T-Mobile Fiber: plans, prices and price guarantee (2026)
T-Mobile now sells fiber home internet in some areas, alongside its 5G service. Here's what the plans cost and how they differ.
T-Mobile Fiber is $35/mo for 300 Mbps, $50 for 1 Gig and $70 for 2 Gig with AutoPay, plus taxes and fees, with symmetrical speeds, unlimited data and no annual contract. Unlike T-Mobile 5G Home Internet, standard fiber plans don't carry the 5-year price guarantee.
T-Mobile Fiber plans
The price guarantee question
T-Mobile's price promotions FAQ lists the 5-Year Price Guarantee for 5G Home and Small Business Internet plans (Rely, Amplified, All-In and AWAY), not standard fiber plans. The only fiber exception is the T-Fiber Founders' Club: invited customers in select locations get a 10-Year Price Guarantee on that plan. When T-Mobile launched fiber in June 2025 it advertised a 5-year guarantee, so older articles may still say so. Ask T-Mobile to confirm the terms for your plan before you order.
T-Mobile Fiber vs. T-Mobile 5G Home
Where it's available
T-Mobile Fiber is in select areas, including former Lumos markets, and T-Mobile also owns Metronet through a joint venture. Check your address on T-Mobile's fiber page. Where it isn't available, compare the best fiber providers and 5G home internet.
See our T-Mobile review.
How T-Mobile Fiber compares with other fiber
What's included at install
- A Wi-Fi router, with no monthly equipment fee.
- Installation with no installation fee.
- Unlimited data and no annual contract.
- On 1 Gig and faster: 2 months free and a $100 virtual prepaid card (current promo).
Before you order
- Confirm the price after any promotion in writing.
- Ask whether your address qualifies for the Founders' Club 10-year guarantee.
- Check whether you can bundle with a T-Mobile phone line for a discount.
Questions
Does T-Mobile Fiber have a price lock?
Not on standard plans, according to T-Mobile's price promotions FAQ. The 5-year guarantee applies to its 5G home internet plans. Invited T-Fiber Founders' Club customers get a 10-year guarantee.
How much is T-Mobile Fiber?
$35/mo for 300 Mbps, $50 for 1 Gig and $70 for 2 Gig with AutoPay, plus taxes and fees.
Is T-Mobile Fiber better than T-Mobile 5G Home?
Fiber is faster and steadier, with equal upload and download speeds. 5G Home is available in more places and has a 5-year price guarantee.
Is T-Mobile Fiber cheaper than AT&T Fiber?
At current prices, yes: 300 Mbps is $35 at T-Mobile and $50 at AT&T, and 1 Gig is $50 vs. $70. AT&T's prices are standard rates, while T-Mobile's standard fiber plans don't carry a price guarantee.
- Plan pages and Broadband Facts labels from Metronet, T-Mobile 5G Home, AT&T Fiber, Verizon Fios, checked Oct 2026
Prices and offers change often; confirm at your address before you order. How we research
Jean founded ShopHighSpeed after trying to find one straight answer about business internet in his own town. He has been a Comcast and Verizon Fios customer, and ranks providers on what they actually deliver, not on what they advertise.