How to Use Your Credit Card to Your Advantage: Rewards, Protection and Interest-Free Spending
Published 15th of November 2010·Updated 19 April 2026
Reviewed by: Reviewed for accuracy April 2026
A credit card costs you nothing if you clear the full balance every month. Used strategically, it can earn you cashback, reward points, air miles and consumer protection that debit cards simply do not offer. The key is choosing the right type of card for how you actually spend money, and never carrying a balance that attracts interest.
Short Summary
Every credit card purchase between £100 and £30,000 is protected under Section 75 of the Consumer Credit Act 1974. If a retailer goes bust or fails to deliver, you can claim the money back from your card provider. Debit cards do not carry this protection.
Cashback cards typically pay 0.5% to 1% on general spending, with higher rates in specific categories such as supermarkets or petrol. On £1,000 of monthly spending, a 1% cashback card returns £120 per year in cash.
Travel credit cards eliminate foreign transaction fees, which most standard credit cards charge at around 2.75% to 3% per transaction. Using a specialist travel card abroad can save a meaningful amount on a two-week holiday.
All benefits are wiped out if you carry a balance. Interest charges at 20% to 30% APR outweigh any rewards earned. These strategies only work if you pay in full every month.
Which type of credit card matches how you spend?
Different credit cards reward different spending patterns. Choosing the wrong card means leaving money on the table.
| Card type | Best for | Typical benefit |
|---|---|---|
| Cashback card | Everyday spending, supermarkets, bills | 0.5% to 5% cash returned on spending |
| Rewards/points card | Regular spending with a specific retailer | Points redeemable for vouchers, flights or goods |
| Airline card | Frequent flyers loyal to one carrier | Air miles worth 1.5p to 3p per mile |
| Travel card | Holidaymakers and frequent travellers | No foreign transaction fees; sometimes travel insurance |
| 0% purchase card | Large planned purchases | 0% interest for 12 to 21 months |
| Credit builder card | Building or repairing credit history | Lower limit, higher rate; helps establish payment record |
| Business credit card | Company owners managing expenses | Expense tracking, supplier discounts, separate credit file |
How do cashback credit cards work?
Cashback cards pay you a percentage of everything you spend on the card. The cashback is either credited to your statement monthly or paid annually as a lump sum.
American Express cards typically offer the highest cashback rates, with some cards paying 1% to 5% depending on the category of spending. Barclays, Santander and Tandem also offer cashback credit cards with competitive rates. Most have no annual fee on the standard version, though premium versions with higher cashback rates often carry a fee of £25 to £200 per year.
To work out whether a paid card is worth it, calculate your typical monthly spending and multiply by the cashback rate. If the annual cashback earned exceeds the annual fee, the card pays for itself.
How do airline and travel reward cards work?
Airline credit cards are affiliated with a specific carrier. The British Airways American Express card earns Avios points; the Virgin Atlantic Reward card earns Virgin Points. You typically earn one to two points per pound spent, with bonus multipliers for spending with the partner airline.
The value of a point or mile varies. Avios redeemed on British Airways short-haul flights are typically worth around 1p each when used for seat-only bookings, and more when used for business class redemptions. Frequent flyers who are loyal to one airline can extract significantly more value from an airline card than from a general cashback card.
General travel cards, such as those offered by Chase or Halifax, are not tied to a specific airline. Points can be used across multiple airlines and hotels, giving more flexibility. However, the per-point value is usually lower than the best airline redemptions.
How does Section 75 protection work in practice?
Section 75 of the Consumer Credit Act 1974 makes your credit card provider jointly liable with the retailer for any breach of contract or misrepresentation on purchases between £100 and £30,000. This means if a company goes into administration, delivers faulty goods or fails to fulfil an order, you can claim the full amount back from your card issuer.
The protection applies even if you only put part of the purchase on the card. Paying a £50 deposit on a £500 holiday using a credit card brings the entire purchase within Section 75 protection. This is a legally enforceable right, not a goodwill gesture from the card provider.
How do 0% purchase cards work?
A 0% purchase credit card charges no interest on new purchases for a set promotional period, typically 12 to 21 months. This is useful for spreading the cost of a large planned purchase: a new appliance, car repair or home improvement, for example.
You must still make at least the minimum payment each month during the 0% period. Missing a payment can end the 0% deal immediately and trigger the card's standard rate. Set up a direct debit for the minimum payment and make manual overpayments to clear the balance before the promotional period ends.
How do business credit cards work?
Business credit cards are separate from your personal credit file and operate on a distinct business credit record. They allow company directors and sole traders to keep business spending separate from personal accounts, which simplifies accounting and VAT record-keeping.
Many business cards offer additional benefits including supplier cashback, expense management tools and higher credit limits than personal cards. American Express Business cards, Barclays Business credit cards and Capital on Tap are among the more widely used options for UK small businesses.
Frequently Asked Questions
Do credit card rewards affect my taxes?
In most cases, no. Cashback and rewards earned on personal spending are not generally considered taxable income by HMRC. However, if you use a business credit card and claim cashback or rewards as income, the tax treatment may differ. If you are unsure, consult your accountant or check HMRC's guidance directly.
Is it worth paying an annual fee for a rewards credit card?
It depends entirely on how much you spend. Calculate your expected annual cashback or reward value and compare it to the annual fee. If the rewards outweigh the fee, the card is worth it. Many providers offer a free trial period or waive the first year's fee, which makes it easy to test.
Can I use a cashback credit card to pay my bills and utilities?
Yes, if your provider accepts credit card payments. Most energy suppliers, broadband providers and council tax departments accept credit cards, though some charge a processing fee. Check whether any processing fee reduces or eliminates the cashback benefit before using a card for bill payments.
Will using a credit card for rewards spending affect my credit score?
Using a credit card regularly and paying the full balance each month generally improves your credit score over time. It demonstrates responsible credit management. The only risk is if high spending pushes your credit utilisation above 30 per cent of your available limit, which can slightly suppress your score.
What happens to my rewards points if I close my credit card account?
This varies by provider. Some programmes, including Avios linked to your British Airways Executive Club account, are held separately from the card and are not lost when you close the card. Others are stored in the card account itself and may be forfeited on closure. Check the terms of your specific rewards programme before closing any card.
Is it safe to use a credit card abroad?
Yes, and it is often the safest way to spend money overseas. Section 75 protection applies to purchases made abroad. A specialist travel credit card from providers such as Chase, Halifax Clarity or Barclays will not charge foreign transaction fees. Avoid using a standard credit card abroad without checking the foreign usage fee, as it is typically 2.75% to 3% per transaction.