Debt Consolidation Calculator UK 2025 - Is Consolidating Your Debts Worth It?
Debt consolidation combines multiple debts into a single loan, ideally at a lower interest rate, reducing monthly payments and total interest paid. But it is not always the right answer — consolidation can cost more overall if the term is extended, and some debts should not be consolidated. This calculator compares your current debt burden against a consolidation loan to show whether it saves money.
Consolidation works best when the new rate is significantly lower and the term is not much longer than your current payoff timeline. Warning: do not consolidate secured debt (mortgage) with unsecured debt - you risk your home. If total debt exceeds £10,000 and you cannot see a realistic path to repayment, speak to a free debt charity first (StepChange: 0800 138 1111).
When Debt Consolidation Makes Sense
Debt consolidation is a useful tool in the right circumstances. It works best when:
- The consolidation loan APR is genuinely lower than the weighted average of your existing debts — particularly if you have high-rate credit card debt (20–30%+ APR) that can be replaced by a personal loan at 7–12% APR.
- The repayment term is similar or shorter than your current payoff timeline — extending a 3-year payoff to a 10-year loan at a lower rate can still cost more in total interest.
- You have the discipline not to run up new credit card debt after clearing the cards — otherwise you end up with both the consolidation loan and new credit card debt.
- Your credit score qualifies you for a good rate — consolidation loans for people with poor credit can be very expensive (APRs of 40%+) and provide little benefit.
Free Debt Advice Alternatives
Before taking out a consolidation loan, always explore free alternatives. Free debt charities can negotiate directly with creditors on your behalf and may achieve interest freezes or payment plans without you taking on new debt:
- StepChange Debt Charity — 0800 138 1111 (free) — stepchange.org
- National Debtline — 0808 808 4000 (free) — nationaldebtline.org
- Citizens Advice — local branches or citizensadvice.org.uk
- MoneyHelper — 0800 138 7777 (free) — moneyhelper.org.uk
These services are completely free. Never use a fee-charging debt management company when free equivalents exist.
Debt Relief Options Beyond Consolidation
| Option | Best for | Credit impact |
|---|---|---|
| Debt Management Plan (DMP) | Manageable debt, needs more time | Moderate (defaults remain) |
| Individual Voluntary Arrangement (IVA) | Debt £10,000–£100,000+, stable income | Severe (6 years on credit file) |
| Debt Relief Order (DRO) | Debt under £30,000, income under £75/month surplus | Severe (6 years) |
| Bankruptcy | Unmanageable debt, no assets | Severe (6 years) |
Frequently Asked Questions
Almost always unsecured. A secured loan (secured against your home) will have a lower interest rate, but you are putting your home at risk to consolidate unsecured debts. If you subsequently cannot keep up with the secured loan, your home could be repossessed. This converts what was manageable unsecured debt into a potentially catastrophic secured debt. Never secure unsecured debt against your home without taking specialist financial advice.
Possibly, but the rates available to you may make consolidation uneconomical. Lenders will offer higher APRs (sometimes 40%+) for poor credit applicants. Check whether the rate offered is actually lower than your current debts before proceeding. Use eligibility checkers that do a soft search (not affecting your score) before making a full application.
A 0% balance transfer card is often better than a consolidation loan for credit card debt, if you qualify. You pay a transfer fee (typically 2–3%) but pay 0% interest for an introductory period (often 12–24 months). If you can clear the balance within the 0% period, this is usually the cheapest option. The risk is that the rate jumps significantly at the end of the introductory period if you have not cleared it.