If you keep tapping in and hoping for the best, you are probably paying more than you need to. This guide explains how London’s fares actually work, so you can move around the city cheaply and stop second-guessing every journey. By the end you will know when capping saves you money, when it does not, and the small habits that quietly protect your balance.

How London fares actually work

London uses pay-as-you-go on contactless bank cards, Apple Pay, Google Pay and Oyster cards. You tap on entry, and on the Tube, DLR and most rail you also tap on exit. Buses and trams are a flat single fare with no exit tap. The system then adds up your day and stops charging once you hit a daily cap.

Contactless versus Oyster

Both work, but there is one real difference worth knowing. Contactless (and mobile wallets) gives you automatic Monday-to-Sunday weekly capping. Pay-as-you-go Oyster only gives daily capping, not weekly. So if you travel most days in a week, a contactless card can be cheaper than Oyster for the same journeys. If you are a visitor tapping a foreign card, check your bank’s overseas transaction fees first, as those can wipe out the saving.

Zones, peak and off-peak

Fares depend on the zones you travel through, with Zone 1 the centre. Tube and rail fares are higher during peak times, roughly the morning and late-afternoon commuter windows on weekdays. Buses cost the same all day. If your schedule is flexible, shifting a journey out of peak can lower both the single fare and the cap that applies that day.

The Hopper fare and other quiet savings

The Hopper fare lets you make unlimited bus and tram journeys within one hour of your first tap, for one fare. If your trip needs two buses, you are not charged twice as long as you tap the second within the hour. This alone changes how you plan short cross-town trips.

A National Railcard can also be linked to a contactless or Oyster card to get roughly a third off off-peak pay-as-you-go fares and caps. If you qualify for a 16-25, 26-30, Senior or Two Together railcard, this is one of the biggest legitimate discounts available.

A real scenario

Say you are new to the city and spend a week getting to a new job in Zone 1, plus errands. You tap a contactless card every day. Midweek you notice your daily charges have stopped rising once you hit the cap, and by Sunday the weekly cap kicks in, so your last couple of days effectively cost nothing extra. Had you used pay-as-you-go Oyster, you would have paid a fresh daily cap every single day, with no weekly ceiling. Same journeys, more money.

Common mistakes and how to fix them

Not tapping out on the Tube. Forget to touch out and the system charges a maximum fare because it cannot tell where you left. Fix: always tap out, and if you are wrongly charged, request a refund through your TfL contactless or Oyster account.

Mixing cards. Pay with your phone one day and the plastic card another, and the system treats them as two travellers, splitting your journeys so you may never reach a cap. Fix: pick one card or device and use it consistently all week.

Tapping a bus card reader on exit. Buses only need one tap. Tapping a second reader you find later can start a new fare. Fix: tap once on boarding, then put it away.

Assuming Oyster is always cheapest. For regular weekly travel, contactless usually wins on capping. Fix: match the card to your travel pattern.

Your quick checklist

• Use one contactless card or one phone wallet for the whole week.
• Always tap out on Tube, DLR and rail; tap once on buses.
• Add an eligible railcard to your card for off-peak discounts.
• Use the Hopper fare for connecting bus trips within an hour.
• Travel off-peak when you can to cut fares and caps.
• Check any refunds owed in your online travel account.

Conclusion and next step

Getting around London cheaply is mostly about consistency and knowing where the ceilings are. Your next step is simple: choose one payment method today, link a railcard if you qualify, and let capping do the work. Track one week of journeys in your online account and you will quickly see the pattern.

FAQ

Is contactless or Oyster better for me?

If you travel most days, contactless usually wins because of weekly capping. For occasional trips, the difference is small, so use whichever is more convenient.

Do I need to tap out on the bus?

No. Buses and trams are a single flat fare with one tap on boarding only. Tapping again can cost you.

Can I use my phone instead of a card?

Yes. Apple Pay and Google Pay work like a contactless card, including capping. Just do not switch between the phone and the physical card mid-week.

What happens if I am overcharged?

Create a free TfL account linked to your card, review your journey history, and request a refund for incomplete or incorrect fares.

References

Transport for London (tfl.gov.uk) is the official, authoritative source for current fares, zones, capping rules and railcard discounts. Always confirm exact prices there, as fares change.