Consolidation break-even — when one loan costs more after fees

Debt consolidation, in this guide, means replacing several unsecured balances with one new personal loan. The appeal is easy to state: one repayment, one rate, one end date. The maths is harder. A lower monthly figure can hide a longer term. A mid-range consolidation rate can still be higher than your cheapest existing debt. An arrangement fee adds cash you never see as usable balance. LoanCalc Lab’s tools compare keep-versus-consolidate cash flows under stated assumptions; they do not approve credit and they do not say whether any particular person ought to consolidate.

The angle here is deliberately cautious: when rolling several debts into one loan costs more after fee and term. A worked EXAMPLE pairs a Loan B–style consolidation (£12,000 · 16.9% EXAMPLE · 60 months · £195 fee) with the same three balances used in the snowball-versus-avalanche guide (£1,200 @ 29.9%, £3,400 @ 22.0%, £6,800 @ 9.9%, with EXAMPLE minimums). Under those inputs the new loan clears faster than the keep path — and still shows a slightly higher lifetime cost once the fee and the larger face principal are counted.

Who this guide is for — and who it is not for

This guide is for readers weighing whether rolling several unsecured balances into one personal loan still costs less once fees, rate blend and term are counted. Use it with the consolidation break-even calculator.

It is not for mortgage consolidation, debt-management plans, insolvency options, or personalised advice on which debts to keep. LoanCalc Lab is not a lender or debt adviser. EXAMPLE figures are illustrative only.

What “break-even” means for consolidation

Three questions often get collapsed into one slogan. First: does the monthly outlay fall? Second: if it does, how many months until the arrangement fee (and any exit charges on the old debts) are recovered from that monthly saving? Third: over the full life of the debt, is total interest plus fees on the consolidation loan lower than the interest you would pay by keeping the separate balances at their minimums?

A simple fee break-even when the new payment is lower is:

break-even months ≈ fee ÷ monthly saving

That formula is empty when the consolidation EMI is higher than the sum of current minimums — there is no monthly saving to amortise the fee against. Lifetime cost can still improve if interest falls by more than the fee, or worsen if you stretch the term, roll a cheap balance into a dearer rate, or borrow more than the sum of today’s balances. The consolidation break-even calculator reports monthly change, keep-path interest, consolidation interest, fee-inclusive total cost and a fee break-even month when a monthly saving exists.

Worked EXAMPLE — three debts vs Loan B–style consolidation

All figures below are labelled EXAMPLE. They are illustrative only — not a live quote, not a credit offer, and not a recommendation to consolidate or to keep separate debts.

Existing debts (same snowball EXAMPLE set):

• EXAMPLE Debt A: £1,200 balance · 29.9% EXAMPLE annual rate · £45 EXAMPLE minimum / month
• EXAMPLE Debt B: £3,400 balance · 22.0% EXAMPLE annual rate · £90 EXAMPLE minimum / month
• EXAMPLE Debt C: £6,800 balance · 9.9% EXAMPLE annual rate · £100 EXAMPLE minimum / month

Starting balances sum to £11,400 EXAMPLE. Combined minimums are £235 EXAMPLE per month.

EXAMPLE consolidation (Loan B style): £12,000 face principal · 16.9% EXAMPLE annual rate · 60 months · £195 EXAMPLE arrangement fee.

Under LoanCalc Lab’s reducing-balance keep-path simulation (each debt pays only its EXAMPLE minimum until cleared), the three debts take about 101 months EXAMPLE to clear, with total interest ≈ £6,460 EXAMPLE and total cost (principal + interest) ≈ £17,860 EXAMPLE.

The EXAMPLE consolidation EMI is about £297.59 EXAMPLE. Total interest on the £12,000 loan ≈ £5,855 EXAMPLE. Adding the £195 fee, fee-inclusive total cost ≈ £18,050 EXAMPLE over 60 months.

• Monthly change ≈ +£62.59 EXAMPLE (£297.59 − £235) — the consolidation payment is higher, so fee break-even from monthly saving does not apply
• Interest alone is lower on the consolidation path (~£605 EXAMPLE before the fee), but fee-inclusive lifetime cost is about £190 EXAMPLE higher than keeping the three debts at their minimums
• Time to clear falls from ~101 months to 60 months — a shorter calendar that still costs more in this EXAMPLE once fee and face principal are counted

Run the same inputs in the consolidation break-even calculator. Pair it with the APR / true cost calculator when you want a fee-aware view of the consolidation product on its own — not only the keep-versus-consolidate comparison.

Why this EXAMPLE costs more — fee, blend and face amount

Three structural features drive the result; none of them needs a “bad” lender to appear.

1. Rate blend. Debts A and B sit above 16.9% EXAMPLE; Debt C sits below it at 9.9% EXAMPLE. Rolling the cheap balance into the consolidation rate raises the cost of that slice of debt even while the dear balances get cheaper. Weighted average rate on the keep path is not the same as “everything at 16.9%”.

2. Face principal vs balances. The Loan B–style EXAMPLE advances £12,000 against £11,400 of starting balances — an extra £600 EXAMPLE of principal to amortise. Interest on the consolidation path can still look lower than keep-path interest while total cash repaid (principal + interest + fee) is higher, because you are financing a larger face amount.

3. Arrangement fee. The £195 EXAMPLE fee is cash that does not reduce anyone’s existing balance in this framing. On the calculator’s interest-saved line it is subtracted from the interest gap; on total cost it sits on top of repayments. Either way it must be earned back — and when monthly outlay rises, it cannot be earned back from payment relief alone.

Term length matters too. Sixty months clears faster than the ~101-month keep path at minimums, which can feel like a win on the calendar. Stretching further to force a lower EMI would usually raise consolidation interest; shortening the term raises the monthly figure further. Neither move is “free” — each trades cashflow against lifetime cost.

