Personal | Business
Sign in or Register
O2 Logo White
  • Shop

    Phones

    • Phones
    • Upgrades
    • Apple iPhone
    • iPhone 16
    • Android phones
    • Refurbished phones

    Tablets, laptops and dongles

    • Tablets
    • Apple iPad
    • Android tablets
    • Laptops
    • Dongles and mobile WiFi

    SIMs and Tariffs

    • Pay Monthly SIMs
    • Pay As You Go SIMs
    • Tariffs
    • International
    • Top-up
    • Essential Plan

    Accessories and more

    • Tech and accessories
    • Apple Watch
    • Smartwatches
    • AirPods
    • Great deals
    • Summer Sale
  • Why O2

    O2 for you

    • Flexible tariffs
    • Upgrade with O2 Switch Up
    • Fair Deal for O2 customers
    • Peace of mind with O2 Insure
    • Tech news and inspiration

    Saving you money

    • Data rollover
    • Sell with O2 Recycle
    • Auto-save plans
    • Multisave discounts
    • Virgin Media and O2 benefits

    Perks and rewards

    • Priority Tickets and offers
    • Pick your O2 Extras
    • Collect Airtime Rewards
    • Perks at O2 venues
    • Pay As You Go Rewards

    Stay connected

    • Travel with EU roaming
    • Check your coverage
    • Our cutting-edge network
    • 5G is here
    • Free O2 WiFi hotspots
    • Live bigger with Volt

      Discover extra benefits
    • O2 bubbles

      See all the reasons to choose O2

      Why join O2?
  • Help

    Help and support

    • Account
    • Products and services
    • Device guides
    • Network and international
    • Safety and security

    Most popular

    • Activating your SIM
    • eSIM
    • How to track your order
    • Payment support
    • Understanding your bill

    Useful links

    • Store locator
    • Network status
    • Faulty device
    • Virgin Media O2
    • Fraud help

    Contact us

    • O2 Community
    • My O2 App
    • Contact us
  • My O2
  • Search
  • Basket
Data rollover

Data rollover

Didn’t get through all your data? Let’s keep it rolling

What is data rollover?

Sometimes, you don’t need all your data. Other times, you could use a little more. That’s why we let you take any of your main allowance left over from the last month into the next. And even better, it’s done automatically – no fuss, no limits.

The power’s in your hands

Enjoy your data however you want, whenever you want – whether life’s throwing you more day trips and road trips or cosy times and family nights at home.

No fuss, no limits

There’s no cap on how much data from your main allowance you can roll over – unless you already have unlimited data. Didn’t use any of your allowance this month? It’ll all be added to next month’s total. So, you can do more of what you want, from wherever you want.

Flexibility as standard

Take out a Plus or Ultimate Plan and we’ll throw in data rollover at no extra cost. That’s on top of all your best-loved benefits, like EU roaming, O2 Switch Up and an Extra.

Choose your plan

Data rollover is included when you take out a phone, tablet or SIM on a Plus or Ultimate Plan

Get a Plus Plan

Supercharge your Airtime Plan with perks worth up to £350.

Find out more

Grab an Ultimate Plan

Getting the very best of O2 has never been easier.

Learn more

Browse phones, tablets and Pay Monthly SIMs

Get the latest smartphone

Find a new smartphone on O2 Refresh

Pick a phone

Try a brand new tablet

Get online anywhere with a 5G ready tablet

Choose a tablet

Save with a SIM Only plan

Browse our best Pay Monthly SIM deals

Choose a SIM

FAQs

Sometimes, you don’t need all your data. Other times, you could use a little more. Data rollover lets you take any of your main data allowance left over from the last month into the next. And even better, it’s done automatically – no fuss, no limits.

You can grab it as standard with Plus and Ultimate Plans – on top of all your best-loved benefits, like EU roaming, O2 Switch Up and an Extra.

Every month. We work out your data rollover at the end of each billing month, not calendar month.

There’s no limit, but only data from your main allowance can be rolled over. By that, we mean data you’ve rolled over before can’t be rolled over again.

For example, on a 50GB tariff, the maximum rollover is 50GB – leaving 100GB for the next month, which’ll expire at the end of the month. Unlimited data tariffs are excluded from data rollover.

Yes, it does.

One month. If the rolled-over amount isn’t used, it’ll be lost.

Your main data will be used first, followed by any data you’ve rolled over.

You can see how much data you’ve got left to use in My O2. The total we show you will include any rolled-over data.

Yes – any notification with a ‘percentage remaining’ amount will include your rolled-over data.

If you move from a Classic Plan to a Plus or Ultimate Plan, you’ll nab data rollover. Likewise, if you switch from a Plus or Ultimate Plan to a Classic Plan, you’ll lose it.

And if you change your monthly data allowance but stay on a Plus or Ultimate Plan, you’ll be able to roll the new amount over.

See all FAQs

For new and upgrading customers only. Data rollover is included with Pay Monthly Plus Plans and Ultimate Plans at no extra cost. Unlimited data plans excluded. Double data received as a Volt benefit is excluded. Up to 100% of unused data from your main data allowance can be rolled over into the following monthly billing cycle. Any data rolled over will last for one monthly billing cycle only. Data from your main allowance will be used before any data you’ve rolled over. Any data that cannot be rolled over will expire. Any data that is rolled over can only be used in the UK. You will lose data rollover as an ongoing benefit if you change to a plan that isn't a Plus Plan or Ultimate Plan, but unused rolled over data will carry over and be available until used up or expired. Click here for full terms. 

  • Find a store
  • Check our network
  • Sign in to My O2
  • Track my order
  • Search

Popular in shop

  • iPhone 16 Pro Max
  • iPhone 16 Pro
  • iPhone 16
  • Apple Watch Series 10
  • Apple iPad A16
  • Samsung Galaxy S25 Ultra
  • Samsung Galaxy S25
  • Samsung Galaxy Z Flip6
  • Google Pixel 9 Pro XL
  • Google Pixel 9 Pro
  • SIM Only Deals
  • Virgin Media broadband deals

Help and Support

  • Help home
  • Contact us
  • My O2
  • Collection and delivery

Shop

  • Phones
  • Tablets
  • Pay Monthly SIM
  • Collection and delivery
  • Virgin Media O2 Joint Venture
  • Facebook
  • Youtube
  • X
  • Instagram
  • About O2
  • Better Connections Plan
  • Careers
  • News & PR
  • Sponsorship
  • Virgin Media and O2
  • Accessibility
  • Terms & Conditions
  • Privacy policy
  • Cookie policy
  • Modern Slavery Statement

©2025 Telefonica UK Limited

In relation to consumer credit, Telefónica UK Limited is authorised and regulated by the Financial Conduct Authority (Reference Number 718822)

  • Home
  • Data rollover