Community Rating

Community rating is the ACA rule that prevents health insurance companies from charging people different premiums based on their health status, medical history, gender, or claims history. Instead, premiums are set for the entire community (geographic area), and only a limited set of factors can affect what you pay.

Under the ACA's modified community rating rules, insurers can only vary premiums based on four factors: your age (older adults can be charged up to 3x more than younger adults), your geographic location (rating area), whether you use tobacco (up to a 50% surcharge), and the plan category you choose (Bronze through Platinum).

Everything else is off-limits. Your insurer cannot charge you more because you have diabetes, are overweight, take expensive medications, have a family history of cancer, or have filed large claims in the past. This was one of the most significant consumer protections in the ACA, replacing a pre-ACA system where people with health issues were routinely priced out of individual coverage.

Community rating means that a healthy 40-year-old and a 40-year-old managing multiple chronic conditions pay the same premium for the same plan in the same area. The pool of insured people shares risk; healthier members subsidize sicker members through the premium structure, and everyone benefits from the security of knowing their rate won't spike if they get sick.

Some states go even further with "pure" community rating, where even age cannot be used to vary premiums (New York, for example). Most states follow the ACA's modified approach.