Costco T-Mobile: 8 Incredible Deals Saving You Up to $450 in 2026

What is Costco T-Mobile?

Costco T-Mobile is a partnership between Costco warehouse stores and T-Mobile wireless service. This means you can sign up for T-Mobile phone plans, buy new phones, and get special deals at Costco locations across the USA. The partnership gives Costco members exclusive discounts and promotions that you cannot get anywhere else. You save money on phones, activation fees, and get free Costco shop cards when you switch or upgrade.

T-Mobile kiosks are now inside many Costco warehouses. Real T-Mobile employees work at these kiosks to help you switch carriers, add new lines, or upgrade your phone. The best part is that Costco T-Mobile deals are better than what you get at regular T-Mobile stores or online. You get extra rewards just for being a Costco member.

The mobile Costco promotion changes throughout the year, but there are always good deals available. Right now in 2025, you can get up to $450 per line when you switch to T-Mobile at Costco. This includes a Costco gift card, a T-Mobile gift card, plus a prepaid Visa card. Many families save thousands of dollars by taking advantage of these offers. Whether you are a new T-Mobile customer or already have service, Costco T-Mobile has deals that can save you money.

Why Choose Costco T-Mobile Over Regular T-Mobile Stores?

Shopping for T-Mobile service at Costco gives you benefits you cannot get at regular stores. The biggest advantage is the money you save. Every time you do a transaction at Costco with the T-Mobile kiosk, they waive the $35 device connection charge. This fee is charged at all other T-Mobile stores, so you instantly save $35 per line just by going to Costco.

Key Benefits of Using Costco T-Mobile:

Waived Activation Fees: The $35 device connection charge is waived for every transaction. If you are adding 4 lines, that is $140 in savings right away.

Exclusive Promotions: The Costco T-Mobile promotion 2025 offers are not available anywhere else. You get larger gift cards and better rebates than regular T-Mobile stores.

Costco Shop Cards: Most deals include a Costco shop card that T-Mobile gives you. These cards can be used to buy anything at Costco, from groceries to gas to electronics.

Stack Deals: You can often combine Costco T-Mobile deals with other T-Mobile promotions. For example, get a free phone plus the Costco bonus rewards.

Expert Help: Real T-Mobile corporate employees work at T-Mobile inside Costco kiosks. They know all the latest deals and can help you pick the best plan.

No Pressure: Unlike some phone stores, Costco employees do not work on commission. They help you find what works best without pushing you to buy more than you need.

Many people on Costco T-Mobile Reddit forums say they saved hundreds or even thousands of dollars by switching to Costco instead of going to a regular store. The deals are real, and the process is easy. For more tips on using retail partnerships effectively, check out this helpful guide.

Current Costco T Mobile Promotion 2025

The Costco T-Mobile promotion 2025 is one of the best deals T-Mobile has offered in years. From June 18 through July 20, 2025, Costco members can get up to $450 per line when they switch to T-Mobile and buy a new phone. This deal works for both new customers and existing T-Mobile customers who want to add lines.

Here is how the $450 Breaks Down:

$200 Costco Shop Card: You get a $200 digital Costco shop card for each qualifying line. This card can be used at any Costco warehouse or on Costco.com. Buy groceries, gas, electronics, or anything else Costco sells.

$250 Prepaid Visa Card: You also get a $250 virtual prepaid Visa card. This card can be used at T-Mobile stores or Costco locations. It works like a debit card for purchases.

Total Value: $200 + $250 = $450 per line in rewards.

Requirements to Get the Full $450:

Visit a Costco warehouse with a T-Mobile kiosk
Port your phone number from an eligible carrier (AT&T, Verizon, Xfinity, Spectrum, UScellular, Claro, or Liberty Puerto Rico)
Activate a new line on the Experience More or Experience Beyond plan
Buy a new phone with a payment plan
Be a Costco member

The Costco T-Mobile promotion status can be checked on the T-Mobile promotions website. After you activate your line and buy your phone, you need to register your rebate online. The Costco T-Mobile rebate takes about 13 weeks to process. First, the Costco shop card arrives as a digital card in your email. Then the Visa card comes separately.

