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Credit Card Statement Explained: Minimum Payments and Interest (UK 2026)

Every credit card statement contains a buried warning that shows the true cost of paying only the minimum. Here is what every section means.

The Clarify Team

— 9 min read
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From January 2026, UK credit card providers must now proactively contact customers who have been in persistent debt for 36 months and must offer a repayment plan that clears the balance within three to four years. If you have been paying minimums for a while, your statement may already include one of these notices.

At a glance

  • Your minimum payment is calculated as a percentage of your balance or a fixed floor (often £25) — whichever is higher. Paying only the minimum can mean it takes a decade or more to clear what you owe.
  • Every credit card statement must show how long it will take to repay your balance if you only pay the minimum, and what it would cost. Those two figures are often the most useful numbers on the page.
  • The "interest-free period" only applies if you pay your full statement balance by the due date. If you carry any balance, interest begins accruing from the day each purchase was made.
  • Cash advances and balance transfers usually attract a different, higher rate than purchases, and are shown separately on your statement.
  • A "persistent debt" notice is triggered after 18 and 36 months of paying more in interest and charges than off your actual debt. Your provider is required by the FCA to send it — it is not a threat, it is a regulatory obligation.
  • Not financial advice: This article explains how credit card statements work in plain English. For your specific situation, speak to a regulated financial adviser or contact the free MoneyHelper service (0800 138 7777).

Why your credit card statement is harder to read than it should be

Most people glance at two numbers on their credit card statement: the balance, and the minimum payment. They pay the minimum, carry on, and assume everything is under control. But the statement is actually telling you something much more important — it is showing you the real cost of that decision.

UK regulations require your provider to display a minimum payment warning: the exact number of years it will take to clear your balance if you only ever pay the minimum, and the total interest you will pay over that time. That figure can run to four, five, or even ten times your original purchases. Most people scroll straight past it.

This guide breaks down every section of a UK credit card statement — from the interest calculation mechanics to the notices your provider is legally required to send — so you know exactly where you stand and what each line is actually telling you.

The sections on every credit card statement

Account summary

The top of your statement contains three key figures: your opening balance (what you owed at the start of the period), your closing balance (what you owe now), and your credit limit. The difference between your closing balance and your credit limit is your available credit — providers call this your "available to spend" figure.

If your closing balance is very close to your credit limit, your credit utilisation rate is high. Lenders weight this heavily in affordability decisions, and a rate above 30% can affect credit applications even if you always pay on time.

The minimum payment

Credit card providers set minimum payments as a formula. A typical calculation is: the greater of (a) 1–2% of your total balance, or (b) a fixed floor — usually £25. Some providers use a slightly different structure, such as interest plus 1% of the balance, but all are required to display the formula in your terms.

The important thing to understand is this: the minimum payment is designed to keep you in good standing with the lender, not to help you get debt-free. A £3,000 balance at 24.9% APR, with a minimum payment of 1% plus interest, would take over 27 years to clear if you only ever paid the minimum — and cost nearly £4,900 in interest.

The minimum payment warning

Since 2011, UK credit card providers have been legally required to include a minimum payment warning on every paper and digital statement. It shows:

  • How long it will take to repay your balance if you only make the minimum payment each month
  • How much you would pay in total (balance plus all interest)
  • What you would need to pay each month to clear the balance in 36 months instead, and how much that would save

These figures are calculated at your current interest rate and assume you make no further purchases. They are the best snapshot of the real cost of your debt that the statement provides — and they are often buried at the bottom of the page.

Transactions section

This lists every purchase, payment, and charge during the statement period. Each line shows the date, the merchant name, and the amount. Look out for:

  • Refunds — shown as negative amounts, usually a few days after the original transaction
  • Cash advance fees — charged as a percentage (typically 2–3%) at the moment you use the card at an ATM
  • Balance transfer fees — if you moved debt from another card, this will appear as a transaction
  • Default fees or late payment charges — capped at £12 since 2006 under FCA rules
  • Annual or monthly card fees — shown as a regular charge, not part of your interest

Interest charges

Interest is shown as a separate line (or lines, if you have multiple rate tiers). Most credit cards apply different rates to different types of transaction:

  • Purchase rate — the standard rate for everyday spending, typically 20–30% APR
  • Cash advance rate — usually higher, often 27–30% APR, and begins accruing from the day of the transaction with no interest-free period
  • Balance transfer rate — either a promotional 0% rate (for a fixed period) or the standard purchase rate

Each rate is calculated as a daily rate (APR divided by 365) applied to the relevant portion of your balance.

The interest-free period and when it disappears

Most credit cards advertise an interest-free period of 50–56 days. This applies to purchases — but only if you pay your full statement balance by the due date. If you carry any unpaid balance from the previous month, the interest-free period is suspended. Interest begins accruing on new purchases from the day you make them, even if you pay the new balance in full.

This catches people who pay the minimum one month, then pay the full new balance the next month — and are surprised to find interest charged on purchases they thought were in the grace period.

Payment due date

Your statement will show the date by which your payment must be received — not the date by which you must send it. If your due date is the 15th and your bank takes two days to transfer funds, you need to pay by the 13th. Paying by direct debit avoids this entirely and is the simplest way to avoid late fees.

How Clarify can help

Not sure what a charge on your statement means? Upload your credit card statement to Clarify and get a plain-English explanation of every line — including which charges you can dispute, what the interest figures actually mean, and whether a persistent debt notice requires action.

Explain my statement at getclarify.co.uk

Understanding persistent debt notices

If you have been carrying a balance for a while, you may have received a letter or seen a notice on your statement about "persistent debt". This is a regulatory requirement introduced by the FCA in 2018, not a collections action.

