A credit card balance or a personal loan does not put an end to your remortgage plans. It is a myth that trips up a lot of otherwise strong applicants. Prepare properly and you can still land good terms even with debt on your file.
Most people come to this for one of two reasons: they want lower monthly outgoings, or the current repayments have got uncomfortable. Both routes lead back to the same question — how do lenders actually treat existing debt, and what can you do about it beforehand?

How Lenders Read a Credit File With Debt On It
A credit check kicks off every remortgage application, and that is usually where the nerves start. Debt on your file is not automatically read as risk. Underwriters weigh your debt-to-income ratio against your payment history and, importantly, how well you have managed your existing mortgage. Years of on-time mortgage payments count for a lot, even if other balances are still open.
Put your numbers through a mortgage calculator before you apply. It gives you an honest starting figure for what you could still borrow, given what you already owe. Two things move that figure the most: getting your card balances down relative to their limits, and clearing off whatever smaller debts are realistic to pay down first.
Sorting Your Finances Out Beforehand
Clear or reduce unsecured debt if you possibly can before you apply. Skip taking on anything new unless you genuinely have no choice. Close any credit accounts sitting unused — a dormant card can still count against you even if the balance is zero. Above everything else on this list, pay on time, every time, in the run-up to applying.
If you are self-employed, there is an added layer here. Lenders want two or three years of consistent income, not one strong year propping up a weaker one, so get your accounts and tax records tidy well ahead of time instead of the week before you apply. A broker who deals with self-employed clients regularly knows which lenders assess irregular income properly instead of writing it off on sight.
Even small habits add up. A standing order into a savings account, however modest, tells an underwriter something a single lump-sum deposit never quite does.
Folding Debt Into a Remortgage

Combining several debts into one remortgage is one route people consider. Done well, it turns multiple repayments into one, and can lower what you pay in interest depending on the rates involved. The catch: stretching debt over a mortgage term usually means it takes far longer to clear, and that can add up to more overall even at a lower rate. Run the actual numbers — fees, any early repayment charges on your current deal — before committing.
Sometimes it is the wrong move entirely. A client of ours came through this exact situation after being furloughed during the pandemic. Several unsecured debts had built up, a couple on cards charging close to 29.9%, with promotional rates about to expire and jump sharply. Monthly repayments across everything had reached £1,600, leaving almost nothing spare. A full remortgage would have meant losing a good rate on their existing deal, so instead we set up a second charge mortgage that sat behind it instead of replacing it, timed to end at the same point as their existing fix. Their combined payments came down to £450 a month. You can read the full breakdown in our debt consolidation case study. Second charge lending will not fit every case, but ask about it whenever a full remortgage would cost you a rate you want to keep.
Looking Like a Safe Bet
Stability counts almost as much as the figures themselves. Stay in your job through the application if you are employed. If you are self-employed, two full years of tidy accounts makes an underwriter’s job easier and your case stronger. A steady income history with no strange gaps or a string of job changes works in your favour every time.
A small emergency fund built up before applying does two jobs at once — it shows discipline, and it reassures a lender that a bump in the road would not tip you straight into missed payments. Cutting back on non-essential spending for a couple of months has a similar effect, because your outgoings genuinely do look tighter and more manageable.
Getting the Paperwork Right
Most declines and delays trace back to messy paperwork, not to genuinely unworkable finances. Gather bank statements, payslips and your current mortgage documents before you start the application. Flag any missed or late payments yourself — a lender will find them regardless, and hearing it from you first looks far better than being caught out. Pull your own credit report ahead of time too, so nothing takes you by surprise.
A calculator gives you a realistic borrowing figure. Be honest with that figure instead of reverse-engineering it from the property you have set your heart on. Anything unusual in your income or credit history deserves a short covering note explaining it — underwriters appreciate context far more than silence. A second pair of eyes from a broker before submission catches the small errors that are easy to miss in your own paperwork.
None of this makes debt a dead end for remortgaging. It just raises the bar on preparation. Go in organised, honest about your numbers, and realistic about what you can actually afford, and you are already ahead of most applicants — whatever brought you to remortgaging in the first place.
Frequently Asked Questions
Can you remortgage if you already have other debts?
Yes, in most cases. Underwriters weigh your overall debt-to-income ratio and payment record instead of ruling out anyone who has debt at all. Years of solid payments on your current mortgage genuinely count in your favour, even with other borrowing still open.
Will folding debt into a remortgage end up costing more overall?
Often, yes. Spreading unsecured debt over a mortgage term usually stretches the payoff out far longer than the original loan or card would have taken, and that can outweigh a lower interest rate over time. Work out the full-term cost, not just the change to your monthly payment, before deciding.
What if I would rather not remortgage the whole property just to deal with debt?
Ask about a second charge mortgage. It sits alongside your existing mortgage instead of replacing it, which matters if you want to hang onto a good rate on your current deal. It will not suit everyone, but a broker can talk you through whether it fits your situation.
Is there a debt level that makes remortgaging impossible?
No fixed line exists. It comes down to your debt-to-income ratio, your payment history, and how an individual lender weighs risk, and that varies quite a bit case by case. A broker can tell you honestly where you stand instead of quoting a generic rule.
Does being self-employed complicate things further if I also have debt?
It adds scrutiny, not a dead end. Lenders want to see two years or more of consistent income, so tidy, up-to-date records and a broker who knows self-employed applications well both help considerably.
What is the one thing most worth doing before I apply?
Get your paperwork together and flag anything unusual in your credit history yourself, first. Most delays and declines come down to gaps in documentation or a surprise the lender was not told about, not the underlying finances being unworkable.
Speak to a Remortgage Specialist
Existing debt does not have to be a barrier to remortgaging, but it does mean your application needs to be put together properly. Our advisers can talk you through whether a straightforward remortgage, a debt-consolidating remortgage, or a second charge mortgage sitting alongside your current deal makes the most sense for your situation.
UK Mortgage Broker is a whole-of-market broker helping clients throughout the UK and globally to secure funding on UK property. We are directly authorised and regulated by the Financial Conduct Authority.
Your home may be repossessed if you do not keep up repayments on your mortgage.
Call: +44 1628 969 500 Email: info@uk-mortgagebroker.co.uk
Related Pages
- Remortgage UK – the full guide to remortgaging, switching lenders versus a product transfer, and how the process works.
- Second Charge Mortgages – an alternative to a full remortgage when you want to keep your existing mortgage rate in place.
- Debt Consolidation Case Study – the real case referenced above, in full, including the numbers involved.
- Self-Employed Mortgages – how self-employed applicants are assessed, including on income consistency.
- How a Mortgage Application Impacts Your Credit Report – what lenders see when they run your credit file.

