Costco AT&T $350 Switching Offer: 2026 Member Benefits, Wireless Plans and Costs

How Does the $350 AT&T Switching Offer Through Costco Work?

Costco members considering a new wireless provider may be interested in a current AT&T switching promotion worth up to $350 in combined benefits. The offer includes monthly wireless bill credits and a Costco Virtual Shop Card for qualifying customers who switch from an eligible carrier.

The promotion is available through November 15, 2026, subject to AT&T's published terms and eligibility requirements.

Before switching, it's important to understand how the benefits are paid, which wireless plans qualify, what phone financing involves, and how much the service could cost over time.

This guide explains the Costco AT&T $350 switching offer, its requirements, available wireless plan options, and the factors customers should compare before making a decision.

1. What Is the Costco AT&T $350 Switching Offer?

AT&T currently advertises a combined promotional value of $350 for eligible Costco members who transfer a qualifying phone number, purchase a new smartphone using an installment agreement, and activate eligible wireless service.

The promotional value consists of two separate benefits.

The $350 is not provided as a single cash payment.

The wireless bill credits are applied over time, while the Costco Shop Card is a separate reward that eligible customers receive after completing the required steps.

The offer is available at select participating Costco warehouse locations.

2. Who Qualifies for the Costco AT&T Switching Benefits?

Not every Costco member automatically qualifies for the promotion.

The published AT&T offer includes these principal requirements:

• Purchase an eligible new smartphone.
• Use a qualifying installment agreement, generally lasting 36 months.
• Transfer a new wireless number from an eligible competing carrier.
• Activate a qualifying AT&T postpaid wireless plan.
• Meet applicable financing and credit-approval requirements.
• Maintain eligible service and satisfy the applicable promotional conditions.

The wireless line must remain active and in good standing for the required periods.

Customers bringing an existing phone without purchasing an eligible new device do not qualify for the $100 Costco Virtual Shop Card under this particular promotion.

Other AT&T offers may be available for different types of activations.

3. How Much Do AT&T Wireless Plans Cost Through Costco?

Wireless plan pricing is an important part of evaluating the switching offer.

Under the published promotional terms, the qualifying AT&T Value 2.0 plan starts at approximately $60 per month for a new customer's single line, before applicable discounts, taxes and fees.

Customers may also consider other eligible AT&T unlimited plans depending on their data needs, available features and budget.

Factors to Compare When Choosing a Plan

Customers should confirm the current price and plan features before placing an order.

The $60 starting price is not a guaranteed final bill for every customer.

4. How Do the $250 AT&T Bill Credits Work?

The $250 portion of the promotion is provided through monthly wireless bill credits rather than an upfront payment.

For qualifying customers, AT&T applies approximately $6.95 in monthly credits over a 36-month installment period.

The credits generally begin within the first three billing cycles, with catch-up credits applied when applicable.

What Happens If You Cancel Early?

Customers who cancel qualifying wireless service before the installment agreement is complete may lose their remaining promotional credits.

They may also be responsible for paying the unpaid balance of the financed smartphone.

The published offer also states that canceling service on another line within 90 days after activating the promotional line can affect eligibility for the credits.

For this reason, customers should compare the full cost of maintaining service rather than evaluating the $250 benefit alone.

5. How Do You Receive the $100 Costco Shop Card?

The second part of the offer is a $100 Costco Virtual Shop Card.

Eligible customers receive instructions through a text message sent to the wireless number associated with their AT&T account.

According to the current promotional terms, the digital Shop Card link is sent within approximately 60 days after the qualifying device purchase.

Customers must keep the required wireless lines active and in good standing through the fulfillment process.

The Shop Card is not generally redeemable for cash, except where required by law.

It is also important to understand that this benefit is subject to the specific terms of the switching promotion and cannot necessarily be combined with every other AT&T discount.

6. What About AT&T Phone Financing Through Costco?

The current switching promotion requires purchasing an eligible smartphone using a qualifying installment agreement.

The published promotion specifies a 36-month, 0% APR installment plan for eligible purchases.

Customers who meet the relevant credit requirements may qualify for no down payment. Other customers may need to make an initial payment.

Sales tax on the full retail price of the smartphone is due at purchase under the published terms.

Phone Financing: What to Consider

AT&T also advertises separate trade-in offers on eligible premium smartphones. Those promotions may have different plan requirements, credit amounts and restrictions.

