How long are the best 0% purchase credit card deals in 2026?

As of March 2026, the longest 0% purchase credit card offers up to 26 months interest-free. Several major high street providers offer between 23 and 25 months. The exact period offered depends on the applicant's credit history, and not all applicants will receive the maximum advertised duration.

What happens if a 0% credit card balance is not paid off in time?

Once the 0% promotional period ends, the remaining balance starts accruing interest at the card's standard purchase rate — typically around 24.9% or higher. Making only minimum payments at this stage can mean years of additional repayments and hundreds of pounds in interest charges.

Should existing credit card debt be consolidated with a personal loan?

It can make financial sense if the personal loan rate is significantly lower than the credit card APR — which in 2026 is often the case. However, it is important not to run up new spending on the cleared credit cards afterwards, as this can lead to a worse overall debt position. Free debt advice from organisations such as MoneyHelper or StepChange is recommended before making this decision.

Personal Loan vs Credit Card in 2026, Which Actually Costs Less and When It Matters

Q: Is a personal loan cheaper than a credit card in the UK?

It depends on the type of card and how quickly the balance is repaid. Standard credit cards charge an average APR of around 36% in 2026, making them significantly more expensive than personal loans (which start from 5.6%). However, a 0% purchase credit card can cost nothing in interest if the balance is cleared within the promotional period.

Q: Does a personal loan affect a mortgage application?

Yes. Mortgage lenders include personal loan repayments in their affordability assessments, which reduces the amount of income available for mortgage repayments. Paying off or reducing existing loan debt before applying for a mortgage can improve the amount offered.

[Last Updated: 16 March 2026]

Is it actually cheaper to borrow £5,000 on a personal loan — or could a 0% credit card quietly save hundreds more?

It’s a question that catches out more borrowers than most people realise, particularly in 2026, when the gap between personal loan rates and standard credit card APRs has widened to its largest in over a decade. With the Bank of England base rate sitting at 3.75% as of February 2026 and the average credit card APR climbing above 36%, the cost difference between these two forms of borrowing is no longer marginal — it could run into hundreds, even thousands of pounds over a typical repayment period. At the same time, a growing number of 0% purchase cards now offer interest-free periods of up to 26 months, which complicates the picture further. For anyone weighing up these options — whether for a planned purchase, debt consolidation, or an unexpected expense — the right choice depends on the amount, the timeline, and how the borrowing is managed. This guide from bestmortgagesforyou.co.uk breaks down the real costs, the hidden traps and the scenarios where each option makes the most financial sense.

The answer, as with most things in personal finance, is not as straightforward as a headline rate might suggest.

Key Takeaways

The average UK credit card APR reached 36.32% in January 2026, while the cheapest personal loans start from 5.6% — but a 0% purchase card used wisely can cost nothing at all
Personal loans offer fixed monthly repayments and lower interest rates for larger amounts (typically £7,500 and above), making them the more predictable option for planned borrowing
0% credit cards can be the cheapest way to borrow short-term — provided the balance is cleared before the promotional period ends and no payments are missed
Section 75 of the Consumer Credit Act 1974 gives credit card purchases between £100 and £30,000 an extra layer of legal protection that personal loans do not provide
Both credit cards and personal loans appear on credit reports and can affect future mortgage affordability assessments, but in different ways

Table of Contents

What a Personal Loan and a Credit Card Actually Do Differently

Before comparing costs, it helps to understand how these two products work in practice — because the mechanics of each determine how much a borrower ultimately pays.

How a Personal Loan Works in the UK

A personal loan — sometimes called an unsecured loan — provides a fixed lump sum, typically between £1,000 and £25,000, which is repaid in equal monthly instalments over a set term (usually one to seven years). The interest rate is almost always fixed, meaning repayments remain the same from the first month to the last.

Once the funds are deposited into the borrower’s current account, the money can be used for almost any purpose: home improvements, a car purchase, a wedding, or consolidating existing debts. Most high street banks, building societies and online lenders offer personal loans, and eligibility is assessed through an affordability check and credit search. Crucially, only 51% of approved applicants are guaranteed to receive the advertised ‘representative APR’ — the rest may be offered a higher rate based on individual credit history.

