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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Canceling AT&T wireless service tied to a phone promotion usually stops future monthly bill credits and leaves the unpaid device-installment balance due. Changing plans is less predictable: if the promotion requires a qualifying plan, moving to an ineligible plan can stop credits. In the specific qualifying-unlimited-plan situation described by AT&T, you may be able to restore them by returning to an eligible plan within 30 days of the notification text. That deadline and remedy do not automatically apply to every promotion.
Your offer terms, installment agreement, line, and AT&T notices control. Check those documents before making a change rather than assuming every “free phone” or trade-in offer follows the same rule.
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How AT&T promotional credits are structured
Most device promotions do not reduce the phone price at checkout in one payment. Instead, AT&T applies a recurring credit to the wireless bill while the device remains on an installment agreement. AT&T says these discounts are often spread across an installment term, frequently 36 months, although the exact term and offer requirements vary by promotion.
The arrangement normally depends on several things continuing at the same time:
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- The specific wireless line remains active with AT&T.
- The device stays on its installment agreement for the required term.
- The account remains on any plan named in the promotion terms.
- The customer does not upgrade or pay off the device early when the offer says that doing so ends the credits.
AT&T’s general installment-plan explanation is available in Learn About Smartphone Installment Plans, while the legal agreement for installment billing is at AT&T’s Device Installment Plan terms. Those documents do not create one universal promotion; the offer attached to your line still governs.
What happens if you cancel AT&T service?
Future credits stop
When you cancel the AT&T service tied to a device promotion, the monthly promotional credits generally stop. The remaining installments are no longer offset by future credits because the line is no longer meeting the service condition of the offer.
AT&T’s promotion terms state the consequence directly: cancellation stops the credits and the remaining device balance must be paid. Its eligibility guidance puts it this way: “If you don’t, you won’t get the credit each month and the balance owed on your device will be due.”
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The unpaid device balance becomes due
Cancellation does not turn an installment purchase into a paid-off phone. You remain responsible for the unpaid principal shown on your installment agreement. The amount is account-specific: it depends on the original financing, installments already billed, credits already applied, and the remaining term. AT&T does not publish one standard payoff amount for all customers.
Review the line’s installment details before canceling so you can compare the balance that would be due with the credits you would otherwise receive over the remaining eligible months. A promotion described as “$0 per month” can still have a substantial unpaid balance if the monthly credit is what reduced the installment charge.
What cancellation does not establish
The available AT&T guidance establishes that future credits end and the remaining balance is due. It does not provide a universal rule that every previously applied credit is clawed back. Whether any other charge applies depends on the particular offer and installment agreement.
What happens if you change to another AT&T plan?
Plan eligibility is offer-specific
A plan change is not automatically harmless or automatically disqualifying. Some promotions require a named qualifying unlimited plan or another specific rate plan. If the new plan is outside those requirements, the line can lose eligibility even though it remains active with AT&T and the phone is still being financed.
Read the customer service summary and the promotion’s full terms for the affected line. Do not rely solely on the plan name shown during checkout: AT&T may distinguish between tiers, legacy versions, new-line offers, and existing-line eligibility.
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A 30-day restoration window may apply
AT&T’s “Stay Eligible for Your Promotion” guidance, updated March 3, 2026, describes a qualifying-unlimited-plan scenario in which a customer receives a notification text after becoming ineligible. In that described case, returning to a qualifying unlimited plan within 30 days of the notification text can restore the credits.
The 30-day clock is tied to the date in AT&T’s notification, not necessarily the date you first notice a missing discount on your bill. Save the message and verify the exact deadline and qualifying plans listed for your line. If you do not return within the stated period, AT&T says the monthly credits will not continue and the device balance will be due.
This is an offer-specific correction route, not a blanket promise for every promotion. A different deal may have different plan rules, deadlines, or no restoration option.
Some new-line cancellations have separate terms
The same AT&T eligibility page separately addresses certain new-line cancellations made within 90 days and describes a 30-day reinstatement route. That language applies only to the offers and circumstances covered on that page. If your notice mentions a 90-day condition, follow that notice rather than assuming the qualifying-unlimited-plan rule applies.
Upgrading or paying off the phone early
AT&T warns that monthly discounts may stop if you upgrade or pay off the device before the promotional installment term ends. An early payoff removes the installment balance, but it does not necessarily preserve the remaining promotional credits. An upgrade can also replace the device or otherwise break the conditions of the original offer.
Before accepting an upgrade or making a payoff, ask which credits remain, which event ends them, and whether the new transaction creates a separate promotion. Treat the original offer and any new offer as separate agreements unless AT&T’s written terms say otherwise.
