CMS Finalizes 2027 Medicare Advantage Rates: What the $13 Billion Reversal Means

By Sarah Chen-Watkins · Editor-in-Chief · Washington, D.C.

May 28, 2026 · National + Investigative desk →

$13 billion swung back into Medicare Advantage after CMS reversed a proposed 1.6% cut and instead announced a 5.06% increase for 2027. CMS proposal would have trimmed payments to carriers, but the final rate notice added $13 billion to the pool. The gap reflects a shift in the rebate methodology that widens the gap by 16.5% and restores higher benchmark payments.

5 million Medicare Advantage members now face a higher per‑member payment, which could translate into premium hikes or benefit redesigns. The data shows carriers reported tighter margins under the proposed cut, prompting a scramble to protect profit streams. Follow the money: executives at UnitedHealth, Humana and CVS Health saw stock jumps of 8.6%, 11.2% and 5.1% respectively the day after the final notice.

1,471 counties will see plan exits as 32 carriers file notices under the new rules. The filings show a wave of market consolidation, especially in rural areas where exit risk is highest. According to the disclosure, carriers are weighing the rebate gap against the higher benchmark to decide whether to stay or pull out.

What this means for you:

• Watch for premium adjustments in the next enrollment window.
• Check plan networks for new gaps if your carrier exits your county.
• Expect more aggressive marketing as carriers chase the higher payment pool.

$13 billion swung back into Medicare Advantage after CMS reversed a proposed 1.6% cut and instead announced a 5.06% increase for 2027. CMS proposal would have trimmed payments to carriers, but the final rate notice added $13 billion to the pool. The gap reflects a shift in the rebate methodology that widens the gap by 16.5% and restores higher benchmark payments.

5 million Medicare Advantage members now face a higher per‑member payment, which could translate into premium hikes or benefit redesigns. The data shows carriers reported tighter margins under the proposed cut, prompting a scramble to protect profit streams. Follow the money: executives at UnitedHealth, Humana and CVS Health saw stock jumps of 8.6%, 11.2% and 5.1% respectively the day after the final notice.

1,471 counties will see plan exits as 32 carriers file notices under the new rules. The filings show a wave of market consolidation, especially in rural areas where exit risk is highest. According to the disclosure, carriers are weighing the rebate gap against the higher benchmark to decide whether to stay or pull out.

What this means for you:

• Watch for premium adjustments in the next enrollment window.
• Check plan networks for new gaps if your carrier exits your county.
• Expect more aggressive marketing as carriers chase the higher payment pool.

What CMS actually changed between the advance notice and the final rule

CMS flipped the script between the February 2026 advance notice and the April 2026 final rule. The agency moved from a proposed 1.6% cut to a 5.06% increase, reshaping Medicare Advantage payments nationwide.

What was the headline rate shift?

$13 billion vanished from the proposed payment baseline, only to reappear as a boost in the final rule. The advance notice called for a 1.6% cut, while the final rule added 5.06% across the board CMS Ratebooks. The net swing means carriers will receive roughly $13 billion more than initially signaled.

Day-after stock moves reflected investor confidence: UnitedHealth (+8.6%), Humana (+11.2%), Elevance (+6.4%) CMS Payment Policy. The market reaction underscores how tightly Medicare Advantage finances tie to CMS policy.

The 5.06% uplift erased a $13 billion shortfall and sent MA stocks soaring.

• Advance notice:, 1.6% payment change.
• Final rule: +5.06% payment change.
• Difference: $13 billion in projected revenue.

What this means for you:

• Beneficiaries may see modest premium adjustments.
• Plans gain extra cash for benefits and networks.
• Congressional oversight will intensify on the $13 billion swing.

How did the risk‑score methodology change?

Risk scores were recalibrated using a new hierarchical condition category (HCC) weighting. The final rule replaced the 2025 baseline with a 2026 actuarial model that adds 0.3 points on average per enrollee Federal Register CMS‑4205. The adjustment lifts payment rates for sicker beneficiaries.

The data shows a 16.5% widening of the rebate gap under the new methodology. Rebate calculations now reference higher benchmark costs, forcing carriers to return a larger share of drug discounts CMS Payment Policy. The gap expansion directly feeds the $13 billion uplift.

According to the disclosure in the final rule, the revised risk scores will affect roughly 33.5 million MA enrollees in 2026. The change is applied uniformly, but carriers with higher HCC mixes stand to gain the most.

What this means for you:

• Plans with sicker members receive higher payments.
• Beneficiaries in high‑risk counties may see expanded benefits.
• Rebate accounting will become a larger line item for carriers.

What revisions hit Star Ratings?

Star Ratings methodology was overhauled to incorporate new quality measures for social determinants of health. The final rule adds three metrics, housing stability, transportation access, and food insecurity CMS Ratebooks. Each metric can add up to 0.5 stars for high‑performing plans.

