Free 3rd Line for New & Existing T-Mobile Customers

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Couple holding T-Mobile phones

Attention T-mobile customers!

It might not be T-Mobile Tuesday but we have an awesome deal for you anyway!

For a limited time, T-Mobile is offering its existing single-line or new customers an additional 3rd line for FREE via bill credits (limit 1 offer per account).

woman using cell phone

Please note that if you are an existing customer, you will need to have qualifying credit and be part of the Essentials, Magenta, or Magenta Plus plan. Credits may take up to two bill cycles and will stop if you cancel any lines. If you are a new customer, you will need to activate two voice lines and the 3rd will be FREE!


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Comments 11

  1. ThriftyChristy

    What if we already have 4 lines, can I get a 5th? 🤣 #lotsofkids

  2. lrferris

    I just added a sixth line for free. Definitely worth a call.

  3. iamkris10

    We just called and the CSR said that even though we have two lines – we couldn’t just add a third for free if we were not adding another line already. If we were adding a third and paying for it, we could get a 4th free. Or if we were just adding the second now (and paying), we could get the 3rd for free, but not just adding a line outright for free. It’s more of a BOGO – it seems.

  4. Estebanhernandez

    Since I have a military plan, I do not qualify.

    • Rebecca

      Thanks for the info, I was curious about that!

    • DANIELLE ECKLEY

      Go into the store and talk to someone. We are on the military plan as well, and we were told to take advantage of it. We went into the store for something else, and when they pulled our account info, they said we qualified for the free line.

  5. lovechain

    I was able to add a 3rd line for free, the rep waive the activation fee i only paid 10 for the sim card.

  6. je

    I was able to add a 3rd line to our 2-line plan via their online chat. Easy-peasy. Only $30 ($10 sim + $20 activation).

  7. MombieZombie

    Anyone know where to get a cheap yet decent phone to use for this free line?

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