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Xfinity Mobile Promo Codes + Cashback

September 2026's best selection of offers, tested by our team

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Our team tests and confirms that each code works before it goes live.
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Minimum spends, restrictions, and expiry dates are clearly noted.
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Details on how we verify discounts
Hostinger
BOOST OF THE DAY
Hostinger

Up to 60% Cashback

About Xfinity Mobile

Xfinity Mobile launched in 2017, made to work alongside the Xfinity Internet plans millions of homes already paid for. The biggest reason shoppers choose Xfinity Mobile is the chance to lower their total bill by bundling it with Xfinity Internet instead of paying two separate companies. Stack your phone service on top of internet you already have, and the combined cost often comes out lower than juggling a standalone carrier.

Need help with your account or a new phone? You can reach Xfinity Mobile support in three easy ways. Call 1-888-936-4968 for billing and plan questions. Use the Xfinity app to manage everything right from your phone. Or visit an Xfinity Store to get help in person, where you can also see and test a device before you buy.

How to get your full refund on Xfinity Mobile returns

You have 14 days to return or exchange a device and 30 days for accessories, timed from the delivery or order date. Miss that window and there's no refund.

Most device returns cost you a $35 restocking fee, so weigh that against your plan before sending anything back. Two things skip the fee completely: warranty exchanges and accessory returns.

To keep your full refund, send the device back like-new with the original box and everything inside it, including the charger and any extras. Missing parts or damage can trigger added charges. Before shipping, erase your personal info, and Apple users should turn off "Find My" and "Stolen Device Protection" so the return doesn't stall.

Watch the 20-day clock too. Xfinity has to receive your device within 20 days of your return request. Miss it, and you can lose payments already made, still get hit with a fee, and not get the device back. Drop it at FedEx or schedule a pickup within a week to stay safe.

To start, open the Xfinity app, find your order, and begin there, or visit an Xfinity Store. Want to keep your number? Chat with an agent inside the 14-day window and hold onto your SIM card for the new phone.

5 active offers2 offers added last week
Best Offer
$400 OFF

Get $400 Off Select iPhones with New Moblie Plus Line

Ends in 2 days
$1200 OFF

Up to $1,200 Off The Latest Samsung Galaxy Phones

Ends in 3 days
$10 Cashback

Earn $10 Cashback on Your Orders

All year round
$300 OFF

Enjoy $300 Off Select Smartwatches for Diamond Members

Ends in 22 days
$30 OFF

$30 Off Xfinity Mobile Plus Plan

Ends tomorrow
FREE SHIPPING

Phones Ship Free

Ends in 10 days

Missed these coupons?

Our team has found the below offers to no longer be valid

$600 OFF
$600 Discount on New Samsung Devices with Mobile Plus
$200 OFF
Save $200 on New Phones with Anytime Upgrade
$1100 OFF
Save up to $1,100 on Google Phones with Trade-In

Frequently asked questions about Xfinity Mobile

Trade-in your devices for savings

Trading in your old phone for around $830 cashback, depending on your model and its condition. The value comes back as a check from Xfinity's trade-in partner, Assurant, so it's real money you can put toward whatever you want.

Start your trade-in online to see what your device is worth, and Assurant will give you an estimated offer up front. If you accept it, you'll ship your old phone back with the free label they provide. Watch the clock here. Assurant has to receive your trade-in within 21 days of your order date, so mail it early to keep your offer safe.

If the phone isn't in the shape you reported, they'll let you know and come back with an adjusted offer, which is why an honest condition rating up front saves you from a surprise payout later.

The math works best when your phone still holds solid value, since older or damaged devices bring smaller offers. Check your estimate before you commit so you know exactly what your trade is worth going in.

How to use an Xfinity Mobile promo code

Most Xfinity Mobile savings apply on their own as monthly bill credits, so a lot of the time you won't enter a code at all. The discount just shows up at checkout and carries over to your bill.

When there is a code to use, first, add your device or plan to the cart.

On desktop:

  1. Head to checkout and find the "Have Promo Code?" box before the payment step.

  2. "Apply" your code, then confirm the total drops before you submit your order.

On the Xfinity app:

  1. Open the order summary drop-down link, where the code field appears.

  2. Enter your code and "Apply" it to activate your new total amount.

Shopping at the store instead? Check with the staff to see if your code can be applied at the register.

Few things worth checking before you submit

  • Codes do not stack with a trade-in or member credits. Since you usually have to pick just one, compare the offers side by side and go with whichever saves you the most

  • Confirm the promotion is available for your selected device, plan, or customer type

  • Some Xfinity Mobile offers come with eligibility conditions, like activating a new line or buying a specific device.

Still need a hand? You can reach Xfinity Mobile via call or text at 888-936-4968 or use the Xfinity Assistant to chat with a specialist online.

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You can write a review for your approved transactions.

Earn Cashback!

Sign up and get $10 Cashback

  • To be eligible for cashback, you must begin your purchase with an empty shopping cart.
  • Please accept the store's cookies before checking out and complete the order in a single session without leaving or switching the browser tab to ensure the transaction is tracked.
  • Cashback can only be combined with offers and/or coupon codes published on the Coupons.com website and tagged as "cashback".
  • Cashback is earned on the qualifying purchase total after any discounts and before any fees, taxes, order protection, or shipping and handling are applied.
  • Cashback is not eligible on the purchase of gift cards.
  • Order details will be available in your account within 72 hours of purchase. This is an update to your account information only, separate from when you receive your payment.
  • Cashback will be voided on canceled, returned, and/or partially returned purchases.