What would flip this EXAMPLE

The EXAMPLE above shows a cost increase, not a rule that every consolidation loses money. Matching the £11,400 balance sum (instead of £12,000), cutting the fee, or leaving Debt C outside the new loan would move the lifetime comparison. Change one input at a time in the calculator and watch monthly change and fee-inclusive total cost flip sign.

Keeping the debts and directing surplus after minimums is a different strategy from new credit. The snowball vs avalanche guide uses the same three EXAMPLE balances with a £75 EXAMPLE monthly extra — no consolidation fee and no new rate on Debt C.

Public guidance on cost of credit

In the UK, regulated consumer credit uses an APR (annual percentage rate of charge) that reflects the total charge for credit under prescribed assumptions. The FCA’s Consumer Credit sourcebook sets out how the total charge for credit and APR are determined for regulated agreements (FCA Handbook, CONC App 1). MoneyHelper’s borrowing guidance stresses comparing the cost of credit options — including key figures such as APR and how much you repay overall — rather than reacting to a headline rate or a single monthly figure alone (MoneyHelper — Options for borrowing money). LoanCalc Lab’s consolidation and true-cost tools are illustrative companions to those disclosures; they are not a substitute for the lender’s pre-contract information or a regulated APR on an agreement.

Balance transfer card vs debt consolidation loan: which costs less?

If most of what you owe sits on credit cards, the alternative to a consolidation loan is often a 0% balance transfer card. The two work differently. A loan has a fixed rate, a fixed monthly payment and a known end date. A balance transfer card charges a one-off fee, then 0% for a set number of months, and then reverts to the card’s standard rate on anything still owed. MoneyHelper notes that transfer fees are often around 2–4% of the amount moved, and that any balance left when the introductory period ends is charged at the higher standard rate. Which one costs less depends mostly on one thing: whether you can clear the balance before the 0% period ends.

Shared EXAMPLE (checked 26 October 2026): £5,000 of card debt.

• Path T (balance transfer): 3% transfer fee (£150, added to the balance), 0% for 12 months, then 24.9% EXAMPLE standard rate on whatever is left.
• Path L (consolidation loan): £5,000 at 11.9% EXAMPLE over 24 months with a £100 arrangement fee. The monthly payment is about £235.13, interest about £643, so the total to repay is about £5,743 including the fee.

All figures EXAMPLE, rounded. Interest after the 0% period is modelled monthly at the standard rate ÷ 12, the same convention our calculators use. Real cards may calculate interest daily and set their own minimum payments.

The pattern is clear. Paid off inside the 0% window, the transfer costs only its fee. Paid at the same monthly amount as the loan, it still comes out ahead in this EXAMPLE, because a year at 0% outweighs the higher rate afterwards. At around £192 a month the two paths cost about the same. Below that, the balance left at 24.9% grows the cost quickly: at £150 a month Path T takes 43 months and costs about £604 more than the loan. The cheaper-looking monthly payment is the expensive one.

Things the headline rate leaves out

• The revert rate. Write down the standard rate and the month the 0% ends. The monthly amount that clears it in time is the balance plus fee divided by the 0% months.
• Keeping the deal. Missing a payment can end a promotional rate early, and new spending on the card may be charged at a different rate.
• The loan’s fee and term. An arrangement fee and a longer term both raise the loan’s total. Put each offer through the APR / true cost calculator to see its fee-inclusive cost, and use the consolidation break-even calculator to compare it with keeping your current debts.
• Switching later. If you already hold a loan and are weighing a cheaper one, the refinance break-even calculator shows how long fees take to pay back.
• Long-running card balances. FCA rules require card providers to contact you if, over 18 months, you have paid more in interest, fees and charges than off the balance, and to offer help after 36 months. That is a sign to seek free debt advice, not to look for new credit.

Neither option is right for everyone, and this page does not suggest taking either. Both need a credit application, and the rate or 0% period offered may differ from these EXAMPLE figures. MoneyHelper suggests consolidation only helps if it clears the debts, costs less in total and the payments are affordable.

Practical checklist

• List every balance, rate and minimum — including cheap debt that may become dearer under the consolidation rate
• Compare face amount with the sum of balances; put arrangement and exit fees in one pot
• Record monthly change and fee-inclusive lifetime cost; fee break-even months need a monthly saving
• Calculators do not approve credit or guarantee a rate

Try the calculators

For the EXAMPLE above (£12,000 · 16.9% · 60 months · £195 fee vs the three debts), start with the consolidation break-even calculator. Change amount, rate, term and fee one at a time. Pair the APR / true cost calculator for a fee-adjusted view of a single offer. Clearer cost maths under stated assumptions — not a pitch to roll debts together.

What the figure is not

Lifetime-cost and break-even numbers here are labelled EXAMPLE. They are not a quote for a consolidation loan, not affordability advice, and not a promise that keeping separate debts or consolidating will suit your circumstances. Always check the lender’s disclosure and, if needed, free debt advice from a regulated body.

Sources

Product-norm wording only (no scraped rate tables): MoneyHelper — credit and debt; FCA — consumer credit. Balance transfer section: MoneyHelper — Transferring your credit card balance; MoneyHelper — Debt consolidation loans; FCA — Help for consumers in persistent credit card debt. Figures on this page are labelled EXAMPLE and are not a quote. Last checked 26 October 2026.

Disclaimer

This guide and all EXAMPLE figures are illustrative only. They are not personalised financial advice, not a credit offer, and not a recommendation to consolidate, to keep separate debts, or to take any new credit. LoanCalc Lab is not a lender. Rates, fees, early-settlement terms, day-count conventions and eligibility vary by product and lender. Always read the lender’s disclosure and regulated pre-contract information for your circumstances before you borrow or settle early.