The draft cut points in your plan preview already told you where the thresholds moved, and we went through that movement measure by measure. The posted rating is a different matter. Once CMS publishes the 2027 Star Ratings in early October, one number starts doing three separate jobs on three different timetables, and two of the three sit outside your quality team's hands entirely.
The rating decides your 2028 quality bonus payment
The naming convention trips up almost everyone new to Stars. The 2027 Star Ratings, published this October, set the quality bonus payment ratings for payment year 2028. Contracts at 4 stars and above qualify for the bonus and contracts below it do not, and the bonus program itself carries no matching penalty for low performers, so the payment consequence sits on one side of a single threshold. Sustained low performance carries separate consequences outside the bonus program, including the low performing icon and the contract termination authority CMS holds for contracts below 3 stars across three consecutive years.
The dollars involved keep the attention warranted, and the direction of travel makes the threshold matter more than it used to. Federal quality bonus spending reached $13.4 billion in 2026, up from $12.7 billion the year before, while the share of Medicare Advantage enrollees in bonus-eligible plans fell to 68 percent from 75 percent, the lowest since 2018. The count of contracts at 4 stars or higher dropped from 261 to 209 over the same period. A larger pool is being divided among fewer contracts, which is a good position to hold and an expensive one to lose. If any of your contracts sit within a tenth of that boundary, the October posting is the moment your 2028 planning assumptions either hold or get rebuilt.
The rating is public the moment it posts
Star Ratings are released on the Medicare Plan Finder tool, so the number is visible next to every competitor in your service area from the moment it publishes rather than at some later date. Annual enrollment then opens October 15, which gives you a short stretch between publication and the point where beneficiaries start shopping in earnest. Your marketing and sales teams are working from creative approved well before the number existed, and a star rating becomes a competitive fact in your market before the campaign has any chance to respond to it.
Plans that handle this well tend to have had the conversation in September rather than October, with the growth team briefed on the plausible range from the preview file and a clear internal decision about whether the rating features in the creative at all. If your rating improves, you have a window to use it. If it slips, your service area, network, and benefit story carry the campaign, and the teams who prepared both versions are the ones moving calmly through the third week of October.
A posted rating is not always the last word
The past year made this point more firmly than any year before it. The Clover ruling in May 2026 sent CMS back to recalculate, the agency then revised 2026 ratings for other contracts on its own, Elevance, SCAN, and Alignment brought suits seeking similar treatment, and CMS has appealed. We covered where each case stands in our rundown of the Star Ratings litigation, and the short version heading into this release is that the methodology questions the courts raised are still open.
None of this argues for treating the October number as provisional, and it does argue for reading your own rating with the measure-level detail in hand rather than the headline alone. Plans that understood exactly which measures drove their score were the ones positioned to act quickly when the methodology came under review, and that detail is equally useful in the ordinary case where nothing gets revisited at all.
The long tail into your 2028 bid
The third timetable is the slowest and the one most often missed in October.
Bids are due to CMS no later than the first Monday in June, so the rating posting this fall is an input to a 2028 bid your actuarial team will not file until June 2027. The quality bonus and the rebate percentage attached to this rating shape what that bid is able to fund, which means an October number quietly sets the outer edge of your 2028 benefit package roughly eight months before anyone writes it down.
That gap is the useful part. A contract reading a disappointing rating in October is not choosing benefits under that constraint the same week, and it has two full quarters to work the assumption through pricing, network, and supplemental design before the bid closes. Contracts treating the October posting as the start of the 2028 bid conversation rather than the end of the 2027 quality one tend to arrive at June with fewer surprises.
The RISE Star Ratings Master Class takes the posted 2027 ratings apart in the Stars Math workshop, the Quality Data Deep Dive, and the Cutpoint Hackathon, with a dedicated look at how the recent lawsuits affect Medicare Advantage plans. It lands in December, between the posting and the bid. Join us December 14-16 at the Fairmont Scottsdale Princess in Scottsdale, Arizona.