A growing body of analysis is showing that 2019 will be a particularly bad year for exchange premiums.
In a new report, America's Health Insurance Plans (AHIP) said many Republican policies will lead to double-digit exchange premiums next year.
Specifically, the elimination of the individual mandate alone will increase premiums by up to 10%, and planned expansions of associated and short-term plans by as much as 4% and 1.7%, respectively.
"While health insurance providers are committed to ensuring consumers have access to affordable coverage options, a number of factors will continue to place upward pressure on premiums for the 2019 plan year ... which could further destabilize risk pools and increase premiums," the group said.
However, AHIP did project that the one-year delay of the health insurer tax next year will reduce premiums by about 3%. Bipartisan lawmakers are already trying to delay the tax until 2021.
Meanwhile, some insurers have already requested exchange premium increases of up to 91% for next year.