Answers · UK 2025/26
Is a credit union loan cheaper than a bank loan?
Credit unions are legally capped at charging a maximum of 3% interest per month (about 42.6% APR) on loans, which sounds high but is often significantly cheaper than payday loans, guarantor loans, or logbook loans for people who wouldn't qualify for a mainstream bank's best rates. For borrowers with good credit, a mainstream bank or building society personal loan will usually still be cheaper, but credit unions can be the more affordable, ethical option for those with limited or poor credit history.
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Credit unions occupy a distinctive space in the UK lending market, combining a not-for-profit, member-owned structure with a legal interest rate cap that protects borrowers from the very high costs charged by some other forms of higher-risk lending. **What is a credit union** A credit union is a financial co-operative owned and controlled by its members, typically organised around a local community, employer group, or common interest, offering savings accounts and loans exclusively to its members. Because credit unions are not-for-profit and don't answer to external shareholders demanding maximum profit, they can often offer more favourable and flexible lending terms than commercial lenders targeting similar higher-risk customers. **The legal interest rate cap** UK credit unions are legally restricted to charging a maximum of 3% interest per month (which compounds to an APR of around 42.6%) on any loan -- this cap applies regardless of the borrower's credit history, meaning credit unions cannot charge the extremely high rates sometimes seen with payday loans, guarantor loans, or logbook loans, even for higher-risk borrowers. **How this compares with mainstream bank loans** If you have a good credit history and stable income, a mainstream bank or building society personal loan will often be considerably cheaper than a credit union loan, since banks compete aggressively for low-risk borrowers with rates that can be well under 42.6% APR, sometimes in the single digits for the best-qualified applicants. Credit unions become comparatively more attractive specifically for borrowers who would either be declined by mainstream lenders, or only offered a high-rate loan close to or above the credit union's capped rate anyway. **Membership requirements** Unlike a bank, you typically need to become a member of a specific credit union to borrow from it, which usually involves living or working in its catchment area, or belonging to a specific employer, community, or association it serves, and often requires opening a small savings account alongside any loan. **A more holistic, relationship-based approach to lending** Credit unions often take a more personal, relationship-based approach to assessing affordability compared with the largely automated credit-scoring used by many mainstream and high-cost lenders, which can help borrowers with a thin or damaged credit file, who might otherwise be pushed towards far more expensive options, get access to reasonably priced credit. **Savings as well as loans** Many credit unions also encourage members to save regularly alongside taking out a loan, helping build a savings habit and improve future financial resilience, which is part of the broader ethical, member-focused mission distinguishing credit unions from purely profit-driven lenders. **Practical tip** Use the Find Your Credit Union service (via the Association of British Credit Unions or similar directories) to check whether you're eligible to join a credit union in your area or through your employer, and always compare the credit union's quoted APR directly against any mainstream bank loan offer you receive before deciding.
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This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.