0% purchase credit cards explained

A 0% purchase credit card charges no interest on new spending for a fixed introductory period, which means anything bought on the card during that window can be paid back gradually without interest adding to the cost. The longest deals on the market in September 2026 offer 26 months interest free¹. Once the promotional period ends, the card's standard rate takes over, and any balance left over starts accruing interest at that rate.

These cards are one of the cheapest ways to spread the cost of a large purchase, provided the balance is cleared before the offer runs out. They also carry the purchase protection of any credit card: spending on them has the added bonus of Section 75 protection, which can make the card provider jointly responsible if a purchase goes wrong². The conditions that matter are keeping up the monthly payments, staying within the credit limit, and knowing exactly what the 0% rate does and does not cover, because cash withdrawals, balance transfers and some other uses sit outside the offer.

Interest-free periods: from 3 to 27 months

The length of 0% purchase offers changes with the market, and it has moved considerably over the past few years. In February 2026 the best interest-free credit cards offered 0% periods of up to 25 months⁵. By September 2026 the longest deals offered 26 months¹. Two years earlier the picture was tighter: in March 2024 interest-free cards charged no interest for between three and 21 months, and the longest-lasting deal was 21 months, down from up to 24 months in February 2023. The average interest-free period among the top five cards on the market was 23 months a year before that, and 19.8 months in February 2024⁶.

The very wide range quoted for the market as a whole, three to 27 months, reflects that these cards are used to spread out the cost of repayments over a longer period, and that short and long offers sit side by side on the market at the same time². A card offering only a few months interest free is a different proposition from one offering over two years: the monthly amount needed to clear a given purchase before the offer ends is much higher on the short card.

The 0% promotional period is separate from the ordinary interest-free period that most credit cards offer on what you have bought if you pay off your bill in full⁷. Many cardholders also describe a 56 day interest free period applying to any payment as a specific feature of how credit cards work⁸. The distinction matters: the standard interest-free window only helps if the bill is cleared in full each month, while a 0% purchase offer allows the balance to be carried beyond that window without interest, for as long as the promotional period lasts and its conditions are met.

Who can get one and what credit limit to expect

The longest 0% offers are reserved for people with strong credit histories. Low or 0% interest credit cards are hard to get if you do not have a good credit rating⁹, and providers do not have to give you a credit card at all: an application may be refused if your credit score is low or you are not considered a good fit⁴. You might not be able to get a card or loan if you do not have a good credit score, which can happen if you have applied for lots of credit cards or missed a monthly payment¹⁰.

There are cards aimed at people whose history is imperfect, but they are a different product. In an FCA survey, 8% of credit card users said the card they chose was designed for people with no or poor credit history¹¹. Vanquis, for example, offers a purchase card with a 0% window, but you must make your purchase within the first 3 months of account opening to qualify for the 0% offer¹². Cards of this kind usually come with lower credit limits and higher standard rates than the headline 0% deals advertised elsewhere.

Two things are worth knowing before applying. First, consumers do not know what APR, credit limit, and in some cases the length of the 0% promotional period they will get before applying for a card, and the FCA has found many people have a poor understanding of credit card features and costs¹³. Second, the FCA's market study found that across the 0% balance transfer and reward ranges, some providers' key features or documentation could only be found after a consumer had applied for a card¹⁴. In practice this means the advertised offer is a representative one: the actual limit and sometimes the promotional length are confirmed only after a credit check.

The credit limit itself shapes how useful the card is. A limit that is too low for the planned purchase leaves the balance spread across more than one card, or the purchase part-funded another way. The FCA's research on the credit card market lists limited-time 0% purchase deals among its key features, alongside the fact that limits are set individually¹⁵. If a limit feels too low, it can sometimes be raised later, but asking for credit repeatedly can itself affect a credit file. The pages on applying for a credit card and credit card limits cover both points in detail.

What the 0% rate does not cover

A 0% purchase offer applies to spending on the card. It does not switch off the costs of other ways of using it.

• Cash withdrawals. Cash withdrawals attract a withdrawal fee, as well as a higher APR, and do not enjoy the interest-free period available for purchases. They are also recorded on your credit report¹. The page on withdrawing cash on a credit card explains the full cost.
• Balance transfers. Moving debt from another card onto the new one is a separate transaction. Most 0% balance transfer cards charge a balance transfer fee¹⁶, typically a one-off fee per transfer¹⁷, and some cards offer 0% interest deals for a limited period but charge for transferring a balance¹⁸. A purchase card's 0% window does not automatically apply to money moved across.
• Spending after the window closes. Purchases made after the promotional period ends are charged at the standard rate from the start, so the date the offer finishes matters as much as the date it begins.

The standard rate waiting at the end is substantial, and it applies to whatever balance is left over when the offer ends. Because the rate varies from card to card, the rate that will apply after the 0% period is set out in each card's own terms before you take it out. The page on what rate you move to when a 0% offer ends covers this transition, and how credit card interest is charged explains the mechanics.

Keeping the 0% rate: payments and credit limits

The promotional rate is conditional. Most zero% interest deals only last for a number of months, and a lender may be able to end a zero% interest deal early if you fall behind with regular payments¹⁹. That means the single most important habit is paying at least the minimum amount every month, on time.

The minimum repayment itself is typically around 3% of the balance due or £5, whichever is higher⁴. Since April 2011, for new credit card contracts, firms are required to ensure the minimum repayment is set at a level sufficient to cover interest rates and other fees on the account, plus 1% of the amount outstanding²⁰. This rule guarantees the balance shrinks slightly each month, but only slightly: paying only the minimum is a slow and expensive way to clear debt once the 0% period has ended. If you cannot pay in full, make sure you make the minimum payments²¹.

Staying within the credit limit matters too. Going over the limit can trigger charges and may count as a breach of the card's terms, alongside a missed payment. Both events can end the promotional rate early and both appear on a credit file, where they affect the rates offered on future borrowing. The pages on missing a credit card payment, losing a promotional rate after a missed payment and late payment and over-limit charges set out the rules and what a provider is allowed to charge.

A practical way to protect the offer is to set up a direct debit for at least the minimum repayment, then pay more on top whenever possible. The interest-free window is designed to be used: a balance of any size costs nothing in interest during it, so the cheapest outcome is a repayment plan that clears the debt before the final month. The page on paying your credit card bill explains the payment options, and ways to clear card debt sooner covers repayment strategies.

Purchase card or balance transfer card: how each one behaves

The two main types of 0% card look similar but do different jobs, and using the wrong one for the job costs money.

A balance transfer card freezes the interest on existing debt for a set period, giving you time to clear the debt without worrying about interest¹⁷. But you need enough time to clear the debt and to do it as cheaply as possible, because the transfer fee is paid up front¹⁶. A purchase card instead lets you borrow interest free for new spending²³. Neither rate automatically covers the other's territory: a purchase card usually charges interest on a balance moved across, and a balance transfer card usually charges interest on new purchases, which is a trap for anyone who spends on a card taken out for a transfer.

For someone deciding between the two, the question is where the debt is. If it is a purchase not yet made, a 0% purchase card avoids interest from the start. If it is a balance already sitting on another card, a purchase card does nothing for it, and a balance transfer is the tool designed for the job. The comparison page on balance transfer vs money transfer and the guide to the types of credit card set out the full range side by side.

Section 75 protection on purchases

Spending on a 0% purchase card carries the same legal protection as any credit card. Section 75 is the protection offered when you buy things with a credit card²⁴. If you paid for what turned out to be bogus goods or services by credit card, and the cost was more than £100 and less than £30,000, Section 75 applies³. The same range is often written as over £100 and up to £30,000, and the claim can be made against the card provider directly, which matters when the seller has disappeared or gone bust.

The protection has edges, and they catch people out:

• It applies to credit card purchases only, not debit card purchases²⁵, and it does not apply to charge cards or debit cards²⁶. Section 75 does not include cases where the goods or services were bought with a debit card, charge card or prepaid card²⁷.
• If you paid any part of the cost by credit card, you can use Section 75, as long as the total cost of the item is more than £100 and no more than £30,000²⁸. Part payment on the card is enough; the whole item does not need to go on it.
• Additional cardholders can lose out: unless the primary cardholder also benefits from the purchase, a family holiday perhaps, the additional cardholder loses Section 75 protection²⁹.
• Section 75 might not apply if the customer has used a credit card to put funds into a standard e-money account and then used that account to buy something, the Financial Ombudsman Service has warned³⁰.

Buy now pay later sits differently again: with BNPL you have the same Section 75 protections that you have with a purchase on a credit card³¹, though the products work in very different ways. The pages on Section 75, the £100 to £30,000 threshold and when Section 75 does not protect you cover the rules in full, and how to make a Section 75 claim gives the process step by step.

Where to get help if repayments become difficult

Credit card debt is one of the most common problems free debt advice services see. Around 70% of the people StepChange helps have a credit card debt³², and seven in ten, 70%, of its clients had credit card debt in October 2025³³. The proportion of clients with credit card debts has moved over time: it stood at 65% in November 2023, down two percentage points from October that year³⁴.

If repayments become hard, the first step is to tell the card provider. If you are not able to pay back what you owe, a company must help if you are struggling, and this can include reducing or cancelling any interest or fees³⁵. Regulators' vulnerability guidance expects firms to offer customers access to holistic debt advice to help them maximise their incomes, particularly at the first indication that a customer is struggling to pay, with the customer's consent³⁶. During the coronavirus period some providers went further: Nationwide offered removal of interest charges for members in difficulty and a three-month payment holiday reducing monthly payments to £1 for those up to date, and TSB let affected customers request an emergency credit limit increase and a three-month payment holiday subject to eligibility³⁷. Those specific schemes have passed, but the expectation that a firm supports a struggling customer has not.

Free, independent help is available and costs nothing:

• StepChange Debt Charity offers an online debt advice tool to get the right advice for your situation³⁸, and its guidance on credit card debt explains the options³².
• Citizens Advice sets out what to do if you are struggling to pay your credit card¹⁰.
• PayPlan provides free impartial debt advice, discussing ways to make debt more affordable and helping to find a solution³⁹.
• Debt advice linked from consumer bodies in Northern Ireland is listed through the Consumer Council's help and support pages³⁹.

Practical steps matter alongside advice. If income has dropped, the recommended action is to stop using credit cards or stop adding to credit card debt⁴⁰. If you cannot pay in full, make sure you make the minimum payments²¹. Complaints about how a provider has handled a struggling borrower can go to the Financial Ombudsman Service, which received credit card enquiries amounting to 4% of its helpline workload in the period it reported in 2013⁴¹; the page on complaining about a credit card provider explains the route. The section page on help with credit card debt and the wider debt guide list every free option, including dedicated pages for Scotland and Northern Ireland.