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How do dual credit cards work?

What is a Dual Credit Card?

What is a dual credit card? A dual credit card combines the features of two different credit cards: a balance transfer credit card, and a 0% interest purchase credit card. Find out exactly how dual credit cards work in our latest guide.

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Financial Content Writer

Latest edit: 24th February 2026

What is a dual credit card?
How do dual credit cards work?
Could a dual credit card be a suitable option for you?
Does thimbl offer a dual credit card?
Find out more about dual credit cards in this thimbl guide.


What is a dual credit card?

A dual credit card, sometimes referred to as a ‘combo’ credit card, usually offers 0% interest on both balance transfers and new purchases for a promotional period; for example, six months from the date the account is opened. Please note that the length of the interest-free period varies between different products and lenders.


How does a dual credit card work?

Although every provider will have their own guidelines, typically, you could expect a dual credit card to work a little like this:

  1. Once approved, you can transfer one or more of your current credit card balance(s) to the dual credit card. Please note that you could be charged an initial transfer fee. You will not be charged interest on your transferred balance, while also enjoying 0% interest on purchases, during the promotional period.
  2. At the end of the 0% interest promotional period, any remaining balance left from either balance transfers or new purchases will be charged interest at the credit card’s standard rate.

When a dual credit card could be an option to consider

Maybe you’re hoping to save money on the interest you’re currently paying on one or more credit cards, and you’re also planning to spread the cost of a large purchase. In this situation, a dual credit card could be of interest.

Applying for a dual credit card rather than two separate credit cards could reduce the number of hard searches on your credit file, which in turn could protect your credit score.


Things to think about before searching for a dual credit card

  • There are things you should think about before searching for any credit product. Firstly, it’s important to fully understand the product you’re applying for and how it could impact your financial situation.
  • A dual credit card works in the same way as any other credit card in that you’ll need to make at least the minimum repayment due on your balance on time each month. A late or missed repayment could result in additional fees and a decline in your credit score.
  • You must stay within your credit limit; if you attempt to spend outside of your credit limit, your transaction could be declined, and your credit score could suffer.
  • It’s vital to be financially disciplined; a credit card offering 0% interest on new purchases should not be an incentive to spend money when you don’t need to or can’t afford to repay.
  • When the 0% interest promotional period ends, any remaining balance and new purchases will be subject to interest at your standard rate.

Do thimbl offer a dual credit card?

No, thimbl do not currently offer a dual credit card, although you may be interested to learn about the types of credit cards we do offer.


The thimbl Credit Builder Credit Card The thimbl Balance Transfer Credit Card
Could be suitable for:
  • Those hoping to build their credit score.
Could be suitable for:
  • Those currently paying off one or more existing credit cards.
    You can find out more about the thimbl Balance Transfer Credit Card here.
Key features:
  • Use the thimbl Credit Builder Credit Card to make an affordable and essential purchase, and then make at least the minimum repayment amount each month. Your repayment activity will be reported to the Credit Reference Agencies (CRAs), and in time, you could notice an improvement in your credit score.
Key features:
  • 0% interest on balance transfers for six months from the date your account is opened. 
Things to be aware of:
  • The credit builder credit card could be most effective when used alongside other credit-building techniques, such as paying your bills on time every month and checking your credit report for errors.
Things to be aware of:
  • Once the six-month 0% interest period comes to an end, any balance remaining will be charged interest at your standard rate.
  • The 0% interest offer does not apply to any new purchases made using the credit card.
  • There’s an initial transfer fee of either £3 or 3% of the amount, whichever is higher.
  • You can transfer up to 97% of your available credit limit.
Starting credit limit:
  • Between £200 and £2,000
Starting credit limit:
  • Between £500 and £2,000
Representative Annual Percentage Rate (APR):
  • 48.9% APR Representative (variable)
Representative Annual Percentage Rate (APR):
  • 39.9% APR Representative (variable)

The thimbl Balance Transfer Credit Card Representative Example: Assumed borrowing of £1,200 for 1 year, at a purchase rate of 39.9% (variable), Representative 39.9% APR (variable). 3% balance transfer fee (or £3, whichever is higher).



Find out if you’ll be accepted before you apply for your thimbl. Credit Card
  • For all credit levels, from poor to excellent
  • Checking won’t affect your credit rating
  • 48.9% APR Representative (variable)
Check my eligibility
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Check your eligibility for a thimbl credit card with no impact to your credit score*

You can check your eligibility for either the thimbl Credit Builder Credit Card or the thimbl Balance Transfer Credit Card if you:

  • Are between the ages of 18 and 70;
  • Are a UK resident with at least 1 year's UK address history;
  • Have a monthly net income of at least £800;
  • Have an active credit account that has been open for a minimum of 12 months; and
  • Do not already hold a Zable credit card. 

Zable is a trading name of Lendable Ltd.** Lendable Ltd is unable to consider applications from anyone who has declared bankruptcy or is in an Individual Voluntary Arrangement (IVA).

You can check your eligibility for the thimbl Balance Transfer Credit Card here.


What to do if you can’t make your credit card repayments

If you’re finding it difficult to meet your credit card repayments, please get in touch with your provider. It’s best to reach out sooner rather than later to give your provider the opportunity to talk you through any options that could help relieve some of the financial pressure.


Get free, confidential financial advice

If you’re worried about your financial situation or level of debt, you can get impartial advice through charities and organisations, including StepChange, MoneyHelper, Citizens Advice, and National Debtline.


*Zable is a trading style of Lendable Ltd. If you choose to make a full application, a creditworthiness assessment will be carried out by Zable. This will consist of a hard search and a further check powered by Open Banking. A hard search will remain on your credit file for up to 12 months, and multiple hard searches within a short period of time could have a negative impact on your credit score. Any credit obtained upon successful application will be provided by Lendable Ltd.

**thimbl is a credit broker. The thimbl credit card is powered by Zable, a trading name of Lendable Ltd.


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Page last reviewed: 24th February 2026

Page reviewed by: Harry Lawrance

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Frequently asked
questions

If you've got a question, you may just find the answer you're looking for here. If not, please visit our contact us page and get in touch.

What will my credit limit be?

If you are accepted for a thimbl credit card, you could be offered a starting credit limit of up to £2,000. If you use your card responsibly and show that you can manage your repayments on time each month, you may be eligible for a credit limit increase over time, up to a maximum of £4,000.

You will always be made aware of any credit limit changes to any credit cards you have beforehand, and you do not have to accept a credit limit increase if you don't feel it's right for you.

What happens if I fail to make my repayments?

Falling behind on or failing to make your monthly repayments could result in additional charges, such as late payment fees.

Missed payments will be reported to the credit bureaus, and your account will appear as in arrears. You will be charged a late fee, which is usually around £12. Your credit rating is also likely to decline as a result.

You should try to make your missed payments as soon as possible.

If you're struggling to keep on top of your repayments, you can find free, impartial advice from MoneyHelper, StepChange, Citizens Advice and National Debtline

If you want to know more about how credit cards work, you can read our blog.

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