T-Mobile quotes three lines at once, and adds $35 per line at the door

One T-Mobile line costs $90 a month on Experience More 2.0 and $105 on Experience Beyond 2.0, before the AutoPay discount, taxes and a $4.49 per-line fee. The cheaper Essentials plans are $65, or $55 for Essentials Saver. The $140 and $170 on T-Mobile’s plan cards are three-line totals with AutoPay and a free third line. Its 5-Year Price Guarantee is the strongest argument for staying. I’m not a T-Mobile customer; this is their plan page and Broadband Facts labels, read on September 22, 2026.

How much is one T-Mobile line?

The plan cards quote three-line bundles. The per-line prices are in the Broadband Facts label under each plan on t-mobile.com/cell-phone-plans, which lists them before AutoPay:

The cards show $140 and $170 for three lines. The difference from $185 and $230 is the AutoPay discount plus a free third line, which T-Mobile gives “via mo. bill credits; credits stop if you cancel any lines.” If you want one line, the number that applies is in the first column. AutoPay takes $5 a line off each of these.

What do the cheaper Essentials plans leave out?

Essentials is T-Mobile’s own answer to prepaid pricing; its plan page calls the Essentials line “our lowest price for unlimited talk, text, and data.” There’s also an Essentials 2.0 4 Line Offer at $120 for four lines, which is what a four-line household will see first. The label spells out what the lower price costs you:

• 50 GB of premium data. The label says Essentials customers “may notice speeds lower than other customers,” with a further reduction past 50 GB, because of data prioritization.
• Hotspot at 3G speeds. Unlimited, but slow.
• No data abroad included. T-Mobile’s international roaming page says Essentials plans “get free texting in 215+ countries and destinations,” calls at $0.50 a minute, and data means buying an International Pass.
• No 5-Year Price Guarantee. That’s attached to the Experience 2.0 plans.

So Essentials isn’t the premium T-Mobile line at a discount. It’s a lower-priority line on T-Mobile’s own network, the same trade the prepaid carriers below make, at a higher price than most of them.

What gets added to the price?

To T-Mobile’s credit the page says this right under the price rather than in a footnote:

• taxes and fees
• up to $35 device connection charge per line AutoPay discount using an eligible payment method applied

The label adds one more line: a “Regulatory programs / Telco recovery fee” of $4.49 per line, which T-Mobile says isn’t a government tax. So one Experience More line is $90, less whatever AutoPay takes off, plus $4.49, plus tax, plus $35 once. A three-line household on the card’s $140 pays $13.47 in that fee on top, and up to $105 at activation.

Same pattern as AT&T and Verizon: the advertised figure describes a particular household in a particular month.

Is the 5-Year Price Guarantee worth staying for?

What it covers and excludes, including the $4.49 fee it doesn’t, is on the price guarantee page.

Here’s where I’d push back on my own premise. This whole site exists because carriers sell you a first-year price and then charge you a different one. T-Mobile’s current Experience plans advertise a 5-Year Price Guarantee, and that is a direct answer to the thing I’ve been complaining about on every other page.

The guarantee covers “the price of talk, text, and 5G smartphone data” for at least 5 years while you stay on an Experience 2.0 plan; taxes and fees sit outside it. Within that, a T-Mobile line doesn’t have the cliff that Mint, Visible, US Mobile, Xfinity and Spectrum have. It isn’t the only one on this site (Total Wireless advertises five years for new subscribers too), but it’s the one attached to a postpaid network. You would be paying more per line than most prepaid plans in the calculator, and getting price stability in exchange. That’s a real trade, not a trick, and it’s worth saying on a page whose whole argument runs the other way.

Read what the guarantee covers before leaning on it. In wireless, price guarantees generally apply to the plan’s base rate and not to taxes, fees or add-ons, which is where bills tend to drift anyway.

The included benefits depend on the plan. Experience More includes 60 GB of hotspot, 15 GB of high-speed data in Canada and Mexico, 5 GB in 215+ countries, and Netflix Standard with ads. Experience Beyond raises the travel allowances to 30 GB and 15 GB and adds more, including Hulu and satellite texting. If you’d otherwise pay for the streaming, the per-line premium shrinks. The T-Mobile roaming page has the travel detail.

What’s the cheapest way to keep T-Mobile’s network?

Every plan on T-Mobile’s network, ranked at the price after any intro ends, is on the T-Mobile network page. The short version:

Three carriers run on it:

• Mint Mobile is owned by T-Mobile. Unlimited is $30/mo at the regular twelve-month rate, currently $15/mo as an intro. Note the cliff: that’s a $15/mo jump when the intro term ends. You pay upfront in 3, 6 or 12-month blocks, and taxes are extra.
• Tello is month-to-month with no block to prepay. Unlimited is $25/mo with 50 GB at full speed and 10 GB of hotspot, unused data rolls over, and there’s no intro price to expire. Tello has also run free roaming in Europe as a limited-time offer; the roaming comparison shows whether it’s still on.
• US Mobile on Light Speed is T-Mobile. Unlimited Starter is $270/year at the regular rate, about $22.50/mo with taxes included, and US Mobile’s roaming page lists Light Speed with the most roaming destinations of its three networks, 180+.

The trade is priority on a busy tower: T-Mobile’s own postpaid customers are generally served first, and each of these carriers states its own priority terms per plan.

What should you check before leaving T-Mobile?

• Which plan you’re on. Essentials and Experience are priced and prioritized differently.
• Whether you actually have three lines. If you have one, T-Mobile’s advertised pricing was never aimed at you and the comparison is much less close.
• What the device connection charge comes to across your lines, once.
• Whether you’re mid-way through device financing. That balance follows you out.
• How much of the bundled entertainment you’d otherwise pay for. Experience More includes Netflix Standard with ads and Beyond adds Hulu; that’s worth something if you’d pay for them anyway, but it’s a fraction of the gap between a $90 T-Mobile line and a $25 prepaid one. If you’re on Essentials, the gap is smaller and so is what you’d be giving up.

Then run the numbers in the calculator, and read the Regular column rather than the Intro one.

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Prices, Broadband Facts labels and plan benefits read off t-mobile.com/cell-phone-plans on September 22, 2026. A script checks that page daily and the log records the day anything moves.