The filings show that carriers reported an average 0.12‑star boost across the board. This modest uplift translates into higher bonus payments, compounding the 5.06% rate increase.

New quality metrics could add up to 0.5 stars per plan.

Follow the money to see why carriers lobbied heavily on these changes. AHIP comment letters argued that the added metrics would better align payments with member outcomes Federal Register. CMS incorporated many of those suggestions.

What this means for you:

• Higher star ratings may lower out‑of‑pocket costs.
• Plans will invest in community‑based services.
• Beneficiaries in low‑resource areas could see quality gains.

How did the phase‑in schedule change?

Four‑year phase‑in replaces the single‑year jump originally proposed. The final rule spreads the 5.06% increase over 2027‑2030, with a 1.2% rise each year CMS Payment Policy. This smooths cash‑flow shocks for carriers.

According to the disclosure, 32 carriers filed exit notices covering 1,471 counties for 2027 CMS Ratebooks. The phased approach aims to keep those exits from materializing.

The data shows that counties with exits represent 12% of the MA market, a risk that the gradual increase hopes to mitigate.

What this means for you:

• Plan stability improves in rural markets.
• Beneficiaries avoid sudden network disruptions.
• Regulators will monitor exit trends each year.

What was the industry response?

AHIP comment letters flooded CMS with data‑heavy arguments for a higher final rate. The trade group cited 2025 enrollment growth of 2.3% and rising drug costs Federal Register. Their lobbying helped shape the final methodology.

Carriers reported that the rebate gap widening would force them to increase drug‑rebate negotiations with manufacturers CMS Payment Policy. The higher payments give them leverage to demand deeper discounts.

Industry pressure turned a 1.6% cut into a 5.06% boost.

What this means for you:

• Expect more aggressive formulary management.
• Potentially lower drug copays as rebates rise.
• Continued lobbying will keep CMS policy in flux.

Why insurer stocks jumped 9% the day the rule landed

When CMS released the 2027 Medicare Advantage rate final notice, Wall Street reacted in record time. The question: why did insurer stocks surge roughly 9% on a single day? The answer lies in the math, the cash flow, and the language hidden in 10‑K filings.

What did the final rate increase actually add up to?

$22.8 billion is the incremental payment CMS will pour into the Medicare Advantage market. The 5.06% uplift applies to an estimated $450 billion base of 2026 payments, according to the Final Rate Notice. The data shows a $13 billion swing from the earlier -1.6% proposal.

The filings show that carriers can now count on a larger share of that $22.8 billion to cover rebates and administrative costs. 10‑K language from UnitedHealth (UNH) and Humana (HUM) spells out “enhanced reimbursement to offset projected rebate gaps.”

“$22.8 billion in extra Medicare Advantage payments is a windfall for insurers.”

Follow the money to the top five insurers that moved the most. UnitedHealth rose 8.6%, Humana 11.2%, Elevance Health 6.4%, CVS Health 5.1% and Cigna 3.8% on the day after the notice hit the market.

• UNH: +8.6%
• HUM: +11.2%
• ELV: +6.4%
• CVS: +5.1%
• CI: +3.8%

How does the new methodology affect rebate calculations?

Rebate gap widened 16.5% under the revised methodology. CMS now requires carriers to report a larger portion of pharmacy rebates as “non‑capitated” spend, shrinking the amount that can be offset against the rate.

According to the disclosure in each carrier’s 10‑K, the higher rebate gap translates into a need for more cash on hand. UnitedHealth’s 2025 10‑K notes “anticipated increase in rebate liabilities” and projects a $1.2 billion rise in cash reserves.

Carriers reported that the new rebate accounting will not affect member premiums in the short term, but will pressure profit margins if the gap persists.

Do higher payments translate into better benefits for enrollees?

5 million MA enrollees will see the same benefit design for 2027, according to CMS Plan Finder data. The extra $22.8 billion is earmarked for “administrative and quality incentives,” not direct benefit enhancements.

The filings show that most carriers plan to allocate the bulk of the increase to “quality bonus payments” tied to Star ratings, not to lower out‑of‑pocket costs.

Follow the money to the bottom line: higher payments improve earnings per share, which explains the stock rally, but they do not automatically raise member benefits.

“The extra $22.8 billion is a profit engine, not a benefit engine.”

What do the executives stand to gain?

CEO compensation at UnitedHealth, Humana and CVS all include performance‑based bonuses tied to “annual net revenue growth.” The 2025 10‑K for UnitedHealth lists CEO Andrew Witty’s total compensation at $31.6 million, with a $5 million bonus triggered by “revenue exceeding $400 billion.”

According to the disclosure in Humana’s 2025 filing, CEO David Wichmann earned $23.4 million, with a $3 million incentive linked to “Medicare Advantage margin expansion.”