Multiple Lines Get Even More:

You can get up to 12 of the $200 Costco shop cards per account
Maximum of 4 of the $250 Visa cards per account
Total potential value of $3,400 for switching 12 lines

This makes the Costco T-Mobile deals for existing customers great, too. If you are already on T-Mobile but want to add lines for your kids or family, you can still get these rewards. Just make sure the new lines are on qualifying plans.

Costco T Mobile Upgrade Promotion

Already a T-Mobile customer? You can still save money with the Costco T-Mobile upgrade promotion. When you upgrade your phone at Costco, you get special benefits that are not available at regular T-Mobile stores.

Upgrade Benefits at Costco:

$100 Costco Shop Card: When you upgrade your phone at Costco with a payment plan, you get a $100 Costco gift card. This is in addition to any T-Mobile trade-in offers.

No $35 Upgrade Fee: Regular T-Mobile stores charge $35 to upgrade your phone. Costco waives this fee completely.

Stack with Trade-In Deals: You can trade in your old phone for credit and still get the $100 Costco card. For example, trade in an iPhone 13 for $1,100 in bill credits, plus get the $100 Costco card.

Same Day Service: The T-Mobile kiosk at Costco can upgrade your phone the same day. You walk in with your old phone and walk out with a new one, plus your digital shop card code.

Many existing customers do not know about these upgrade deals. They go to regular T-Mobile stores and miss out on the extra $100. Always check if your local Costco has a T-Mobile kiosk before upgrading. The Costco T-Mobile phone number to call is 833-428-1765. You can call this number to ask about upgrade promotions before visiting the warehouse.

The Costco promo T-Mobile offers for upgrades changes every few months. Sometimes the shop card is $100, other times it might be $150. Check the Costco website or call the T-Mobile hotline to see the current Costco T-Mobile offer.

Costco T Mobile Home Internet Deals

Did you know Costco also sells Costco T-Mobile home internet? T-Mobile offers 5G home internet service that replaces your cable or DSL internet. When you sign up for Costco, you get special rewards that you cannot get anywhere else.

Current Home Internet Promotion:

$100 Costco Shop Card: Sign up for T-Mobile 5G Home Internet at Costco and get a $100 Costco shop card after 90 days of service.

No Equipment Fees: The router is free. No rental fees ever.

No Data Caps: Unlimited data with no throttling or caps.

Price Lock Guarantee: Your rate will not go up while you keep your service.

The Costco T-Mobile home internet service costs around $50 to $60 per month, depending on your plan. This is often cheaper than cable internet. The 5G home internet works well in most areas, especially if you have good T-Mobile coverage where you live.

How to Sign Up:

Visit a Costco warehouse with a T-Mobile kiosk
Check if 5G home internet is available at your address
Sign up and take home the router
Plug in the router and connect your devices
After 90 days, receive your $100 Costco shop card

The Costco T-Mobile 450 promotion sometimes includes home internet as part of the deal. If you switch your phone lines and add home internet, you might qualify for even more rewards. Ask the T-Mobile representative at Costco about bundling deals.

Not all addresses qualify for T-Mobile home internet. The service works best in areas with strong 5G coverage. The Costco T-Mobile employees can check your address right at the kiosk to see if you qualify. For more information on digital services and connectivity, explore this resource.

How to Check Your Costco T-Mobile Rebate Status

After you sign up for T-Mobile at Costco, you need to track your rewards. The Costco T-Mobile rebate status can be checked online at the T-Mobile promotions website. Here is exactly what to do:

Step-by-Step Rebate Tracking:

1. Complete Your Purchase:

Buy your phone and activate your line at Costco
Get a confirmation code from the T-Mobile representative
Save your receipt and all paperwork

2. Register Your Rebate Online:

Go to https://promotions.t-mobile.com/costco
Enter your promotion code (given to you at the time of purchase)
Fill in your phone number and account details
Submit within 30 days of activation

3. Track Your Status:

Visit the same website to check the Costco T-Mobile promotion status
Log in with your phone number or confirmation code
See if your rebate is pending, approved, or completed

4. Receive Your Rewards:

The Costco shop card arrives by email as a digital card
A Visa card also comes by email
Total wait time is usually 10 to 13 weeks

Common Questions About Rebates:

Why is it taking so long? The Costco T-Mobile rebate takes 13 weeks because Costco waits 90 days to make sure you keep your service. Then they need a few more weeks to process the card.

