CSG Actuarial has compiled the new business rate increases implemented on Medicare Supplement blocks of business since 2011. As discussed on previous CSG Actuarial blog posts, recent premium rate increases have trended higher throughout 2025 as carriers continue to attempt to catch up premium rate levels to the post-Covid claim utilization rates.
The graph below shows an updated view as of July 2025 of the average Medicare Supplement new business rate increases by effective month for 2024 and 2025. The 2025 average rate increases continue to trend 2-3 points higher by month into the latter portion of the year.
