Debt consolidation calculator

the monthly saving and the honest total cost

Enter your unsecured debts (balances, rates, payments) against a consolidation into mortgage borrowing to see both numbers that matter: the monthly saving — usually substantial — and the total lifetime cost, which can run higher if short expensive debt is stretched across a long mortgage term. This calculator shows both, deliberately.

Consolidation converts unsecured debt into debt secured on your home — a real trade with real benefits and real warnings, which our second charge page treats fully. The calculator's job is making the trade visible before anyone signs it.

Why the monthly number flatters

Mortgage rates run far below card and loan rates, so the monthly payment falls dramatically on consolidation — that part is real. But stretching a £15,000 card balance across a 25-year mortgage term can cost more in total interest than the card would have, despite the lower rate: term length is the quiet variable the monthly figure hides.

The fix is structural: consolidate onto a shorter sub-term where products allow, or overpay the consolidated slice deliberately — capturing the rate saving without the term stretch.

Debt Consolidation Calculator — ContractorMortgagesDirect.co.uk
Debt consolidation calculator
The monthly saving AND the honest total cost — both numbers, deliberately.
Results are illustrative only. Think carefully before securing other debts against your home. Consolidation converts unsecured debt into debt secured on your property and may extend its term and total cost. Contractor Mortgages Direct is a trading name of Mortgage Knight Ltd, authorised and regulated by the Financial Conduct Authority. Your home may be repossessed if you do not keep up repayments on your mortgage.
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The routes and the discipline

Consolidation runs through three vehicles — capital-raising remortgage, further advance, or second charge — with the right one depending on your current deal's rate and ERCs (the keep-your-rate logic our second charge page maps). The discipline matters more than the vehicle: consolidation that precedes rebuilt card balances relocates the problem onto your home and adds a storey.

We advise on the whole picture — vehicle, structure, and honestly whether consolidation serves you at all — before arranging anything.

FAQs

Frequently Asked Questions

Monthly, almost always — mortgage rates run far below unsecured rates. In total, only if the term is managed: stretched across a full mortgage term, cheap-rate debt can cost more than the expensive short debt it replaced. The calculator shows both figures because both are the truth.
It is a real trade: lower rates and one payment, in exchange for converting unsecured debt into debt your home secures. The trade can be sound with discipline and structure — and we say plainly when it is not, because consolidation before behaviour change relocates the problem onto your house.
It depends on your current deal: a protected low rate or live ERCs favour the second charge (first mortgage untouched); an expiring deal favours the capital-raising remortgage. The three-way comparison — remortgage, further advance, second charge — is run on every consolidation case.
Yes — the same vehicles apply, with contractor income assessed by the methods this site maps throughout. The second charge market’s income flexibility is particularly relevant where circumstances have changed since the first mortgage was underwritten.