Where is my email? Check your spam folder. The email comes from costco@digitalshopcard.costco.com for shop cards. The Visa card email comes from a different address.

What if I never got it? After 13 weeks, call T-Mobile customer service at the Costco T-Mobile phone number (833-428-1765). They can check your rebate status and reissue cards if needed.

Do I need to do anything after 90 days? No. As long as you registered your rebate within 30 days of activation and kept your service active, the cards will come automatically.

Many people on CostcoT-Mobile Reddit complain about long wait times for rebates. This is normal. Be patient and keep your service active. The rewards will come. Just make sure you registered properly within 30 days.

Costco iPhone 16 T Mobile Deals

Looking for the newest iPhone? The Costco iPhone 1T-Mobile deals are some of the best available. T-Mobile offers the iPhone 16 for free when you trade in an eligible phone and add a new line. At Costco, you get this free phone deal PLUS the extra Costco rewards.

iPhone 16 Deal Breakdown:

Free iPhone 16 Pro:

Trade in an iPhone 12 Pro or newer
Add a new line on the Experience More or Beyond plan
Get iPhone 16 Pro for free (via 24 monthly bill credits)
PLUS get $450 in Costco rewards ($200 shop card + $250 Visa)

How Much You Save:

iPhone 16 Pro costs $999
You get it free with trade-in.
Plus $450 in gift cards
Total value over $1,400

The iPhone Costco T-Mobile promotions change based on which iPhone model you want. The iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max all qualify for deals. Older models like the iPhone 15 or the iPhone SE also have promotions, but the trade-in values might be different.

Other iPhone Deals:

No Trade-In Required: Some plans give you discounts on an iPhone even without trading in. You might get $200 to $400 off without any trade-in.

AAA and Military Discounts: These can stack with Costco deals. If you have AAA or are in the military, mention it to get even more savings.

Family Plans: Switching multiple lines gets you rewards for each line. A family of 4 could get $1,800 in Costco rewards plus free phones.

When you buy Costco iPhone tmobile deals, make sure you understand the payment plan. The free phone comes as bill credits spread over 24 months. If you cancel service early, you will owe the remaining phone balance. But if you keep your service for 2 years, the phone is completely free, plus you get the Costco bonuses.

Is Costco T-Mobile Cheaper Than Other Options?

Many people ask: Is Costco T-Mobile cheaper than buying directly from T-Mobile or other carriers? The answer is yes, but it depends on what you are comparing. Let us break down the costs.

Comparing Regular T-Mobile to Costco T-Mobile:

What You Get	Regular T-Mobile	Costco TMobile
Activation Fee	$35 per line	$0 (waived)
Shop Card	$0	$200
Visa Card	$0	$250 (with port-in)
Monthly Plan Cost	Same	Same
Phone Deals	Same	Same + Costco bonuses

As you can see, the monthly plan costs are the same whether you sign up at Costco or a regular T-Mobile store. The difference is the upfront savings and rewards. With a family of 4, you save $140 on activation fees, plus get $1,800 in rewards. That is almost $2,000 in extra value.

Costco T-Mobile vs Other Carriers:

T-Mobile at Costco typically offers better deals than AT&T or Verizon. This is because T-Mobile has an exclusive partnership with Costco. AT&T and Verizon might have kiosks at some locations, but their deals are not as good.

Prepaid Options: Services like Mint Mobile or Cricket might have lower monthly costs, but they do not offer the same rewards. You would not get $450 per line with a prepaid carrier.

Online Deals: Shopping on T-Mobile.com sometimes has special promotions, but you miss out on the Costco shop cards and waived activation fees.

The Costco membership T-Mobile partnership is worth it if you are switching carriers or adding lines. Even if you only switch one line, the $450 in rewards ($200 shop card + $250 Visa) more than pays for a year of Costco membership. And you can use that membership to save money on other purchases, too.

Where to Find Costco T Mobile Kiosks

Not every Costco has a T-Mobile kiosk. Right now, T-Mobile is in about 21% of Costco warehouses across the USA. That is roughly 178 locations out of 847 total Costco stores. Before you make a trip, you should check if your local Costco has Costco phones for sale.

