How a debt consolidation remortgage works, from first check to completion
A debt consolidation remortgage replaces your existing mortgage with a new, larger one and uses the extra money to clear credit cards, loans and overdrafts, leaving you with a single monthly mortgage payment.
Remortgaging to pay off debt means taking out a new mortgage that is bigger than the one you have, typically completing in 4 to 8 weeks, with the extra amount (the "capital raise") paid to your creditors on completion. Your unsecured debts are cleared and replaced by one mortgage payment, usually at a lower rate but over a longer term. It suits homeowners whose fixed rate has ended or is ending soon and who have enough equity. If you are mid-way through a fixed deal, a secured loan (also called a homeowner loan or second charge mortgage) alongside your mortgage may be the better route, which is why a qualified adviser compares both.
Last updated: 15 September 2026 · Written by The Equiclear Editorial Team
A debt consolidation remortgage is a new mortgage, usually with a new lender, that is large enough to pay off your existing mortgage and your unsecured debts at the same time. The part of the new loan that goes beyond your old mortgage balance is called capital raising, and the purpose you give the lender is debt consolidation. On completion day the new lender repays your old mortgage, your solicitor sends the agreed amounts to your credit card, loan and car finance providers, and those accounts are closed or cleared. From then on you have one mortgage payment instead of several separate ones.
It is the same product as an ordinary remortgage. The lender assesses your income, your outgoings, your credit history and your property in the normal way. What changes is that the lender applies extra rules to the debt consolidation part: a lower maximum loan to value, sometimes a cap on the amount, and often a condition that the debts are repaid directly by the solicitor rather than paid into your bank account.
The appeal is simple arithmetic. Mortgage rates are usually far lower than credit card or personal loan rates, so the same balance costs less per month. The catch is equally simple: a mortgage runs for many more years than a credit agreement, so a lower monthly payment can still mean more interest paid in total. A good adviser will show you both numbers before you decide.
Most lenders will consider a debt consolidation remortgage if you meet four tests. First, equity: the new mortgage, including the money used to clear your debts, needs to sit within the lender's maximum loan to value. Many mainstream lenders cap this at 80% of the property's value where any of the borrowing is for debt consolidation, and some allow 85%. If your home is worth £300,000, an 80% cap means total borrowing of no more than £240,000.
Second, affordability. The lender stress tests the whole new mortgage payment against your income and regular outgoings, at a rate higher than the one you will actually pay. The FCA's responsible lending rules (MCOB 11.6) require the lender to show the mortgage is affordable and, unless the rate is fixed for five years or more, to allow for likely future rate rises. Lenders differ on how they treat the debts being cleared: some exclude them from the calculation because they will no longer exist, others include them as if you were still paying, which is much harder to pass. This single policy difference is often the reason one lender says no and another says yes to the same person.
Third, credit history. A clean file gives you the widest choice. Missed payments, defaults or a CCJ narrow the field to lenders with a more flexible view, and usually cost more in rate. Our bad credit page explains what is realistic.
Fourth, timing. If you are still inside a fixed or discounted period, leaving early usually triggers an early repayment charge, commonly between 1% and 5% of the balance. On a £180,000 mortgage that can be several thousand pounds, which can wipe out the saving. Remortgaging to clear debt therefore makes most sense when your deal has ended, ends within the next few months, or the charge is small relative to what you would save.
| Lender check | What they typically look for |
|---|---|
| Loan to value | Total borrowing at or below 80% to 85% of the property value |
| Affordability | New payment passes a stress test at a higher notional rate |
| Credit file | Clean file for high street lenders; specialist lenders for blips |
| Repayment type | Consolidation usually on a capital and interest basis only |
| Purpose | Debts to be repaid on completion, often via the solicitor |
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The amount you can add to your mortgage is the smaller of two figures: what your equity allows, and what your income supports. Equity is your property's current value minus everything already secured on it. If your home is worth £280,000 and your mortgage is £170,000, you have £110,000 of equity, but a lender working to an 80% limit will only lend up to £224,000 in total, leaving £54,000 available for consolidation before affordability is even considered.
Some lenders also set a cash cap on consolidation borrowing regardless of equity, for example a maximum amount in pounds or a maximum share of the total loan. Others have no cap and assess each case individually. Because the rules vary so much, the practical answer to "how much can I borrow" comes from a broker checking your numbers against several lenders' criteria, not from a single bank's website.
Two things reduce the amount lenders will consider. Interest-only borrowing is rarely allowed for debt consolidation, so the whole new mortgage normally has to be on a repayment basis. And if your existing mortgage is in arrears, most lenders will not lend more until that is resolved.
