Metro by T-Mobile Promo Codes in September 2026

Join Metro and get our 6-Month Unlimited Plan for $120 total (equivalent to $20/mo.) when you pay upfront and bring your phone. Pay $120 today for six months of service (equivalent to $20/month). This offer is for new customers only. You must bring your own eligible, unlocked device; devices purchased at Metro are not eligible for this offer. Device compatibility verified during activation. Limit one multi-month discount per account. Prepaid service fees are not refundable. If you change your plan or device, you will lose this promotional pricing for any remaining months on your plan (you may have a higher monthly payment due). This offer is for six months only. After six months, you may renew on a $40 Period plan to continue enjoying the same benefits or select from other eligible plans. This offer is available for a limited time and subject to change. See Terms & Conditions (including arbitration provision) at MetrobyT-Mobile.com.

The discount applies to eligible Unlimited 5G Home Internet plan enrollments and may require maintaining qualifying service for the full promotional period. New customer, account, or location restrictions may apply. Offer cannot typically be combined with other promotions. Availability may vary by service address and network eligibility. Retailer reserves the right to modify or cancel this offer at any time. All changes are up to Metro by T-Mobile's discretion.

Your phone is $99.99 via instant discount at checkout plus any applicable sales tax and free via $100 virtual prepaid Mastercard after your 3rd month of service. You’ll need to pay for the first month of your plan (eligible plans start at $55 your first month & $50 with AutoPay). After your third month of service with your new line, you’ll need to properly complete a form for your virtual prepaid Mastercard, which you can use online or in stores; no cash access & expires in 6 months. The Mastercard is issued by Sunrise Banks, N.A., Member FDIC, pursuant to license from Mastercard International Inc. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated. This card may be used everywhere Debit Mastercard is accepted. Registration, activation, acceptance, or use of this card constitutes acceptance of the terms and conditions stated in the Prepaid Card Agreement. This promotion is not associated, sponsored, or endorsed by Mastercard or Sunrise Banks N.A. Account must be active and in good standing when card is issued. You can get this deal on up to 2 lines. This offer isn’t available if you have been with Metro in the past 180 days. You’ll need to verify your name & address to get this deal in stores. This is available for a limited time and subject to change.