How Credit Card Borrowing Works

A credit card provides a revolving line of credit up to a set limit, which can be spent, repaid and spent again. There is no fixed repayment schedule — cardholders must make at least the minimum monthly payment, but can choose to repay more or less (above that minimum) each month.

If the balance is paid in full by the statement due date, no interest is charged at all. However, if any balance is carried over, interest accrues daily at the card’s APR — which, as of early 2026, averages well above 24% for standard purchase rates and significantly more for credit builder or store cards. Some cards offer introductory 0% interest periods on purchases or balance transfers, which can range from three to 26 months depending on the provider and the applicant’s creditworthiness.

The Real Cost Comparison in 2026 — Rates, Fees and Total Repayment

Here’s where the numbers start to tell the real story.

Current Personal Loan Rates (March 2026)

Personal loan rates in 2026 vary considerably depending on the amount borrowed. As a general rule, borrowing between £7,500 and £15,000 tends to attract the most competitive rates, while smaller amounts (under £5,000) often carry higher APRs.

Loan Amount	Average APR	Best Available APR	Typical Term
£1,000 – £4,999	10.05%	~7.4%	1 – 3 years
£5,000 – £7,499	~7.5%	~5.9%	1 – 5 years
£7,500 – £15,000	6.33%	5.6%	1 – 5 years
£15,001 – £25,000	~6.5%	5.6%	1 – 5 years

Source: Which?, Finder, MoneySuperMarket. Figures correct as of March 2026. Rates are subject to change based on individual circumstances and lender criteria.

Current Credit Card APRs (March 2026)

Credit card rates tell a very different story — and the headline figures can be surprising.

Card Type	Typical Representative APR	0% Purchase Period	Revert Rate After 0%
Best 0% purchase cards	24.9% (variable)	Up to 26 months	24.9%+
Standard purchase cards	24% – 30%	None or 3 – 6 months	N/A
Rewards / cashback cards	28% – 35%	Rarely offered	N/A
Credit builder cards	36% – 42.9%+	None	N/A

Source: NimbleFins, Finder, Bank of England. Figures correct as of March 2026. Based on published rates as of March 2026 and subject to change.

According to Bank of England data, the effective interest rate on interest-charging credit cards rose to 21.75% in January 2026 — and the average representative APR across all UK credit cards reached 36.32%, the highest in over 30 years.

Why 0% Credit Cards Look Like Free Money (But Rarely Are)

A 0% purchase card offering up to 26 months of interest-free borrowing sounds like the obvious winner in any comparison — and for disciplined borrowers, it often is. But there are catches that can turn a seemingly free deal into an expensive one.

Balance Transfer Fees and What They Add to the Real Cost

While 0% purchase cards don’t usually charge a fee for new spending, 0% balance transfer cards almost always do. As of March 2026, typical balance transfer fees sit between 2.99% and 3.49% of the amount transferred. On a £5,000 balance, that’s an upfront cost of £150 to £175 — which reduces the effective saving and should be factored into any comparison.

It’s also worth noting that some combination cards (offering both 0% purchases and 0% balance transfers) apply the fee only to the transfer portion, not to new spending. Reading the terms carefully before applying is essential.

What Happens When the 0% Period Ends

Here’s the thing — the promotional period always ends. And when it does, any remaining balance starts accruing interest at the card’s standard rate, which typically sits around 24.9% or higher. For a borrower who fails to clear £3,000 before a 24-month 0% period expires, the cost can escalate quickly. At 24.9% APR, making only the minimum payment (usually around 2.5% of the balance or £25, whichever is greater) could mean years of additional repayments and hundreds of pounds in interest.

A common misconception is that the cardholder will receive a reminder or warning before the 0% period ends — but this is not guaranteed. The FCA’s Consumer Duty regulations require firms to act in customers’ interests, but the burden of tracking the promotional end date still falls largely on the individual.

Worked Examples — Borrowing £3,000 and £5,000 in 2026

Numbers make the difference clearer than any general advice can. The following examples use rates available as of March 2026.