There are two kinds of cost: the fees to arrange it, and the interest over the life of the loan. Arrangement costs vary by lender and deal but typically include a product or arrangement fee (which can often be added to the loan), a valuation fee, legal or conveyancing costs (many remortgage deals include free basic legals), and, where you are leaving a deal early, the early repayment charge on your current mortgage. Where a broker charges a fee for advice, that is disclosed to you before you commit.
The interest cost depends on the rate, the amount and the term. This is where the total repayable figure matters more than the monthly one. Spreading £20,000 of card debt over the 20 years left on a mortgage produces a much smaller monthly payment than clearing it in five years, but the interest keeps accruing for four times as long. Choosing a shorter term for the whole mortgage, or overpaying the consolidated amount, reduces the total cost, and an adviser can model both.
Illustrative rates: The rates in this example are fictional and used only to show how the numbers work. They are not an offer. Your actual rate may be lower or higher and will depend on your circumstances, your property and the lender. Consolidating debt over a longer term can mean you pay more interest overall, even if your monthly payment falls.
| What you're paying now | Amount |
|---|---|
| Credit cards (£12,000 at 24.9% APR, minimum payments) | £350/month |
| Personal loan (£8,000 at 12.9% APR, 5-year term) | £182/month |
| Current total monthly payments | £532/month |
| Consolidated into your mortgage | Amount |
|---|---|
| £20,000 added to a remortgage at 5.4% over 20 years | £136/month |
| Total repayable on that £20,000 over 20 years | £32,748 |
In this example the monthly outgoing on those debts falls from £532 to £136, but the £20,000 costs £32,748 to repay over the full term. Over 15 years instead of 20 the payment would be £162 and the total £29,224. That is the trade-off in one line: a shorter term costs more each month and less overall.
A debt consolidation remortgage typically takes four to eight weeks from application to completion, depending on the lender, the valuation and the conveyancing. The sequence is: a decision in principle based on your details; a full application with proof of income and statements for the debts being cleared; a valuation of your property; the mortgage offer; then legal work and completion.
On completion the solicitor receives the funds from the new lender, redeems your old mortgage, and pays each creditor the agreed settlement figure. Lenders often make this a condition of the offer for debt consolidation, so the money never sits in your account. You will want up-to-date settlement statements from each creditor a week or two before completion, because balances move with interest and payments.
After completion, check that each cleared account shows a zero balance and, if you want to avoid running the balances back up, consider closing the cards. The saving only holds if the old debt is not rebuilt alongside the new mortgage.
The most important risk is that you are turning unsecured debt into debt secured against your home. If you fall behind on the new mortgage payment, your home could be repossessed. A missed credit card payment does not carry that consequence. This is why lenders, advisers and this site all repeat the same warning, and why the decision deserves a proper affordability check rather than optimism.
The second risk is total cost. A lower monthly payment can hide a higher total bill because the debt now runs for the remaining mortgage term. The worked example above shows £20,000 costing more than £32,000 to repay over 20 years. If you can afford a shorter term, or to overpay, you keep more of the benefit.
The third is the early repayment charge. If you are inside a fixed deal, the charge for leaving can be thousands of pounds. In that situation it is often better to keep the mortgage exactly as it is and place a secured loan alongside it instead, then review everything when the fixed period ends.
Finally, there is the behavioural risk of clearing cards and then using them again. Consolidation solves a structural problem (too many payments at high rates); it does not, on its own, change spending habits. If the debt is a symptom of income not covering outgoings, free debt advice from MoneyHelper, StepChange or Citizens Advice is the better first step, and an adviser should tell you so.
It tends to be the right route when your current mortgage deal has ended or ends within the next few months, you have enough equity to stay within the lender's consolidation limit, your income comfortably supports the new single payment, and you want everything with one lender. It is also the route most likely to give you the lowest rate, because first charge mortgage rates are generally lower than secured loan rates.
It tends not to be right when you are early in a fixed rate with a large early repayment charge, when the amount you want to clear is small enough that fees outweigh the saving, or when your credit history has recent problems that mainstream remortgage lenders will not accept. In those cases a secured loan, which leaves your existing mortgage untouched and is available from specialist lenders, is usually the better fit, and for very small amounts an unsecured personal loan or a balance transfer card may beat both.
The quickest way to find out is to have a qualified adviser run your actual numbers against current lender criteria. Checking your options with Equiclear takes about 30 seconds, is free, and will not affect your credit score. If you decide to go ahead, the adviser handles the application, the valuation and the completion.