Shockproof bills!

Cap your monthly spend to an amount that suits you.

Happy Man

Bill Capping is a money-saving feature on all iD Mobile plans. It lets you limit your monthly spend to an amount that works for you.

How Bill Capping works.

Green circle in the background with three bottles

Set your cap.

Set your Bill Cap in the iD Mobile app to limit additional charges.

Green circle in the background with a padlock

No nasty surprises.

We won't charge you more than the amount you set as your Bill Cap.

Green circle in the background with a hand holding a mobile phone

Change anytime!

Adjust your Bill Cap at anytime in the iD Mobile app.

Note: Optional extras, including add-ons, are not included in your Bill Cap amount.

Big Exclamation mark

What happens if I reach my Bill Cap?

If you run out of an allowance and keep using it, you'll be charged out-of-plan rates until you reach your pre-set Bill Cap limit.

When you reach your Bill Cap - or if it is set to £0 - you won't be able to make calls, send texts or use your data where there is an additional charge.

In this event, you could increase your Bill Cap (up to your credit limit) or buy add-ons, such as extra data and minutes.


Your credit limit is the maximum out-of-plan charge you can incur on an iD connection (not including your monthly line rental, add-ons, and any other admin charges). It is an amount, in pounds, based on the results of the credit checks we processed when you bought your iD Mobile plan.

Your bill cap is an adjustable 'out-of-plan spend' limit placed on your account. You can adjust it between £0 and your credit limit with the iD Mobile app or My Account online.

Yes, you can still use your phone abroad with a £0 bill cap - as long as you have inclusive allowances remaining and you're in one of our 50 Inclusive Roaming destinations. If you're somewhere else you won't be able to use your phone with a £0 bill cap, as your activity will be classed as international roaming, and any usage will be chargeable.

Simply log in to the iD Mobile app or My Account online and adjust your bill cap on the settings page.

Got a question?

Our Community is here to help.

View our Pay Monthly deals

Pay monthly plans.

See our range of phones from the world's leading manufacturers.

View our SIM only deals | Which? Award Badge - Great Value

SIM only plans.

See our range of great value 1, 12 or 24 month SIM only plans.