Persistent debt is defined as a period of 18 months during which you have paid more in interest and charges than you have paid off your actual balance. It happens when you consistently pay close to the minimum — the interest accrues faster than the principal reduces.

  • 18-month notice: Your provider must contact you to explain that you are in persistent debt and suggest you pay more each month.
  • 36-month notice: Your provider must offer you a repayment plan that will clear your balance within three to four years. From January 2026, they are also required to proactively propose specific amounts.
  • If you cannot afford the proposed plan: You can ask to be referred to a free debt advice service. Your provider is required to suspend collection activity while you engage with one.

A persistent debt notice does not mean your account is in default. It does not affect your credit file on its own. It is your provider saying: you are stuck in a loop — here is the door. You do not have to accept their repayment plan, but it is worth reading the figures they provide.

How to use your statement to pay less interest

You do not have to pay your full balance to start reducing interest significantly. A few practical options:

  • Pay more than the minimum, even by a small amount. An extra £20 a month can cut years off your repayment timeline. The minimum payment warning on your statement often includes a suggested amount.
  • Pay on time, every time. A missed payment triggers a £12 late fee and can suspend any promotional rates.
  • Direct debit to the minimum, then pay more manually. This protects you from late fees while leaving you in control of how much you overpay.
  • Check whether a balance transfer makes sense. Moving debt to a 0% card can save hundreds — but watch the transfer fee (usually 2–3%) and the promotional end date.
  • Ring-fence cash advances. If you ever use your card at an ATM, pay that amount back as quickly as possible. It attracts the highest rate and has no grace period.

What to do if you think a charge is wrong

If you see a charge you do not recognise on your statement:

  1. Check the merchant name carefully. Many retailers process payments under a different trading name. A quick search of the name and amount usually resolves it.
  2. Check the date. A delayed charge from a recent trip or subscription renewal can look unfamiliar weeks later.
  3. Raise a dispute with your card provider. Under Section 75 of the Consumer Credit Act, your card provider is jointly liable for purchases between £100 and £30,000 — meaning you can claim from them if the merchant will not refund you.
  4. For disputed charges under £100, use the chargeback scheme — this is a Visa/Mastercard rule, not a legal right, but providers almost always honour it for clearly fraudulent transactions.

More help from Clarify

Clarify can read your credit card statement and explain every line in plain English — including what each interest rate applies to, what your persistent debt notice means, and which charges are worth challenging.

Upload my statement at getclarify.co.uk

Frequently asked questions

Why is my credit card balance going up even though I am making payments?

If you are only paying the minimum each month and your interest rate is high, interest can accrue faster than your minimum payment reduces the balance. This is especially likely if you have also made new purchases during the month. Check the minimum payment warning on your statement: it will show you exactly what is happening and by how much. Paying even a modest amount above the minimum will reverse this.

What does APR actually mean, and how does it affect my statement?

APR stands for Annual Percentage Rate. It is the yearly cost of borrowing expressed as a percentage, including the interest rate and any mandatory fees. Your daily interest charge is your APR divided by 365, applied to your outstanding balance. A 24.9% APR on a £1,000 balance works out to approximately 68p per day in interest — roughly £249 over a year if the balance stays at £1,000.

What is the difference between my statement balance and my current balance?

Your statement balance is the amount you owed on the closing date of your billing cycle. Your current balance includes any transactions since then. You only need to pay your statement balance by the due date to avoid interest on purchases — but your current balance shows you the full picture of what you owe today.

Why am I being charged interest even though I paid my bill in full last month?

If you carried a balance the month before, your interest-free period on purchases was suspended. Even if you paid the full statement balance this month, interest was charged on purchases made during the previous cycle because the grace period had been lost. You will need two consecutive months of full-balance payments to restore the interest-free period completely.

What is a persistent debt letter and do I have to respond?

A persistent debt letter is a regulatory requirement your card provider must send if you have paid more in interest and charges than off your actual balance over 18 months. At the 36-month stage, they must offer a specific repayment plan. You do not have to accept their plan, but you should read it — the figures will show you the exact cost of continuing as you are. If you genuinely cannot afford more, contact a free debt advice service such as StepChange or the National Debtline.

Can I dispute an interest charge on my credit card?

You can dispute a charge if you believe it has been applied incorrectly — for example, if you were charged interest during what should have been a 0% promotional period, or if the rate applied was not the one stated in your agreement. Contact your provider in writing, quoting the specific charge and the rate you believed applied. If they do not resolve it, you can escalate to the Financial Ombudsman Service for free.

What is a cash advance, and why does it cost more?

A cash advance is any transaction where your credit card is used to get cash — including ATM withdrawals, purchasing foreign currency, buying cryptocurrency, and some money transfers. Cash advances attract a higher interest rate (typically 27–30% APR), a transaction fee (usually 2–3% of the amount), and no interest-free period. Interest starts from the moment the transaction posts. Using your credit card for cash should be a last resort.

What is Section 75 protection and does it apply to my statement charges?

Section 75 of the Consumer Credit Act 1974 makes your credit card provider jointly liable with the seller for purchases between £100 and £30,000 if the goods or services are not delivered, are faulty, or if the seller becomes insolvent. It applies to the full purchase price even if you only paid part of it on the credit card. You claim directly from your card provider — you do not need to sue the merchant first. It does not cover ATM cash advances, balance transfers, or utility bill payments.

This article provides general information only and does not constitute financial or legal advice. Rules, rates, and regulatory thresholds change over time. For advice on your specific situation, speak to a regulated financial adviser or contact MoneyHelper (moneyhelper.org.uk) or Citizens Advice, both of which are free.

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