Customers should not assume the $350 switching offer can be combined with every advertised phone promotion.

7. Comparing the Ways to Switch to AT&T

Different types of customers may want to compare several switching options.

The most suitable option depends on the customer's existing device, monthly budget, preferred phone model and intended length of service.

8. Are There Additional Benefits for Costco Members?

Costco's AT&T wireless page also lists separate promotions involving new-line activations, device upgrades, and qualifying tablet or wearable activations.

These benefits are distinct from the $350 switching offer.

For example, an existing AT&T customer upgrading a phone may have access to an upgrade-related promotion without meeting the requirements for a new customer transferring a number.

Costco members should review each promotion individually to understand which benefits apply and whether multiple offers can be combined.

9. What Should You Compare Before Switching to AT&T?

The advertised reward is only one part of the decision.

Monthly Wireless Costs

Compare the regular monthly service charges, device installments, discounts and taxes.

A promotional credit can reduce expenses, but it does not necessarily make a plan less expensive than competing services.

Coverage and Network Performance

Check AT&T's official coverage information for the locations where service will be used most frequently.

Coverage and connection performance vary by location, equipment and network conditions.

Phone Financing Requirements

Review the total device price and any remaining balance that could become payable if service ends early.

Reward Eligibility

Confirm that the chosen device, transferred number and wireless plan satisfy the offer conditions.

Long-Term Value

Consider whether the selected wireless service remains affordable throughout the period required to receive the full promotional credits.

10. Pros and Cons of Switching Through Costco

Potential Advantages

• Up to $350 in combined promotional benefits for qualifying customers.
• Monthly bill credits that can reduce eligible device-related costs.
• A separate $100 Costco Virtual Shop Card.
• Access to eligible AT&T wireless plans and smartphone financing.
• A promotional activation-fee waiver under the published switching terms.

Possible Disadvantages

• The full $250 bill-credit amount is distributed over 36 months.
• The promotion requires a qualifying new smartphone purchase and number transfer.
• Service cancellation can stop future credits and leave an unpaid device balance.
• Not all devices, plans, carriers or customers qualify.
• Some competing promotions cannot be combined.
• Monthly service charges, taxes and other applicable costs still apply.

11. Frequently Asked Questions

Can Costco members get $350 for switching to AT&T?

Eligible Costco members may receive a combined promotional value of up to $350 when they satisfy the applicable device purchase, number-transfer and wireless-plan requirements.

The value consists of $250 in monthly bill credits and a separate $100 Costco Virtual Shop Card.

Is the $350 AT&T switching reward paid in cash?

No. The offer combines monthly bill credits with a digital Costco shopping reward. It is not an immediate $350 cash payment.

How long does it take to receive the Costco Shop Card?

Under the published terms, qualifying customers receive a text message containing the Virtual Shop Card claim link within approximately 60 days of their eligible device purchase.

Can I get the $350 offer without buying a new phone?

The advertised promotion requires an eligible new smartphone purchased through an installment agreement. Other AT&T promotions may apply to customers who bring their own devices.

Does AT&T offer plans for adults aged 55 and older?

AT&T offers certain age-specific wireless plans. Costco's published switching terms indicate that eligible customers may activate on an AT&T 55+ plan, which could have different pricing. Customers should confirm plan and promotional eligibility directly.

What happens if I cancel AT&T before 36 months?

Qualifying monthly promotional credits stop when service is canceled, and the unpaid device installment balance may become due.

When does the Costco AT&T $350 offer end?

The offer is advertised through November 15, 2026, subject to any modifications or early termination permitted by the promotional terms.

12. Final Thoughts

The Costco AT&T switching promotion provides an opportunity for qualifying members to receive up to $350 in combined benefits when transferring an eligible wireless number and purchasing a new smartphone with a qualifying plan.

However, the advertised value is made up of monthly bill credits and a separate digital Costco Shop Card, not an upfront cash payment.

Before switching, compare the monthly wireless plan cost, device installment payments, long-term service requirements, and reward eligibility conditions.

Understanding the complete cost of wireless service can help customers determine whether the available Costco AT&T promotion fits their needs and budget.

Official Sources

• Costco USA — AT&T Wireless Offers
• AT&T Wireless Plans
• AT&T Wireless Coverage

Offer information reviewed October 27, 2026. Prices, eligibility, rewards and promotional terms are subject to change. This is an independent informational article and is not an official Costco or AT&T publication.