Xfinity 5 Year Lock Price: Plans, Monthly Cost & Fees

Xfinity's 5-Year Price Guarantee is a promise to hold your base monthly internet rate steady for the length of the term. It is aimed at the common cable problem where an introductory price rises after a short promotional period. The guarantee covers the base rate, not taxes, optional equipment, or other fees.

Prices for Xfinity change frequently and vary by location, and different sources published different figures over recent weeks. This page shows two snapshots rather than a single number. One comes from Allconnect, checked on Oct 14, 2026. The other is a promotional snapshot from HighSpeedInternet.com. They do not match, which is normal when promotions come and go.

This snapshot lists plans with the price guarantee by speed. The 300 Mbps plan starts at $45/mo, the 1 Gig plan is $70/mo, and the fastest tier, which is 1.2 Gig or 2 Gig depending on your area, is $100/mo.

Speeds and tiers differ by market. Some areas have multi-gig service while others top out lower.

A separate report listed lower promotional prices for some tiers, including a 300 Mbps plan at $40/mo and a 500 Mbps plan at $45/mo.

Those figures were tied to a promotion at the time and may not be available now. Promotions can also include conditions such as autopay discounts. Promotions change often, so treat them as examples of how much the advertised price can move, and check xfinity.com at signup for what is offered at your address.

The guarantee locks the monthly base price of the internet plan. It does not lock taxes and fees, and it does not apply to equipment you choose to add. Read the terms for what happens if you change plans, move, or add other services, since those events can affect whether the lock continues.

The monthly bill can differ from the advertised plan price.

Xfinity's page describes a stored bank account autopay and paperless billing requirement for the advertised rate, with an additional $10/mo charge if you do not enroll. Equipment can cost up to $25/mo when it is not included, according to Allconnect. A low-income internet option was listed at $14.95/mo, and eligibility rules apply. Professional installation can cost up to $100, while a self-install kit may be available at no charge.

A long lock helps if you want a predictable bill and plan to stay in the same home. It matters less if you expect to move to an address Xfinity does not serve, or if you think you might switch providers soon. There is generally no annual contract tied to the lock, according to the sources reviewed, but confirm this at signup. Compare the locked price with what you would pay after a typical promotional period elsewhere.

Enter your address on xfinity.com to see the plans and prices offered there. Ask how the price changes with and without autopay, whether equipment is included, and whether the quoted plan includes the price guarantee. Keep a copy of the offer terms. Because the promotions on this page shifted between sources, the checkout screen is the authority for what you will pay.