Credit cards aren't one-size-fits-all, and picking the wrong category can mean leaving serious value on the table. A new guide from The Points Guy breaks down the eight main types of cards and who each one actually suits — useful reading for anyone planning to fund future trips through everyday spending.

The core categories: cash-back cards, flexible travel rewards cards, cobranded airline and hotel cards, premium travel cards, business cards, student cards, secured cards and store cards. They overlap more than you'd think — a cobranded hotel card is also a travel rewards card, and plenty of business or student cards earn cash back — which is exactly why it helps to know what you're signing up for.

Cash-back cards are the simplest entry point. You earn a percentage back on purchases, sometimes at a flat rate on everything, sometimes with boosted rates in bonus categories like groceries, gas or drugstores, and occasionally with rotating quarterly categories. Rewards can usually be taken as a statement credit, bank deposit or gift card. Most charge no annual fee, though the higher-earning ones often do.

Travel rewards cards trade that simplicity for potentially bigger value. Points can often be transferred to airline and hotel loyalty programmes, which is where outsized redemptions — think long-haul business class — tend to hide. The trade-off is more complexity: categories, transfer partners and redemption strategy all require a bit of homework. Cobranded airline and hotel cards go further, tying you to one brand in exchange for perks like free checked bags, elite-status shortcuts and anniversary free nights.

Premium cards bundle travel credits, lounge access and purchase protections, but at a price — the American Express Gold card featured in the guide carries a $325 annual fee, offset by a stack of dining, Uber, Dunkin' and restaurant credits. Fine if you'd use them; expensive wallpaper if you wouldn't.

At the other end of the scale, secured cards (which require an upfront deposit) and student cards exist for people building or rebuilding credit — a sensible first step before chasing rewards. Store cards are locked to specific retailers and rarely worth it for travel purposes, while business cards help sole traders and entrepreneurs keep spending separate, often with generous rewards of their own.

The practical takeaway: match the card to how you actually spend and travel. Frequent flyers on one airline may love a cobranded card; occasional travellers probably want flat-rate cash back; points enthusiasts should look at flexible cards with transfer partners. Check eligibility criteria, welcome offers and fees before applying — and remember the best rewards card is one you pay off in full every month.