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Our Best Pay As You Go SIM Deals

Connect with our best Pay As You Go sim deals. Order now and get your new sim delivered for free.

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A network you can trust

We're here for you whenever you need us.

So you can stay connected to the people that matter.

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Get Priority

It’s good to be back.

From unique prize draws to unforgettable moments, Priority gives you invite-only access to gigs, perks and experiences.

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My O2
My O2

Manage your account 24/7.

Keep an eye on your bills and data usage and add a Bolt On if you need it. Get an upgrade, make a bill payment or top up your credit. You can do all this and more, wherever you are, with My O2. Sign in online or get the free My O2 app.

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What is a free Pay As You Go SIM and how do I order one? Collapsed link

O2 Pay As You Go SIM cards are free of charge. Delivery to your door is also free.

You can order a free O2 sim for a Big Bundle or Rolling plan. Both are contract-free. Just choose the one best for you, enter your details, and we'll send you your free sim card. If you order your free sim Sunday–Thursday before 2pm, you'll receive it the next working day.

What types of PAYG SIM only contracts do O2 offer? Collapsed link

There are two types of O2 contract-free SIM only offers: Big Bundles and Rolling Plans.

Big Bundle
Our Big Bundle sim only deals mean you can choose your monthly data allowance. You top up your sim card, and we exchange your credit for your monthly calls, texts and minutes allowance.

Rolling Plan
Rolling plans are contract-free SIM only packages – that don’t require top ups. They include an allowance for minutes, texts, and data. Extra options include minutes for international calls from the UK to 42 countries. 
With a Rolling plan, you set up paying for your monthly allowance using your debit or credit card. Your monthly payment will be taken automatically, and your allowance will refresh. You can carry over up to 100% unused allowance, so you never lose out. You're in control and are free to change or stop your Rolling plan at any time. Read more about our Rolling Plans.

Do I need a contract or credit check for a Rolling Plan? Collapsed link

No. Rolling plans are contract-free, and there's no credit check. You can choose to stop your Rolling plan at any time. If you do, you'll keep any allowances you've paid for. There's no minimum period to commit to.

How do Rolling Plan payments work? Collapsed link

When you set up your Rolling plan, we'll safely store your debit or credit card details. You’ll need to use a payment card registered to a UK postal address. We'll notify you four days before your next Rolling plan payment is due every month.

Can I keep my phone number when swapping SIM cards? Collapsed link

Yes. If you're moving from another network, we'll need your PAC before you can transfer. Once you've ordered and received your temporary O2 number, fill in a short form to keep your number. Find out more about keeping your number.

If you're moving from O2 Pay Monthly to O2 Pay As You Go, get in touch with our Pay Monthly customer service team, and we'll do the rest. If you're on O2 Refresh, you can only move to Pay As You Go once your Device Plan is paid. You may need to pay a termination charge if you're not on O2 Refresh but still in your minimum contract term.

Can I change tariff? Collapsed link

Yes. To switch to a new tariff, sign in to My O2 or call 2202 free from your O2 phone. You can do this once a month if you want to.

Can I get O2 Priority with Pay As You Go SIM cards? Collapsed link

Get access to all the best bits of O2, like Priority, but with the added benefit of full flexibility. There are no contracts, no credit checks, and the sim is free to order. Plus, you can claim £10 free O2 credit on all Big Bundles and a further £5 when you sign up to My O2.

How can I top up my free SIM card? Collapsed link

You can top up online, or you can:

call 4444 from your mobile

use an E-Top Up card or buy a voucher anywhere you see the green top-up logo

use the My O2 app

Do Pay As You Go SIMs expire? Collapsed link

As long as you carry out a chargeable activity on your Pay As You Go sim at least once every six months, it won't expire, and your phone number will remain active.

How does data rollover work? Collapsed link

Data rollover is available on £10 and higher Big Bundles and Rolling plans. You can roll over up to 100% of your monthly data allowance. For example, if your monthly allowance is 7GB, you can roll over a maximum of 7GB into the next month.

You need to keep the same Bundle or plan and renew on the same date each month, or your data will expire.

What are Pay As You Go Bolt Ons? Collapsed link

Bolt Ons give you extra flexibility with your Tariff and help you get the most out of your Pay As You Go phone. We have a variety of Pay As You Go data deals to suit your wallet and your lifestyle. See our latest range of Pay As You Go data Bolt Ons.

What are the O2 EU roaming charges for Pay As You Go? Collapsed link

We cover data roaming in Europe as part of our Pay As You Go SIM Tariffs. So your data (subject to a roaming limit), minutes and text allowances will work in our Europe Zone, just like they do at home.

I ordered a SIM card but it hasn't arrived yet, what should I do? Collapsed link

If you order your free sim card by 12pm, you'll get it the next working day (subject to location and Royal Mail delays). But please allow three working days. If it still hasn't arrived, you can chat to one of our agents.