T-Mobile Additional Line Cost: What You Need to Know

Editorial Team Apr 14, 2026

If you're considering adding an additional line to your T-Mobile plan, you're likely wondering how much it will cost. The good news is that T-Mobile offers a range of pricing plans and promotions that can help you save money. In this article, we'll break down the cost of an additional line at T-Mobile, including the different pricing plans and any potential discounts or promotions you can take advantage of.

To get started, let's take a look at the different pricing plans offered by T-Mobile.

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T-Mobile Magenta Plans: Pricing and Features

T-Mobile's Magenta plans are some of the most popular options for individuals and families. These plans offer a range of features, including unlimited talk, text, and data, as well as international coverage and streaming perks. The cost of an additional line on a Magenta plan will depend on the specific plan you choose and the number of lines you need. Here's a breakdown of the different Magenta plans and their pricing:

* Magenta: $60 per month for one line, $40 per month for each additional line
* Magenta Plus: $70 per month for one line, $50 per month for each additional line
* Magenta Plus International: $85 per month for one line, $65 per month for each additional line

As you can see, the cost of an additional line on a Magenta plan will depend on the specific plan you choose. However, in general, you can expect to pay around $40-$65 per month for each additional line, depending on the plan and features you need.

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AT&T Versus T-Mobile: The Battle of Wireless Services - Guardian ... Source: guardianlv.com

T-Mobile Essentials Plans: Pricing and Features

T-Mobile's Essentials plans are a more affordable option for individuals and families who don't need all the features and perks of the Magenta plans. These plans offer unlimited talk and text, as well as 3GB of high-speed data per line. The cost of an additional line on an Essentials plan is $30 per month, which is significantly cheaper than the Magenta plans. However, keep in mind that these plans do not include international coverage or streaming perks, and the data speeds may be slower than on the Magenta plans.

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T-Mobile Four Unlimited Lines For $100 Per Month: What You Need To Know Source: screenrant.com

T-Mobile Senior Plans: Pricing and Features

T-Mobile offers a range of plans specifically designed for seniors, including the Magenta Senior plan and the Essentials Senior plan. These plans offer a range of features, including unlimited talk and text, as well as data and international coverage. The cost of an additional line on a senior plan will depend on the specific plan you choose and the number of lines you need. Here's a breakdown of the different senior plans and their pricing:

* Magenta Senior: $60 per month for one line, $40 per month for each additional line
* Essentials Senior: $30 per month for one line, $20 per month for each additional line

As you can see, the cost of an additional line on a senior plan will depend on the specific plan you choose. However, in general, you can expect to pay around $40-$60 per month for each additional line, depending on the plan and features you need.

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T-Mobile Promotions and Discounts

T-Mobile often offers promotions and discounts on its plans, including discounts for students, military personnel, and first responders. These promotions can help you save money on your phone bill and make your additional line even more affordable. Some examples of T-Mobile promotions and discounts include:

* Student Discount: 20% off all plans for students with a valid.edu email address
* Military Discount: 25% off all plans for active military personnel and veterans
* First Responder Discount: 20% off all plans for first responders and their families

To take advantage of these promotions and discounts, you'll need to sign up for a T-Mobile plan and provide proof of eligibility.

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Is T-Mobile Magenta Max Worth It? Why It Is (And Isn't) Source: screenrant.com

The cost of an additional line at T-Mobile will depend on the specific plan you choose and the number of lines you need. However, in general, you can expect to pay around $40-$65 per month for each additional line, depending on the plan and features you need. Be sure to take advantage of any promotions or discounts that may be available to you, and don't hesitate to reach out to T-Mobile customer service if you have any questions or need further assistance.

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