Comcast to Impose Home Internet <br />Data Cap in Several States Next Year.<br />In 2021, Comcast intends to charge northeastern U.S. customers if they go over 1.2TB of data per month.<br />This data cap is already in effect for customers with non-unlimited plans in other parts of the nation.<br />Starting in January and February, Xfinity customers who aren't on an unlimited plan will be given a "credit" for data usage charges over 1.2TB while they get used to the new limits.<br />In March, exceeding the data cap will cost customers $10 per 50GB of data up to $100.<br />Customers will also receive <br />one "courtesy" credit per year.<br />Though Comcast says 95% of its customers only average about 308GB of data use per month.<br />internet use continues to grow as people work and find entertainment at home amid the pandemic