If I don't pay my bill in full on due date, is it late?

Yes.  You can make late payment arrangements on the My Att app on your phone.

 

If your account is not paid on time:

you will pay a late fee of $5

you will forfeit any port credits for not keeping account in good standing.

If you don't arrange late payment, your service may be suspended and you have to pay all amounts due to reconnect, plus A $40 reconnect fee on the next bill.

Yes, it is punative.  You are encouraged to pay on time.

 

 

Yes it late. Pay your bill on time.

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@Ary744415680 wrote:

The $5 late charge is incurred whether or not you check the box for split payment. 

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If the full amount due isn’t paid on time, yes, you get charged a late fee.