Data Charge

Data Charge is a service for purchasing top-up data quantities in real time.

Monthly fee	Application
Not required * Only the fee for the charged amount is incurred	Required

Even if you use the entire monthly data amount of your contracted data flat rate service/rate plan in the middle of a month, you can use data communication without speed restrictions by charging (purchasing) additional data.
You can also make a reservation to automatically charge your data before your monthly data amount runs out.

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[Monthly data quantity]Data quantity under your contracted data (packet) flat-rate service/plan
[Purchased data quantity] Data quantity purchased using the Data Charge service

The additional data quantity is valid for 62 days from the day of recharge so there is no waste.

If you have both monthly data quantity and purchased data quantity, the monthly data quantity is used first.

Validity period

Data quantities can be added in units of 0.5GB and 1GB using Data Charge

Select the additional data quantity from 0.5GB or 1GB and add quantities according to your needs.

Choose "Immediate" or "Reservation" for the charge timing

Set the charge timing and number of charges to match your usage conditions.

Usage condition	Charge timing	Number of charges
You want to charge immediately regardless of your remaining data amount or expiration date	Immediately	1
You want to charge automatically before your remaining data amount runs out or before the expiration date	Reservation (*)	Choose from 1, 2, 3, 4, 5, or 12

(*) Depending on your contract status, you can choose (1) or (2) for the charge timing.

• (1)When the remaining monthly data amount and purchased data amount reaches 1%, or when the expiration date of the purchased data amount has been reached
• (2)When the expiration date of the purchased data amount has been reached

This service can be used when subscribed to one of the following data (packet) flat-rate services or rate plans.

Eligible models	Eligible Flat-rate Data services/rate plans
4G LTE Smartphone 4G LTE feature phone	au Adjust Plan au Flat Plan Flat-rate Data 1/2/3/5/20/30 Flat-rate Data 1/2/3/5 (Mobile phone) LTE Flat Junior Smartphone Plan LTE Flat cp (f・2GB) * Plans whose applications are no longer accepted Senior Plan Flat-rate Data 1cp/3cp/5cp U18 Flat-rate Data 20 Flat-rate Data 1cp (Dedicated plan for the au Smartphone Debut Program) Flat-rate Data 8/10/13 Flat-rate Data 8/10/13(Mobile phone) Flat-rate Data cp (0.8GB) LTE Flat cp (1GB)
4G LTE Tablet	Tablet Plan ds (3-year contract) / (3-year contract/L) Tablet Plan ds (2-year contract) / (2-year contract/L) Tablet Plan cp(2GB・3-year contract) LTE Flat for Tab/Tab (L) LTE Flat for Tab(i) * Plans whose applications are no longer accepted LTE Flat for Tab ds/Tab ds (L) LTE Flat for Tab (i) ds
4G LTE capable PC	LTE Flat for DATA(m) LTE Flat for DATA(m) ds

• * The names of rate plans and data (packet) flat rate services for 4G LTE (au VoLTE) AndroidTM smartphones have "(V)".

When you run out of data quantity, a notification email will be sent to the email address registered to your au ID.

For details

• * If you complete the application procedure to commence the Data Charge service between 8:00 AM and 9:00 PM, you can use the service immediately. If you apply at any other time, you can use the Data Charge service from 8:00 AM the next day. If you complete the procedures for a new contract, model change or additional terminal on the same day, you can use the Data Charge service from 8:00 AM the next day regardless of the time the application procedure is completed.
• * An au ID is required to use the Data Charge service.
  (Click here (in Japanese only) to set your au ID / If you have forgotten your au ID or password, click here (in Japanese only))