T-Mobile updated its terms of service for home broadband users to include a new rule. Heavy users who exceed 1.2TB of data in a billing cycle may face slower speeds during high network traffic or congestion.
The Mobile Report noted that this change started on January 18. The carrier’s updated terms explain that such users will be given the lowest priority on the network during congestion, leading to slower speeds until the congestion ends.
T-Mobile limits its home internet to specific locations and designs it for stationary use. This setup reduces network congestion for users compared to mobile devices in crowded places like stadiums.
Is T-Mobile Adding a Data Cap?

T-Mobile avoids using standard data caps that block data after a limit unless users pay extra. It slows down data speeds for heavy home internet users during peak times. High-traffic areas, called “congestion,” trigger these speed reductions.
Once the congestion eases and network usage normalizes, internet speeds for these users should return to regular levels. However, heavy internet users face challenges during these busy periods.
Will T-Mobile Throttle Heavy Data Users?
T-Mobile confirmed to CNET that it does not throttle speeds for users exceeding 1.2TB in a month, except during congested periods.
The company says heavy users may not notice slower speeds unless they are in a crowded area. Only a tiny percentage of home internet users fall into the “heavy user” category. T-Mobile will notify users when they exceed the 1.2TB limit.
T-Mobile has not shared specific speed details for heavy users during congestion but stated that they will be deprioritized compared to other users.
This policy applies only to consumer home internet accounts and does not affect business accounts.
Can You Purchase More High-Speed Data?

T-Mobile does not offer an option to buy additional high-speed data. Users who exceed 1.2TB per month will still have access to fast speeds outside congested times.
However, their speeds may temporarily slow during peak usage compared to other users in the area.
Why Is T-Mobile Doing This?
T-Mobile made the change to improve the network experience for all users. The company explained that most home internet customers use hundreds of gigabytes of data each month.
However, a few users exceed 1.2TB of data in a month. To maintain better service for the majority, T-Mobile lowers the priority of these high-data users during busy network times.
The company manages network traffic to prevent heavy users from disrupting internet quality for others. By doing this, T-Mobile ensures that most customers enjoy reliable and consistent service.
The company prioritizes fair access for everyone and handles congestion more effectively with this approach.
T-Mobile believes this balance allows most users to experience smoother internet service while accommodating high-data users during less congested times.
What Is Network Prioritization?

Network prioritization determines which users get faster access during busy periods. When the network has enough capacity, prioritization has little effect. However, during high-traffic events, users with higher priority receive better service.
T-Mobile prioritizes wireless users within their data limits and premium plans like Go5G Next and Magenta Max, which have no data caps.
Lower-priority users include those on plans like Essentials and Metro and connected devices like tablets and hotspots. Heavy home internet users who exceed their monthly limits are deprioritized further during congestion.