check whose life is insured, and whether it is one policy on two lives or two separate policies.

Then compare them as two pairs. Amount against amount, date against date. A shortfall on either side is a real gap, and a policy that ends before the mortgage does is arguably the worse of the two failures, because it leaves the family with nothing at all in the final years rather than not quite enough throughout.

While the paperwork is out, check the will as well. The people who remortgage for an extension are usually the people whose family has changed since they last thought about any of this, and a will drafted before a child was born may not do what its author assumed — see does your will cover a child born after you signed it?.

The four things that quietly moved the debt

Borrowing more is only one of them, and it is the one people remember.

Additional borrowing. A further advance from your existing lender, or a larger loan taken when you remortgaged elsewhere. Extensions, loft conversions, new kitchens, a car, consolidating other debts, a deposit for a child. The balance steps up on completion day and the cover does not follow it.

A term extension. Very common, often taken to bring the monthly payment down, and almost never accompanied by a change to the policy. If the mortgage now runs five years longer than it did, the policy end date that used to line up neatly with it now sits five years short.

A change of repayment type. Moving from repayment to interest-only, or to part-and-part, stops all or part of the balance from falling. That is a serious problem for decreasing cover in particular, because the policy carries on reducing while the debt stops reducing. The two lines diverge every single year.

Other borrowing secured on the house. A second charge loan, a homeowner loan, or later in life an equity release arrangement. These sit behind the mortgage but they are still secured on the same property and they still have to be repaid out of it.

There is a fifth, quieter one: capital raised on the family home to buy something else. If the extension money became a deposit on a rental property, the household now has two mortgages and an income stream that is much harder to keep running after a death than people expect — the practical problem is set out in who collects the rent after a landlord dies, before probate.

By contrast, a straight product transfer — moving to a new rate with the same lender, same balance, same term — changes nothing about the amount owed. Cover that fitted before a product transfer usually still fits afterwards. It is worth knowing which of these you actually did, because people use the word "remortgage" for all of them.

Why decreasing cover drifts out of shape on its own

Decreasing term assurance is designed to shadow a repayment mortgage down. The sum assured reduces year by year on a schedule fixed when the policy started, and that schedule is calculated using an assumed interest rate, which is stated somewhere in the policy documents.

The consequence is not obvious. Your policy's cover falls at the rate the insurer assumed. Your actual mortgage balance falls at the rate your real interest rate produces. If your real rate has been higher than the assumed rate, your balance has come down more slowly than the cover has, and a gap has opened up in the middle years of the term without anybody borrowing anything at all.

Add a term extension on top of that and the effect compounds, because a longer term means the balance falls more slowly still, while the policy's reduction schedule was never recalculated. Add a further advance and the debt jumps up to meet a policy that is already on its way down.

This is why the honest answer to "is the old policy still big enough" is almost never a confident yes without checking. Ask the insurer for the current sum assured today and the figure for the same date next year, and put them next to the mortgage balance today and the projected balance next year. Two years of data tells you whether the lines are converging or separating, which is the thing you actually need to know.

Who the money would go to, and how fast

An amount that matches is only half of a working arrangement. The other half is that the money reaches the right person quickly enough to be useful.

Most couples hold a single joint life first death policy, which pays out once, on the first death, and then ends. It is the straightforward option and it does the mortgage job. What it does not do is leave the survivor insured — after the claim, the person left behind has no cover at all, and applying again years later means being underwritten on their health as it is by then. Two single-life policies avoid that, and pay twice if both people die, though they are a different arrangement rather than a strictly better one.

Then there is where the money lands. A policy written in trust for named beneficiaries normally pays to those people directly, without waiting for probate and outside the deceased's estate, which usually keeps it out of the inheritance tax calculation on that estate too. A policy that is not in trust generally pays into the estate, which means probate, delay, and exposure to the estate's debts — at exactly the point when a mortgage payment is due.

No policy guarantees a payout. Every claim is assessed against the terms of the contract and the information given on the application, which is precisely why answering medical questions fully and accurately at the outset matters so much. What can be said is what usually happens: an accepted claim on a policy held in trust typically settles far faster than an estate is administered.

Closing the gap, and the one rule that matters

There are three broad routes, and one rule that applies to all of them.

Use an option built into the existing policy. Many term policies include a guaranteed insurability option, which lets you increase the cover after specific events — moving house and increasing the mortgage, marriage or civil partnership, the birth or adoption of a child — without answering fresh medical questions. These options are usually limited to a window after the event, capped in amount, and unavailable after a certain age. They are also easy to miss, because they live in the policy conditions rather than the schedule. Ask the insurer directly whether your policy has one and whether you can still use it.