Keep, change, or cancel: the practical comparison
| Choice | Plan requirement | Line and device status | Credit outlook | Balance risk |
|---|---|---|---|---|
| Keep the current plan | Must continue meeting the promotion’s stated plan requirement. | Line stays active and device remains on the required installment arrangement. | Credits can continue for eligible billing periods; AT&T says some credits may take up to two bill periods to appear. | Normal installments continue, reduced by the promotional credit shown on the bill. |
| Change to another AT&T plan | Depends on whether the new plan is listed as qualifying for that offer. | Line and device may remain active, but eligibility can change. | May continue, stop, or be restorable under an offer-specific notice. In the cited unlimited-plan case, a return within 30 days of the text can restore credits. | If eligibility is not restored, future credits end and the remaining device balance is due. |
| Cancel AT&T service | Service condition is no longer met. | AT&T line closes; installment obligation remains until paid. | Future promotional credits stop. | Remaining unpaid device balance is due; the exact amount is not stated universally and must be checked on the account. |
| Upgrade or pay off early | Offer terms may require the original device and installment term. | Device is replaced or the installment is closed early. | AT&T says monthly discounts may stop. | Any payoff amount and the effect on credits depend on the agreement and promotion. |
What to check before changing or canceling
- Identify the exact line and promotion. Note the phone, wireless number, order date, trade-in or new-line condition, monthly credit, and advertised installment term. Accounts with several devices can have different rules on each line.
- Read the customer service summary. AT&T says this summary can confirm offer requirements. Look for the qualifying plan, required service period, device condition, and any early-upgrade language.
- Open the installment agreement. Record the current unpaid balance and the number of installments left. Do not infer the balance from the current monthly charge, because the credit may be masking the full installment amount.
- Verify the destination plan. If you are changing plans, ask AT&T to confirm in writing that the new plan qualifies for this specific promotion, not merely that it is an unlimited plan or a current offer.
- Search for an eligibility notification. If AT&T texted or otherwise notified you that the line became ineligible, record the message date and the stated deadline. The described 30-day correction period runs from that notification.
- Inspect the bill’s discount details. AT&T directs customers to Last bill → View discounts to see savings. Save a copy before making a change so you can compare later bills.
- Compare the two outcomes. Weigh the remaining device balance against the future credits you would receive by staying eligible. The future-credit value is the monthly credit multiplied by the remaining eligible billing periods, subject to the offer’s conditions.
How to troubleshoot credits that disappeared
First, allow for billing timing
AT&T notes that credits can take up to two bill periods to appear in some situations. A delay alone does not prove the promotion was canceled. Check the next bills and the discount detail rather than judging from the total amount due on one statement.
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Compare the plan on the affected line with the qualifying-plan language in the customer service summary and promotion terms. A plan change, even within AT&T, can be the reason a credit stopped.
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Use the notification deadline if it applies
If your notice describes the qualifying-unlimited-plan correction, switch back to an eligible plan before the 30-day deadline stated in the text. Keep confirmation of the change. Do not assume that switching back after the deadline, or switching back under a different promotion, will restore credits.
Rule out an early upgrade or payoff
Review recent orders and payments. AT&T says an early upgrade or payoff can end monthly discounts, so a missing credit after either event may be consistent with the offer terms rather than a billing error.
Escalate with documents
When contacting AT&T, provide the line number, device, promotion name or order record, installment agreement, customer service summary, notification text, and bills showing the missing credit. Ask the representative to identify the precise eligibility condition that failed and the date it changed. If the terms say credits should continue, request a correction and ask when it will appear; AT&T’s guidance allows up to two bill periods in some cases.
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- Locate Discounts or Credits on Your Bill explains where to view discounts and how AT&T displays savings.
- Stay Eligible for Your Promotion, updated March 3, 2026, describes the qualifying-unlimited-plan notice and 30-day restoration example, plus separate new-line cancellation language.
- AT&T Wireless Deals and Offers contains current promotion terms, which can change over time.
- Device Installment Plan terms define the financing obligation that remains separate from promotional credits.
- Learn About Smartphone Installment Plans explains how installment billing and device payments work generally.
Because promotion terms change and legacy offers can differ from current ones, use the version attached to your order or account. The public pages are useful for context, but they cannot replace the line-specific documents.
Examples of how the rules play out
Canceling with installments left
You cancel a line while the phone still has unpaid installments. The monthly credit stops with the service, and AT&T bills the remaining device balance according to the installment agreement. The exact payoff is found in the account, not in a universal AT&T price list.
Moving to a nonqualifying plan
You keep the line and phone but move to a plan that the promotion does not accept. The device can remain financed, yet the credit can stop because the plan condition failed. If AT&T’s notice gives the qualifying-unlimited-plan remedy, returning within the stated 30-day window may restore the credits; otherwise, the balance becomes due under the notice’s terms.
Waiting for a delayed credit
You make no change, but a credit is absent from one bill. Check Last bill → View discounts and the following statements. AT&T says some credits take up to two bill periods to show, so investigate after that interval unless your notice gives an earlier deadline.
The key decision
Before canceling, compare the immediate obligation—the unpaid device balance—with the future credits you would surrender. Before changing plans, obtain confirmation that the destination plan qualifies for the exact promotion and preserve any notification deadline. If you already changed plans, the safest response is to read the notice, check the discount view, and use any stated 30-day correction route promptly. No single dollar amount or eligibility rule applies to every AT&T promotion.
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