How to Find a T-Mobile Kiosk:

1. Check the Costco Website:

Go to Costco.com
Look at the T-Mobile showcase page
Some locations are listed there

2. Call Your Costco:

Call your local Costco warehouse
Ask if they have a T-Mobile wireless kiosk
Get the Costco T-Mobile hours of operation

3. Call T-Mobile Costco Line:

Dial 833-428-1765
This is the special number for T-Mobile at Costco
They can tell you which locations have kiosks

4. Visit in Person:

T-Mobile kiosks are usually near the entrance or electronics section
Look for the T-Mobile sign and pink branding
Costco employees can direct you to the kiosk

Popular Cities with T-Mobile at Costco:

Many major cities have multiple Costco locations with T-Mobile kiosks:

Los Angeles, California
Phoenix, Arizona
Dallas, Texas
Atlanta, Georgia
Seattle, Washington
Denver, Colorado
And many more

Some areas have lots of T-Mobile at Costco locations, while rural areas might not have any nearby. The program is still expanding, so more locations may get kiosks in the future.

The Costco T-Mobile hours usually match Costco warehouse hours. Most Costcos are open from 10 AM to 8:30 PM on weekdays, 9:30 AM to 6 PM on Saturdays, and 10 AM to 6 PM on Sundays. However, kiosk hours might be slightly different. It is best to call ahead to make sure someone is working at the T-Mobile kiosk when you plan to visit. For more location-based services tips, see this guide.

Tips for Getting the Best Costco T-Mobile Deals

Want to maximize your savings? Follow these expert tips to get the most value from Costco card T-Mobile promotions:

Before You Go to Costco:

1. Research Current Promotions:

Check the Costco website for current deals
Read Costco and T-Mobile Reddit forums for real user experiences
Call 833-428-1765 to ask about active promotions

2. Know Your Current Carrier Details:

Find out if you are eligible to port your number
Check if you have any contract obligations with your current carrier
Look up your account number and PIN (needed for porting)

3. Check Your Phone Compatibility:

Make sure your current phone is unlocked if you want to bring it
Check if T-Mobile works well in your area
Look at coverage maps on T-Mobile.com

4. Calculate Your Savings:

Compare your current monthly bill to T-Mobile plans
Factor in the Costco rewards and activation fee savings
Consider whether the Costco T-Mobile deals for existing customers apply to you

At the Costco Kiosk:

5. Ask About Stacking Deals:

Can you combine the Costco promo with other T-Mobile offers?
Are there trade-in deals that work with the Costco rewards?
What about AAA, military, or senior discounts?

6. Understand the Timeline:

When will you receive the Costco shop card?
How long until the Visa card arrives?
What is the Costco T-Mobile promotion status checking process?

7. Get Everything in Writing:

Save all receipts and confirmation codes
Write down the promotion codes you are using
Take a photo of any paperwork before leaving

8. Register Your Rebate Immediately:

Do not wait to register your rebate online
You have 30 days, but do it within a week for the best results
Save confirmation emails in a special folder

After Your Purchase:

9. Keep Your Service Active:

Do not cancel lines before you get your rewards
The 90-day waiting period is important
If you have problems, contact T-Mobile, not Costco

10. Track Your Rebate:

Check Costco T-Mobile rebate status every few weeks
If 13 weeks pass and you have not received anything, call immediately
Do not assume it got lost – follow up proactively

Many people miss out on rewards because they forget to register their rebate, or they cancel service too early. The Costco T-Mobile upgrade promotion and new line promotions require you to keep service for at least 90 days. Plan to keep your service for the full 2 years to avoid any phone balance charges.

Common Questions About Costco T-Mobile

Do I need a Costco membership? Yes, you must be a Costco member to take advantage of the T-Mobile Costco promotions. The basic Gold Star membership costs $65 per year. The Executive membership costs $130 per year and gives you 2% cash back on purchases. Either membership works for T-Mobile deals.

Can I do this online, or must I visit a warehouse? You must visit a physical Costco warehouse with a T-Mobile kiosk. You cannot do Costco T-Mobile online. The deals are only available in-store at locations that have kiosks.

What phones qualify for the deals? Almost any new phone qualifies. iPhones, Samsung Galaxy, Google Pixel, and other brands all work with the promotions. You must buy the phone on a payment plan, not outright.

