PAYG Guide 2026 — All UK Networks

What is Pay As You Go (PAYG)?

PAYG means paying only for what you use — no monthly bill, no credit check, no contract. Top up credit and either pay standard per-call/per-MB rates (expensive without a bundle) or purchase 30-day bundle add-ons that dramatically reduce costs.

Three PAYG — standout feature

Three includes Go Roam in 71 countries free on PAYG — no other major UK network matches this. Three also uniquely offers PAYG eSIM — digital activation, no physical SIM, no credit check. Best PAYG offering in UK mobile for data users and travellers.

O2 PAYG

Big Bundle 30-day add-ons. EU roaming usable on PAYG. Top Up Rewards scheme. Social tariff Essential Plan available. Top-up via My O2 app or retail locations.

Tesco Mobile PAYG

Rocket Packs (30-day bundles). 1 Clubcard point per £1 top-up. No credit check. Identical O2 coverage.

Sky Mobile PAYG

Sky Mobile does not operate a traditional PAYG product. Their 30-day Mix SIM serves as the flexible no-commitment equivalent. For genuine PAYG, Three, O2 or Tesco Mobile are better options.

Who benefits from PAYG

Very light users who do not need daily data
Customers who cannot or prefer not to have a credit check
Children's first phones with controlled spending
Travel or backup SIMs
Testing a network before committing to a contract

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