Scenario One — £3,000 Paid Off Within a 0% Period

A borrower takes out a 0% purchase card with a 24-month interest-free period and spends £3,000. By dividing the balance equally over 24 months, the monthly repayment is £125 — and the total cost is exactly £3,000. No interest, no fees.

By comparison, a £3,000 personal loan at 10.05% APR over 24 months would cost approximately £3,318 in total, with monthly repayments of around £138. That’s roughly £318 more than the 0% card.

In this scenario, the 0% credit card wins — provided the balance is cleared on time.

Scenario Two — £5,000 Over Two Years on a Personal Loan vs a Standard Credit Card

Now consider a larger amount where a 0% card may not cover the full balance, or where the borrower doesn’t qualify for a long promotional period.

Factor	Personal Loan (7.5% APR)	Credit Card (24.9% APR)
Amount borrowed	£5,000	£5,000
Repayment term	24 months (fixed)	24 months (target)
Monthly repayment	~£225	~£264
Total amount repaid	~£5,394	~£6,340
Total interest paid	~£394	~£1,340

Source: Illustrative calculation based on published rates as of March 2026. Actual costs depend on individual APR offered.

The difference in this example is approximately £946 — nearly £1,000 more on the credit card over the same period. That’s a meaningful sum for most households.

When a Personal Loan Is the Smarter Option

There are clear situations where a personal loan tends to be the more cost-effective and lower-risk form of borrowing.

Larger Purchases and Home Improvements

For borrowing amounts above £5,000 — particularly in the £7,500 to £15,000 range — personal loans typically offer the most competitive rates. A new kitchen costing £10,000, for instance, would attract an APR as low as 5.6% from leading lenders, compared with a standard credit card rate of 24% or more. The fixed repayment structure also helps with budgeting over several years.

Debt Consolidation

Borrowers juggling multiple credit card balances may find that rolling existing debts into a single personal loan reduces both the overall interest rate and the number of monthly payments to manage. According to MoneyHelper, a debt consolidation loan can simplify repayments, though it’s important to avoid running up new debt on the cleared cards afterwards.

Predictable Monthly Repayments

Because almost every UK personal loan carries a fixed rate, the monthly repayment amount remains the same from start to finish — regardless of what happens to the Bank of England base rate. For borrowers who prefer certainty and a clear end date, this structure is often less stressful than the open-ended nature of credit card debt.

When a Credit Card Makes More Sense

Credit cards are not always the more expensive option — and in certain circumstances, they offer advantages that a personal loan simply cannot match.

Short-Term Spending With a 0% Purchase Card

For planned spending that can realistically be repaid within 12 to 26 months, a 0% purchase card is hard to beat. As of March 2026, the longest available 0% purchase period is 26 months (TSB Platinum Purchase), with several major providers offering up to 25 months. Used with discipline — setting up a direct debit for a fixed monthly amount that clears the balance before the promotional period expires — this can be the cheapest form of borrowing available.

Section 75 Protection on Purchases Between £100 and £30,000

This is the credit card advantage that many borrowers overlook. Under Section 75 of the Consumer Credit Act 1974, the credit card provider is jointly liable with the retailer or supplier for purchases costing between £100 and £30,000. That means if a supplier goes bust, fails to deliver goods or provides something faulty, the card issuer is legally required to refund the amount.

This protection does not apply to personal loans, debit card transactions, or purchases made via third-party payment processors such as PayPal. It’s particularly valuable for booking holidays, buying electronics or paying for building work — all situations where things can go wrong and large sums are at stake.

Building a Credit History

For those with limited or no credit history — including younger borrowers and those new to the UK — a credit card used responsibly (spending modest amounts and repaying in full each month) can help establish a positive credit file. A personal loan achieves something similar through consistent repayments, but a credit card offers more flexibility for those not yet ready to commit to fixed monthly outgoings.

Common Myths About Personal Loans and Credit Cards

A number of misconceptions circulate on forums and social media that could lead borrowers toward a more expensive decision.