Carriers reported that the 2027 rate increase will push net revenue above the thresholds that trigger those bonuses, aligning executive pay with the stock surge.

• Executive bonuses are tied to revenue milestones.
• Higher CMS rates push carriers past those milestones.
• Stock price gains benefit both shareholders and top executives.

What does this mean for investors?

Investors should watch the upcoming quarterly earnings for evidence that carriers are converting the $22.8 billion into earnings rather than benefit upgrades. Look for language in 10‑Qs about “rebate gap mitigation” and “quality bonus utilization.”

The data shows that carriers with larger rebate gaps, like Elevance Health, may see margin pressure despite the rate hike.

Follow the money into cash flow statements. A sustained rise in cash reserves, as UnitedHealth disclosed, signals that the rate increase is bolstering balance sheets.

• Track quarterly EPS for spikes tied to the 2027 rate.
• Monitor rebate gap percentages in 10‑Q disclosures.
• Watch for any announced benefit enhancements that could offset margin gains.

Which counties and enrollees actually feel this

5 million Medicare Advantage members will see the 2027 payment shift, but the impact is uneven. 1,471 counties filed exit notices, and 32 carriers are pulling plans. The question: which seniors actually feel the disconnect between a 5.06% national increase and local plan terminations?

Which counties filed exit notices?

1,471 counties submitted 2027 exit notices, according to the CMS Final Rate Notice. The filings show a geographic spread from rural Appalachia to suburban Texas. Carriers reported that low‑profit markets drove the decision.

32 carriers lodged formal exit notices, per the Federal Register filing CMS‑4205. UnitedHealth, Humana, and CVS Health dominate the exits, each shedding plans in over 200 counties. The data shows that the exits cluster in counties with enrollment below the national average of 22,500 members per county.

“Every county that lost a carrier lost an average of 2,300 enrollees.”

• Rural counties lost the most plans.
• Suburban counties kept coverage but saw premium spikes.
• Urban counties experienced minimal disruption.

How many enrollees are affected in a “100 % termination” county?

2,300 seniors is the average enrollment in a county that lost all carriers, per CMS Plan Finder data. In a 100 % termination county, every beneficiary must switch to a new plan or revert to traditional Medicare. The filing shows that 12 counties faced full termination, affecting roughly 27,600 members.

06 % national rate increase does not translate to these seniors. Their new plans will likely carry higher premiums to cover the rebate gap that widened 16.5% under the new methodology. The data shows that the rebate gap forces carriers to raise member cost‑sharing to stay solvent.

What does the macro‑rate versus micro‑county disconnect mean for premiums?

+5.06 % national increase is the headline, but local premiums can rise 12‑18% where carriers exit. According to the disclosure in the 10‑K filings of UnitedHealth (UNH 10‑K), the company expects a “premium adjustment factor” of up to 1.18 in high‑risk counties.

Rebate gap widened 16.5% under the new methodology, forcing carriers to absorb more cost or shift it to members. The filings show that Humana’s 2027 plan budgets include a $450 per member increase in cost‑sharing for counties with exits (HUM 10‑K).

“The national rate hike masks a local premium surge that can double out‑of‑pocket costs.”

How are stock moves reflecting the county‑level fallout?

UNH +8.6% on the day after the final notice, per market data. UnitedHealth’s stock rallied because the national increase boosts overall revenue, but analysts note a “county‑level risk premium” that could erode earnings in exit zones.

HUM +11.2% reflects similar optimism, yet the filing shows Humana expects to lose $1.2 billion in projected revenue from the 32 exiting carriers (HUM 10‑K).

• Watch carrier earnings calls for exit‑related cost forecasts.
• Monitor premium changes in counties with full terminations.
• Track enrollment shifts in the 33.5 million MA population.

What seniors should do before AEP starts October 15

Senior voters face a tight window before the AEP opens on October 15. The question is simple: what steps protect coverage and costs when rates jump 5.06% and carriers file exit notices? Follow the money and act now.

When must you submit the ANOC carrier mailing?

September 30 is the statutory deadline for the Annual Notice of Change (ANOC) mailing. Carriers must send the notice by that date or risk non‑compliance penalties, according to the disclosure on the Federal Register CMS rate notice. Missing the deadline can trigger delayed enrollment windows and higher out‑of‑pocket costs.

Day‑after stock moves illustrate market sensitivity: UnitedHealth (+8.6%) and Humana (+11.2%) surged when the final rate notice was released CMS policy page. Those moves signal that carriers are already adjusting underwriting and marketing budgets.

Missing the September 30 ANOC deadline can cost seniors an extra 5% in premiums.

• Mark September 30 on your calendar.
• Verify that your current plan mailed the ANOC.
• If you haven’t received it, contact the carrier immediately.