How long do I have to keep the service? You need to keep your lines active for at least 90 days to get the Costco rewards. But remember, if you got a free or discounted phone, those bill credits last 24 months. Cancel early, and you owe the phone balance.

Can I bring my own phone? Some deals let you bring your own device (BYOD). You might get a smaller Costco shop card, like $75 instead of $200. Check current BYOD promotions with the T-Mobile rep.

What if my local Costco does not have T-Mobile? You might be able to call the special Costco T-Mobile line at 833-428-1765 and do transactions over the phone. Some deals work this way, but not all. The best deals require an in-store visit.

Are the deals the same in Hawaii, Alaska, and Puerto Rico? Deals might vary by region. Puerto Rico has some unique offers. Always check with your local Costco warehouse.

What happens if I return my phone to Costco? Costco has a generous return policy for electronics. You can return items within 90 days. However, returning your phone will cancel your wireless promotions. You will not get the Costco shop cards if you return the phone.

Conclusion: Should You Switch to Costco T-Mobile

Costco T-Mobile offers some of the best wireless deals available in 2025. With up to $450 per line in rewards, waived activation fees, and stackable promotions, you can save thousands of dollars by switching to Costco instead of a regular store. Whether you are a new T-Mobile customer or an existing subscriber looking to add lines or upgrade phones, the Costco T-Mobile promotion gives you more value.

The process is simple: visit a Costco warehouse with a T-Mobile kiosk, bring your phone number from an eligible carrier, activate on a qualifying plan, and buy a new phone. Within 13 weeks, you will receive your Costco gift card, T-Mobile rewards – a $200 Costco shop card plus a $250 Visa card. These rewards can be used at Costco for groceries, gas, and merchandise, making them very flexible.

The Costco T-Mobile deals for existing customers and the Costco T-Mobile upgrade promotion mean even current subscribers can benefit. Add a line for your teenager, upgrade to the newest iPhone, or sign up for Costco T-Mobile home internet to get additional rewards. Every transaction saves you the $35 activation fee and often includes bonus Costco shop cards.

While the Costco T-Mobile rebate takes a few months to arrive, most customers say it is worth the wait. Just make sure you register your promotion online within 30 days, keep your service active for 90 days, and check your Costco T-Mobile rebate status regularly. Follow these steps, and you will maximize your savings.

Before you make any changes to your wireless service, calculate your total costs and compare them to your current plan. Make sure T-Mobile has good coverage in your area. Then visit your local Costco warehouse or call 833-428-1765 to learn about current promotions. With the right timing and the right deal, you could save enough money to pay for your Costco membership and then some.

Are you ready to switch to T-Mobile at Costco? What questions do you still have about the Costco T-Mobile promotion 2025?

References and Resources

To learn more about Costco T-Mobile deals and stay updated on the latest promotions, explore these trusted sources:

T-Mobile Costco Promotions Page: https://promotions.t-mobile.com/costco – Official page for checking rebate status and registering your Costco promotions

Costco Cell Phones Section: https://www.costco.com/cell-phones.html – Browse T-Mobile phones and current deals available at Costco warehouses

T-Mobile Store Locator (Raleigh Location): https://www.t-mobile.com/stores/bd/t-mobile-raleigh-nc-27603-1c21 – Find T-Mobile at Costco locations and hours of operation

T-Mobile Store Locator (California Location): https://www.t-mobile.com/stores/bd/t-mobile-city-of-industry-ca-91748-4c67 – Additional store information for T-Mobileiosks

ReT-Mobileobile at Costco Discussion: https://www.reddit.com/r/tmobile/comments/1niplvs/tmobile_at_costco/ – Real customer experiences and discussions about Costco T-Mobile deal.s

Tech Tools and Resources: https://lopalapc2547.com/2025/07/30/how-to-use-tech-tools-g15tooltech/ – Learn how to maximize your use of tech services and retail partnerships

Free Digital Resources: https://lopalapc2547.com/2025/06/02/is-lopalapc2547-free/ – Additional guides for saving money on services

Lifestyle and Technology Hub: https://lopalapc2547.com/2025/05/19/lopalapc2547/ – Comprehensive resources for tech-savvy consumers

T-Mobile Costco Phone Line: Call 833-428-1765 for questions about promotions, phone availability, and kiosk locations near you