‘Credit Cards Are Always More Expensive’

A common belief is that credit card borrowing always costs more than a personal loan. However, according to the figures outlined above, a 0% purchase card used correctly can cost nothing at all in interest — making it significantly cheaper than even the best-rate personal loan. The key variable is not the product itself but the behaviour of the borrower: whether the balance is repaid within the interest-free window.

‘A Personal Loan Won’t Affect a Mortgage Application’

In practice, the FCA requires mortgage lenders to carry out detailed affordability assessments. Any active personal loan will reduce the amount of income available for mortgage repayments in the eyes of an underwriter. Outstanding loan payments are deducted from income, directly lowering the maximum mortgage amount offered. This applies equally to credit card debt, where lenders typically factor in a percentage of the credit limit — even if the balance is low.

How Either Option Could Affect a Future Mortgage Application

This is a point worth exploring further, especially for first-time buyers or those planning to remortgage in the near future. Mortgage lenders assess both types of borrowing during affordability calculations, but they look at them slightly differently.

An active personal loan reduces disposable income by the exact monthly repayment amount — so a £200-per-month loan directly lowers borrowing power. Credit card debt, on the other hand, is assessed using either the outstanding balance or a percentage of the credit limit, depending on the lender. Some lenders assume a repayment rate of 3% to 5% of the balance per month, even if the minimum payment is lower. Carrying a credit card with a £5,000 balance could therefore be treated as a £150 to £250 monthly commitment.

Bear in mind, paying off unsecured debt before applying for a mortgage can materially improve the amount offered. It may be worth speaking to a qualified mortgage adviser to understand how individual debt situations affect borrowing capacity.

How Each Option Shows Up on a Credit Report

Both personal loans and credit cards appear on credit reports held by the three main UK credit reference agencies — Experian, Equifax and TransUnion. However, they affect credit scoring in different ways.

A personal loan appears as a fixed-term debt that reduces over time. As long as repayments are made on time, the loan demonstrates reliable repayment behaviour and contributes positively to the credit file. A credit card, by contrast, affects something called the ‘credit utilisation ratio’ — the percentage of available credit currently in use. Keeping utilisation below 30% of the total credit limit is widely recommended. Using 90% or more of a credit limit can significantly lower a credit score, even if all minimum payments are met.

Key Factors to Consider Before Borrowing

Before choosing between a personal loan and a credit card, it’s worth pausing to consider the following:

Amount needed — Personal loans tend to offer better rates for amounts above £5,000; credit cards may be more flexible for smaller sums or uncertain totals
Repayment timeline — A clear, fixed repayment plan suits a personal loan; a shorter timeline (under two years) may suit a 0% card
Discipline — If there’s a risk of only making minimum payments or spending beyond what’s needed, a fixed-term loan removes the temptation
Purchase protection — Section 75 applies only to credit card purchases between £100 and £30,000
Mortgage plans — Anyone planning to apply for a mortgage within six to 12 months should consider how either form of borrowing will appear on an affordability assessment
Eligibility — Running an eligibility or soft credit check before applying (available from most major lenders and comparison sites) helps avoid unnecessary hard searches that can lower a credit score

Staying Safe — Fraud Awareness and Where to Report Problems

Borrowers should be aware that unsolicited calls, texts or emails offering pre-approved loans or credit cards are often scams. The FCA’s ScamSmart tool can be used to check whether a firm is genuinely authorised.

If something goes wrong with a loan or credit card — whether it involves mis-selling, unfair charges, or a dispute with a lender — the following resources can help:

Financial Conduct Authority (FCA) — fca.org.uk — Regulates all UK financial firms. The FCA Register can be used to verify a lender’s authorisation
Financial Ombudsman Service — financial-ombudsman.org.uk — Resolves disputes between consumers and financial businesses. Helpline: 0800 023 4567
Action Fraud — actionfraud.police.uk — The national reporting centre for fraud and cybercrime. Helpline: 0300 123 2040
MoneyHelper — moneyhelper.org.uk — Free, impartial financial guidance backed by the FCA. Helpline: 0800 138 7777
Citizens Advice — citizensadvice.org.uk — Provides free help with debt problems and consumer rights

Anyone struggling with debt is encouraged to seek free advice before taking on further borrowing. Organisations such as StepChange (0800 138 1111) and National Debtline (0808 808 4000) offer confidential support.

