## The 1.2 TB Cap is Real — and Growing
Xfinity customers in most US markets have a 1.2 TB monthly data cap. In 2026, with 4K streaming and remote work, families of 4 can hit this limit easily.
## Your Options
### Option 1: Unlimited Data Add-on ($30/month)
Xfinity quietly charges $30/month to remove the cap. It's buried in account settings. Not advertised on the sales page.
### Option 2: Switch to a Business Plan
Xfinity Business plans don't have data caps. The cheapest tier is $50/month and includes unlimited data. Worth considering if you work from home.
### Option 3: Monitor and Reduce
Install the Xfinity app and check "Data Usage" weekly. Netflix and YouTube's auto-quality can chew through 50+ GB per day at 4K. Lower default streaming quality in the account settings.
## The Truth About Overage Charges
After your first two months of exceeding the cap, Xfinity starts charging $10 per 50 GB overage, up to $100/month. Your bill can quietly double if you're not watching it.