Overview
A consolidation loan replaces several balances with one new borrowing agreement. It can simplify payment dates and reduce interest, but neither result is automatic.
The monthly payment is only one part of the decision. You also need to know how long you will pay, the total amount leaving your bank account and whether the arrangement changes the security behind the debt.
Quick Answer (Read This First)
Consolidation is most useful when the new loan is affordable, reduces the overall cost after fees and is followed by a plan that prevents the cleared balances building up again. MoneyHelper recommends checking all of those points before borrowing. MoneyHelper: debt consolidation loans.
A lower monthly payment can come from a lower rate, a longer term, or both. Ask which change is doing the work.
Start With What It Costs to Clear the Old Debts
List each balance, rate, required payment and any promotional expiry date. For fixed loans, request an early settlement figure rather than assuming the balance displayed in an app is the amount needed to close the agreement.
Settlement calculations can include additional interest under the agreement and applicable rules. Santander, for example, explains that its calculation can include up to 58 days' interest for loans originally taken over more than twelve months. That is a lender example, not a charge to assume on every product. Santander: early loan repayment.
Record when each quote expires. If you cannot repay the old accounts for several weeks, obtain updated figures before relying on a particular loan amount.
Compare the Same Repayment Period First
Here is an illustration for £12,000, with fixed nominal annual interest divided into monthly rates, equal monthly repayments and no fees. These are calculated examples, not available offers or quoted APRs.
| Illustration | Repayment period | Approximate monthly payment | Approximate total repaid |
|---|---|---|---|
| Existing borrowing at 15% | 36 months | £415.98 | £14,975 |
| Replacement loan at 9% | 36 months | £381.60 | £13,737 |
| Replacement loan at 9% | 60 months | £249.10 | £14,946 |
The three-year replacement saves about £1,238 before fees. Extending the same lower-rate loan to five years reduces the monthly payment much further, but saves only about £29 against the first illustration.
If the five-year option also required a £300 fee paid separately, its total outlay would become about £15,246. If a fee is financed instead, include the interest charged on it as well.
Actual credit cards do not necessarily follow a fixed repayment schedule. To compare a card balance fairly, model a realistic planned monthly payment and include any rate change. A minimum-payment estimate and a fixed-term loan quote describe different repayment behaviours.
Decide Whether the Payment Fits Your Real Budget
Work from income after essential spending, irregular bills and existing commitments. A loan instalment that fits only by putting food or travel back on a credit card has not resolved the shortfall.
For example, a £250 loan payment may look manageable beside £420 of old repayments. But if the household already needs £150 of card spending each month to cover ordinary costs, the new agreement can leave both the loan and a growing card balance to repay.
If essentials are already unaffordable, get free debt advice before making another application. Our priority-debt guide explains why the consequences of non-payment matter alongside interest rates.
Check Whether Your Home Becomes Security
A secured consolidation loan can turn debts such as unsecured cards into borrowing secured against your home. If payments are not maintained, the home can be at risk.
MoneyHelper distinguishes secured and unsecured borrowing and explains the consequences of security. A lower rate does not, by itself, compensate for that change in risk. MoneyHelper: secured and unsecured borrowing.
If consolidation involves a remortgage, calculate the cost of the added debt over its actual repayment period. Spreading a modest card balance across a long mortgage term can make the monthly addition look small while leaving interest running for years.
Make a Plan for the Cleared Accounts
Confirm that each old creditor receives enough to settle the intended balance. Keep the closure or zero-balance confirmation and allow for any final adjustment.
Then decide how you will prevent renewed borrowing. That might mean removing saved card details from shopping accounts, reducing access to unused credit or changing how irregular bills are funded. Choose actions that address why the balances arose.
If only one expensive card needs attention, compare a balance transfer rather than moving every debt automatically. For misleading sales tactics and arrangement fees, read our consolidation red-flags guide.
Frequently Asked Questions
Browse all debt guides. This is general information, not a personal loan recommendation. Sources were checked on 9 September 2026.