Closing

Choosing between a personal loan and a credit card in 2026 comes down to the amount, the timeline and — most importantly — the borrower’s ability to stick to a repayment plan. Neither option is universally ‘better’. A 0% purchase card can genuinely be the cheapest way to borrow for a planned expense, provided the balance is cleared before the promotional rate expires. A personal loan, meanwhile, offers structure, lower interest on larger sums and the certainty of a fixed end date. In both cases, checking eligibility through a soft search before applying is a sensible first step — and for anyone unsure, speaking to an independent, FCA-regulated financial adviser can help clarify which route is most suitable.

Disclaimer: The information on bestmortgagesforyou.co.uk is for general informational purposes only and does not constitute financial advice. Mortgage products, rates and eligibility criteria change frequently. Always consult a qualified, FCA-regulated mortgage adviser before making financial decisions. This site is not affiliated with the FCA, Bank of England, or any lender. All rates cited in this article are based on published data as of March 2026 and are subject to change based on individual circumstances and lender criteria.

For a broader look at how borrowing decisions affect mortgage applications, see How Debt Affects Mortgage Affordability in the UK. Those exploring home improvement finance specifically may also find Remortgage vs Personal Loan for Home Improvements useful. First-time buyers weighing up borrowing options ahead of a purchase can read First-Time Buyer Mortgage Guide 2026.

Sources

Frequently Asked Questions

1 Is a personal loan cheaper than a credit card in the UK?

It depends on the type of card and repayment behaviour. Standard credit cards in 2026 average around 36% APR — far more expensive than personal loans starting from 5.6%. However, a 0% purchase card can cost nothing in interest if the balance is cleared within the promotional period. For larger sums repaid over a longer term, a personal loan is almost always cheaper.

2 Does a personal loan affect a mortgage application?

Yes. Mortgage lenders include active personal loan repayments in affordability assessments, which directly reduces the maximum mortgage amount offered. Credit card balances are also factored in, typically at 3% to 5% of the outstanding balance. Paying off existing debts before applying for a mortgage can materially improve borrowing capacity.

3 What is Section 75 protection and does it apply to personal loans?

Section 75 of the Consumer Credit Act 1974 makes the credit card issuer jointly liable with the supplier for purchases between £100 and £30,000. Cardholders can claim a refund from the card company if goods are faulty, not delivered, or the supplier goes bust. This protection does not apply to personal loans, debit cards, or purchases made through third-party processors such as PayPal.

4 How long are the best 0% purchase card deals in March 2026?

The longest 0% purchase deal currently available is up to 26 months. Several other high street providers offer between 23 and 25 months interest-free on new purchases. The exact period offered depends on the applicant’s creditworthiness — not everyone receives the maximum advertised duration.

5 What happens when a 0% credit card promotional period ends?

Any remaining balance begins accruing interest at the card’s standard purchase rate — typically 24.9% or higher. Making only minimum payments at this stage can result in years of additional repayments and significant interest charges. Setting up a direct debit for a fixed monthly amount from the start is the most reliable way to ensure the balance is cleared before the 0% period expires.

6 Should credit card debt be consolidated with a personal loan?

It can make sense when the personal loan rate is significantly lower than the credit card APR — which is often the case in 2026. However, it is important not to run up new spending on the cleared cards, as this can worsen the overall debt position. Free advice from MoneyHelper (0800 138 7777) or StepChange (0800 138 1111) is recommended before making this decision.

Exploring mortgage and borrowing options? Visit bestmortgagesforyou.co.uk for more guides.

Nadya Putri Maharani

Content Writer & SEO Specialist – Web

Young content writer and SEO specialist from Bandar Lampung. Graduate in Communication Studies from the University of Bandar Lampung, focused on delivering content about buy-now-pay-later services, financial tips, and money-making opportunities relevant to Gen Z and millennials.