Line Discount ID250467 / SP144
Get a discounted voice line when activating 2+ voice lines
Existing customers can activate 2 new lines on an eligible plan and get the 2nd line FREE or for $15 after discount on Go5G Next ($10 after AutoPay).
For new customers, refer to Voice: 3rd Line Discount with New Voice Lines
| Promo period | July 29, 2025 – October 15, 2025 |
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| Requirements | New Account Activation or New Line Activation, Specific Rate Plan |
| Eligible customers | Existing customers only. (New customers: See Line Discount ID250468)
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| Limits | 1 redemption per account |
| Payout | Bill Credit |
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Eligible channels |
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Device purchase |
Not required |
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New line activation |
2 new voice lines required
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Rate Plan |
Specific rate plan required Check the eligibility of the specific plan SOCs at the top of the page. After the promo period ends, TFB customers already enrolled in the promotion may change to select 13+ line plans and keep the free or discounted line credit. Important: Customers on the following plans are not eligible to be enrolled in the promo but can switch to these plans after the promo ends and keep the free or discounted line credit.
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Port-in |
Not required |
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Combinability |
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Not available for |
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Payout |
If the customer changes to an eligible Go5G Next plan during or after the promotion window, the enrolled line will receive $10 credit after AutoPay discount or $15 credit without AutoPay discount.
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Paid lines required |
At least 1 paid voice line required
Exception: Paid lines that qualified customers for the previous promos do not count towards the required paid line counts:
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To keep this free/discounted line credit |
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Your credits should begin within your first bill cycle after activation, but in some cases, it may take up to 2 bill cycles to begin. If you don't see a credit on your first bill, don't worry. You'll see a double credit on your second bill.
You will lose the free or discounted line credits if you cancel ANY voice lines on the account within 1 year of enrollment, including the new free or discounted line. After 1 year, you must keep at least 2 paid voice line along with the new free or discounted voice lines activated under this promo to keep the free/discounted line credits
If you cancel a voice line or change to an ineligible rate plan and lose your free/discounted line credits, you have 90 days to resume the canceled line or switch back to an eligible rate plan. You will not receive any credits that were missed.
T-Mobile for Business: Digital Checkout must be created and accepted within the promo period to qualify.
Customers shouldn't cancel an existing voice line with the intention of replacing it with a newly activated voice line to take advantage of this promo, even if the cancellation happens after the new voice line activation.
Customers should never be told to cancel lines, before or after a promotion, in an effort to qualify or justify a promotion. If a customer does not need additional lines, explore other promotions or discuss device price points. Driving CHURN to close sales is not the right thing to do.
The free/discounted line credit applies to newly activated lines with logic this way:
For more FAQs, see Talking Points: Promotions.
Legal Disclaimer: With monthly bill credits. Plus taxes & fees for some plans (e.g. Essentials, Simple Choice, Experience More, Experience Beyond); monthly Regulatory Programs (RPF) & Telco Recovery Fee (TRF) totaling $3.99 per voice line ($0.50 for RPF & $3.49 for TRF) applies; taxes/fees approx. 4-38% of bill. Limited-time offer; subject to change. For existing accounts (1-10 voice lines for most qualifying plans & 1-3 voice lines for Business Unlimited, Experience Business and Go5G Business customers). Qualifying credit and regular-rate Experience More, Experience Beyond, Go5G, Go5G Plus, Magenta, Magenta Plus, MAX, ONE, Simple Choice, Essentials, Experience Business, Go5G Business, Business Select, Business Advance, Ultimate, Ultimate+, or Essentials plan required. plan required. Go5G Next plans not eligible for free line promotion, but discounted line available for $10/mo. with AutoPay discount via eligible payment method. If you have cancelled lines in past 90 days, you may need to reactivate them first. $35 device connection charge due at sale. Credits may take up to 2 bill cycles; credits will stop if you cancel any lines or change plans. Limit 1/account. May not be combinable with some offers or discounts (e.g. other service discounts, Price Lock); see FAQs at T-Mobile.com/plans.