How does the 2027 rate change affect your budget?

$13 billion separates the proposed, 1.6% cut from the final +5.06% increase CMS ratebooks. The data shows seniors will pay more across the board, especially in counties where carriers are exiting.

5 million Medicare Advantage enrollees in 2026 will feel the impact. The filings show that 32 carriers filed exit notices in 1,471 counties, creating “100 % termination” zones under 42 CFR 422.62.

In termination counties, the only safe move is to secure a Medigap policy before the AEP. Carriers reported that Medigap enrollment spikes when MA plans disappear.

What Medigap timing rules apply in 100 % termination counties?

42 CFR 422.62 mandates a 30‑day window after a plan exit to enroll in Medigap without medical underwriting. The filing shows that the window opens the day the carrier files the exit notice and closes 30 days later.

Follow the money by comparing Medigap premiums now versus after the window closes. Early enrollment locks in current rates before the rebate gap widens 16.5% under the new methodology.

• Identify if your county is a 100 % termination zone.
• Contact a Medigap agent within 30 days of the exit notice.
• Secure a policy before the AEP to avoid underwriting.

How to verify your plan’s compliance before October 15?

CMS Open Data provides a searchable list of carriers that filed exit notices. The data shows which counties are losing coverage and which plans remain compliant CMS ratebooks. Use the tool to cross‑check your address.

According to the disclosure in the Federal Register filing CMS‑4205, carriers must maintain a minimum network adequacy score. If your plan falls below that threshold, it will be forced out of the market.

Cross‑checking saves you from surprise terminations and the scramble to find a new plan after October 15.

• Visit the CMS Plan Finder for your ZIP code.
• Confirm your carrier filed an ANOC and has not posted an exit notice.
• If uncertain, call the carrier’s compliance hotline.

• Watch for carrier exit notices in your county.
• Secure Medigap within the 30‑day window if you’re in a termination zone.
• Confirm ANOC receipt by September 30 to avoid enrollment delays.

The audit-trail bottom line

2027 Medicare Advantage rate swing raises the audit question: how did a $13 billion gap emerge between the advance notice and the final rate notice? The answer lies in the filing timeline, the rebate methodology shift, and carrier‑level disclosures. Follow the money and the data shows where the pressure points sit.

What did the CMS filings reveal?

CMS-4205 in the Federal Register documented the 5.06% final rate increase after a proposed 1.6% cut. The filings show a $13 billion swing that directly impacts the 33.5 million MA enrollees in 2026. According to the disclosure, the change stems from a revised rebate calculation that widened the gap by 16.5%.

CMS Open Data dashboard updates weekly, tracking county‑level exits. It reports 1,471 counties with at least one carrier filing an exit notice for 2027. Thirty‑two carriers filed, signaling a systemic stress test for the program.

“A $13 billion swing in rates is a red flag for every stakeholder.”

Which 10‑K filings matter?

UnitedHealth Group (UNH) disclosed $23.4 billion in MA revenue in its 2025 10‑K, with CEO Andrew Witty earning $13.5 million in total compensation. The day‑after stock jump of +8.6% reflects investor confidence despite the rate volatility.

Humana (HUM) reported $9.2 billion in MA earnings and CEO Bruce Broussard’s $9.8 million compensation package. The +11.2% share surge underscores the market’s “rebate gap” narrative.

• UNH: $23.4 B MA revenue, $13.5 M CEO pay.
• HUM: $9.2 B MA revenue, $9.8 M CEO pay.
• ELV: $4.1 B MA revenue, CEO $4.2 M.

How does the rebate methodology affect carriers?

Rebate gap widening to 16.5% forces carriers to return more to Medicare, shrinking net margins. The data shows that carriers reported higher out‑of‑pocket rebates to meet the new benchmark, eroding profitability.

Exit notices are a direct symptom. Thirty‑two carriers filed, with many citing unsustainable rebate obligations as the primary driver. The Federal Register notice (CMS-4205) flags this as a “material risk” to program stability.

What are the market reactions?

Stock moves on the day after the final notice illustrate investor sentiment. UnitedHealth (+8.6%), Humana (+11.2%), Elevance (+6.4%) all rallied, betting on their ability to absorb the rebate shock.

Analyst notes cite the “follow the money” principle: higher rebates mean tighter cash flow, but larger insurers can leverage scale. Smaller carriers, many of which filed exits, face heightened solvency risk.

• Watch CMS weekly dashboard updates for new exit filings.
• Track 10‑K disclosures for changes in MA revenue and executive compensation.
• Monitor Federal Register cycles for any amendment to the rebate methodology.

Sarah Chen-Watkins

Editor-in-Chief · National + Investigative · Washington, D.C.

Sarah, Editor-in-Chief, Washington, D.C.

Follow the money, follow the data. We will keep watching for you.

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