Data Rollover is a free feature on all iD Mobile plans. It rolls over unused data to the next month, giving you a second chance to use it:
How does Data Rollover work?

You don't have to lift a finger to set up Data Rollover. It all happens automatically. Here’s how:
- Leftover data?
If you haven’t used all your data allowance, don’t worry – it rolls over!
- It rolls over.
Any unused data is added to your allowance for next month, so you don’t lose out.
- Enjoy!
Your leftover data will be used first, and you’ve got the whole month to make the most of it.
Please note: Your rolled over data will last a month. If you don't use up all your Rollover data, it expires at the end of each month.
What's so great about Data Rollover?
As well as giving you a second chance to use your data allowance, Data Rollover can help you save data for busier months and helps you avoid running out! Plus, it makes you less likely to run out of data and pay extra charges as you can choose a plan with just the right amount of data.
How will I know how much I have rolled over?
You can check your allowances and remaining rolled over data in the iD Mobile app or My Account online. Find out how in the article below: