T-Mobile is migrating customers off decade-old plans whether they like it or not.
The carrier confirmed it will automatically shift subscribers on legacy plans - including Simple Choice, T-Mobile One, and grandfathered Sprint plans dating back to the 2020 merger - to its current Essentials, Experience More, or Experience Beyond tiers. Notifications are going out via text and the T-Life app starting today, with the switch landing within the next few billing cycles. Both individual customers and some small businesses are affected. Internally, T-Mobile describes the move as a systems cleanup that eliminates over 1,100 legacy billing codes.
The notable part is not that old plans are going away - that is industry standard. It is that customers get no choice in the matter. There is no opt-out, no grandfathering extension, and no path to stay put; the only options are to pick a different T-Mobile plan or leave the carrier. Chief marketing officer Allan Samson told CNET that migrated customers will typically pay less than a new customer on the same plan today, which is a narrow comfort if you were paying even less yesterday.
AT&T added fees to legacy plans in May and T-Mobile raised prices across the board in March 2025, so this is less a surprise than an industry pattern - carriers have decided the era of honoring old rate commitments is over, and customers who stayed loyal for a decade are finding out that loyalty runs one direction.