T-Mobile Fiber 5 Gig to Lock $90 Rate for 10 Years
The 5 Gig plan becomes available November 3, 2026, with a 10-year price guarantee and a promotional Fiber lineup across select locations.
Updated on Nov. 2, 2026 in Telecommunications
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T-Mobile is launching its Fiber 5 Gig internet plan on November 3, 2026, at $90 per month with AutoPay plus taxes and fees, with a 10-year price guarantee. The plan is announced, not yet available; the company also expanded its Fiber lineup with Fiber 300, Fiber 1 Gig, and Fiber 2 Gig pricing and limited-time offers.
Why it matters
The 10-year price guarantee on a 5 Gig tier is a pricing structure the extraction presents as a direct response to the usual pattern of promotional rates that step up after an introductory period. The expansion across four speed tiers shows the company competing on fixed, predictable monthly cost rather than only on speed.
The figures are company-announced list and promotional prices rather than independently measured performance, so the 5 Gig tier's real-world speeds are not verified in the source. The stated limited-time offers apply only in select locations and must be redeemed within 14 weeks.
The players
T-Mobile
A major U.S. wireless carrier that has expanded into home internet through its Fiber product line and a 5 Gig fixed-speed tier.
The details
Fiber 5 Gig is priced at $90 per month with AutoPay, plus taxes and fees, and includes a 10-year price guarantee that starts at the regular rate from the first day of service. Fiber 1 Gig and Fiber 2 Gig include a mesh Wi-Fi extender, which is a set of networked devices that spread a home's wireless signal to rooms farther from the router, and the Fiber 5 Gig plan includes one for households that need it. Limited-time offers carry bill credits and virtual prepaid cards, which are digital payment balances that customers can spend, and these must be redeemed within 14 weeks.
Timeline
November 3, 2026: Fiber 5 Gig and the expanded Fiber lineup pricing become available, with limited-time offers starting in select locations.
Within 14 weeks: Limited-time bill credits and virtual prepaid card offers must be redeemed.
10 years: Duration of the Fiber 5 Gig price guarantee from sign-up.
The Tech Race
The 5 Gig tier extends T-Mobile Fiber's own ladder of 300 Mbps, 1 Gig, and 2 Gig plans upward, placing the carrier in direct competition with fiber and cable providers on speed-tier pricing. The extraction does not name specific competing plans or rival price points, so the wider competitive comparison cannot be drawn from the source.
Customers in select locations who sign up for Fiber 5 Gig pay $90 per month with AutoPay and keep that rate for 10 years, while the limited-time Fiber 300 and Fiber 1 Gig offers carry $10 and $5 monthly savings with bill credits and virtual prepaid cards that expire 14 weeks after redemption opens. The source does not say whether availability will be nationwide or confined to specific areas beyond select locations.
The takeaway
The 10-year price guarantee on Fiber 5 Gig is the part to watch, since fixed pricing for that length is an unusual commitment in home internet. Readers can verify whether the guarantee holds and whether the limited-time offers reach their area when the November 3, 2026 rollout begins.
What happens next
The Fiber 5 Gig plan and expanded lineup pricing become available on November 3, 2026, and the limited-time offers must be redeemed within 14 weeks of that window.
Further reading
For context on how home broadband is priced and delivered, see Telecommunications coverage.
More information
Check current availability, offer terms, and pricing on the T-Mobile Fiber availability, offer, and pricing details page.
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