Add a separate policy for the gap. Rather than replacing anything, you insure the extra borrowing on its own term. The old policy carries on untouched, which preserves whatever health terms you were given years ago, and the new one only has to cover the difference.

Replace the cover entirely. Sometimes the right answer, particularly where the shape is now wrong — decreasing cover behind an interest-only balance, for example.

The rule, in all three cases: do not cancel anything until the replacement has been accepted and is on risk, in writing. A new application is underwritten on your health today, not on your health when the first policy was written. A condition diagnosed since can mean an exclusion, a postponement or a decline, and by then the original cover is gone and cannot be brought back. This is the mistake that turns a manageable shortfall into no cover at all, and it is entirely avoidable.

An FCA-authorised broker can put the mortgage figures and the policy figures side by side and tell you which of the three routes fits; you can get life insurance quotes to start that comparison. If you are in the middle of a remortgage right now rather than looking back at one, the timing-specific version of this problem is covered in remortgaging onto a bigger loan? your cover didn't move, and the other life events that leave old cover behind are set out in the second baby: what your first-time cover missed.

What a shortfall actually looks like afterwards

It is worth being concrete about the thing being insured against, because "a gap in cover" is an abstraction and what it produces is not.

The claim is paid. It clears part of the mortgage. The survivor is left with the remainder — a smaller debt than before, on one income instead of two, with a monthly payment that the lender will recalculate but will not waive. Joint borrowers are each liable for the whole of the balance, so nothing about the death reduces what is owed beyond what the policy paid.

From there the options are the ones anybody has. Keep paying it from a reduced income. Ask the lender to extend the term to lower the payment. Move the mortgage into the survivor's sole name, which sounds administrative but is a fresh lending decision assessed on that person's income alone and can be refused — see taking a dead husband's name off the mortgage. Or sell. If none of those work and payments stop, the lender's ultimate route is the one described in can the bank repossess a house after the borrower dies?.

A gap does not have to be closed completely to change that outcome. The difference between a shortfall the survivor can absorb and one they cannot is often a fairly modest amount of additional cover, which is why the twenty-minute check is worth doing even if you conclude you will only fix part of it.

Scotland and Northern Ireland

A life policy is a contract with an insurer and works the same way across the UK. What differs is what happens to the money and the house afterwards, and that changes what "enough cover" means.

In Scotland, a payout that goes into the estate rather than to a trust becomes part of the deceased's moveable estate, and Scotland gives a surviving spouse or civil partner and the deceased's children fixed entitlements — legal rights — to shares of the net moveable estate regardless of what the will says. A large uninsured lump sum landing in the estate can therefore be partly claimable by children from an earlier relationship, which is a strong practical argument for writing cover in trust rather than leaving it to the will. Scotland also gives a surviving spouse or civil partner prior rights in the family home, which have no equivalent in England and Wales and which affect who ends up with the property: see Scotland: prior rights and who keeps the family home.

In Northern Ireland, succession and the grant process run under their own rules and the intestacy entitlements are not identical to those in England and Wales. The mortgage and the insurance work the same way; the distribution of anything that falls into the estate may not.

The rest of this topic — what lenders do, how liability works and what happens to the property — is collected in our guide to mortgages and property when someone dies.

Frequently asked questions

Do I need to change my life insurance if I remortgage for more?

Existing cover does not rise automatically, so borrowing more leaves a gap unless you deliberately add to it. Compare the current mortgage balance and the remaining term against the sum assured and the end date on your policy schedule. Both pairs need to match, not just one — a policy for the right amount that expires before the mortgage does still leaves the final years uninsured.

Can I increase the amount on my existing policy?

Sometimes. Many policies include a guaranteed insurability option, allowing an increase after a specified event such as a house move, a marriage or the birth of a child without fresh medical questions, usually within a limited window and up to a cap. Ask the insurer whether yours has one and whether it is still available. Otherwise you apply for additional cover in the normal way, and it is underwritten on your health today.

Does decreasing mortgage cover still fit after a product transfer?

A product transfer alone does not change the balance or the term, so the cover usually still fits. Extending the term or adding borrowing does change it, because a decreasing policy reduces on its original schedule while the real balance now falls more slowly or starts from a higher figure. Switching to interest-only has the same effect in a sharper form, since the balance stops falling while the cover keeps going down.