Aren’t premiums in the employer insurance market going to go up? Historically, premiums have gone up rapidly. The Affordable Care Act helps change that by working to control costs. Starting September 1, 2011, in every State and for the first time ever, insurance companies are required to publicly justify their actions if they want to raise rates by 10 percent or more. Health policy experts and economists who have looked at the health care law have said that it pursues the full range of tools to reduce health care costs. And a family of four would save as much as.