Behind the numbers 2027

Medical cost trend is expected to hit 9%, highest in 17 years. Can cost management strategies bend the trend?

Healh behind the numbers
  • Report
  • 10 minute read
  • June 11, 2026

Health plans are projecting the highest medical cost trend in nearly two decades, with commercial healthcare cost trend expected to rise to 9% in 2027. The increase reflects the convergence of several powerful forces reshaping the healthcare landscape. These inflators include provider adoption of AI-enabled revenue optimization tools, growing provider reimbursement pressure, rising pharmacy spending, sustained growth in behavioral health utilization, and escalating out-of-network payment disputes under the No Surprises Act.  Without macro health cost deflators, payers and employers face mounting pressure to act. 

 

The challenge now is not simply understanding what is driving healthcare costs higher, but whether health plans can deploy cost-of-care strategies quickly and effectively enough to slow the trajectory before affordability, coverage, and access come under greater strain across the healthcare system.

70%

of health plans rank AI-enabled tools that capture more provider revenue as a top-three inflator.

7.59%

Hospital and related services inflation spiked in early 2026 to post-pandemic highs, reaching 7.59% year over year in February.

3.5M

GLP-1 prescriptions filled in December 2025, nearly twice the number filled in December 2024.

62.6%

rise in utilization of behavioral health services claims between 2018 and 2024.

88%

of disputes under No Surprises Act won by providers for payer reimbursement.

Key cost takeaways

Health plans expect the cost of treating patients to climb in 2027 as five inflators increase medical cost trend to 9%: 

  1. AI-enabled tools help providers capture more revenue.

  2. Inflation and provider consolidation drive up reimbursement rates. 

  3. Pharmacy costs continue to increase. 

  4. Behavioral health utilization keeps growing as mental health claims rise.

  5. The No Surprises Act arbitration process adds a new source of out-of-network reimbursement. 

Together, these dynamics signal the urgency to find counterbalances to medical cost inflators in a healthcare system under constant affordability pressure.

 

Note: Inflators are ranked based on PwC’s synthesis of health plan survey and interview responses, ordered by the greatest expected upward variance from historical medical cost trend.

For the fifth year, health plan actuaries we surveyed anticipate medical cost trends for the Group and Individual markets to remain elevated. Based on their input and our analysis, the Group medical cost trend is projected to be 9% in 2027. The Individual market trend is projected to be 8.5%. The study also supports a restatement of the Group and Individual trends up for 2026 from 8.5% and 7.5% to 9.0% and 8.5%, respectively. 

This trend is without the impact of expiration of enhanced subsidies in the ACA Individual market

Many of the forces driving the trend, including pharmaceutical innovation, expanded behavioral health access, and improved clinical documentation, can improve patient outcomes. The challenge for healthcare leaders is establishing that spending growth is matched by measurable value and affordability. 

With medical cost trend nearing double digits, payers face the big squeeze.

Historical cost trend deflators—biosimilars, generic drugs, and site-of-care optimization—continue to play a role, but health plans are already incorporating those into their baseline cost assumptions. The external deflators are not enough to materially impact the rising cost trend.

The 2027 deflators come down to what payers can directly control, such as benefit design, formulary design, cost of care initiatives, and network choices where they exist.

Health plan claims and payment integrity, along with utilization management, can deliver near-term savings by reducing spending on services delivered outside the plan’s contracted network or care setting. Meanwhile, Rx management should prioritize governance of high-cost drug classes and medical-benefit therapies within the next plan year. 

Over the longer term, network design and reimbursement remain the most critical levers for resetting the cost baseline. Quality and care management, in turn, can achieve the greatest impact when focused on areas where intervention impacts utilization, outcomes, or adherence. 

For self-funded employers, this same framework holds. Large employers can drive greater discipline by linking vendor oversight, carrier performance, and benefit strategy directly to claims experience, trend reduction, and total cost of care.

Inflators Five inflators drive commercial medical cost trend for 2027

AI-powered tools for providers

As providers seek accurate reimbursement for appropriate care from payers, they’re using AI-enabled documentation and coding tools that enable them to record greater specificity and reimbursable severity. As a result, payers see higher paid amounts per claim. Cost management success depends on pairing disciplined contracting with advanced capabilities in coding-intensity surveillance, severity-shift monitoring, and payment integrity to distinguish changes rooted in documentation from shifts in patient complexity.

Self-funded employers should partner closely with administrative vendors to implement strong monitoring and payment integrity measures that can help control spending and provide more accuracy. 

Elevated provider reimbursement pressure

Provider reimbursement pressure is fueled by fundamental underlying inflationary forces that are amplified by provider market consolidation that weakens payer negotiating leverage. Higher hospital and care costs, concentrated provider markets, and provider-led revenue optimization contribute to higher reimbursement expectations across the healthcare system.  

For health plans, maintaining rate assumptions demands disciplined contracting paired with enhanced visibility into contract performance and targeted safeguards against reimbursement drift after agreements are in place. 

Large self-funded employers should control not only negotiated rates but also the realized yield over time.

Rising pharmacy trend

Pharmacy costs continue to outpace overall medical trend. Pharmaceutical innovation continues to improve outcomes for many patients, driven by advances in specialty drugs and expanding GLP-1 indications, but the rapid adoption of high-cost therapies is contributing to healthcare spending growth. 

Health plan management of pharmacy trend will require more than traditional formulary controls as more high-cost therapies enter categories with limited substitutes and broader eligible populations, and considerations for revisiting preventive health programs that could stem the growth of annuity drugs. Growing uncertainty around PBM transformation, transparency, and pricing reform adds another layer of complexity. 

Self-funded employers face higher budget pressure and more difficult tradeoffs around benefit design, coverage strategy, PBM contracting, and workforce affordability.

Behavioral health demand

Behavioral health continues to outpace broader medical trend, with utilization increasing 10% from 2023 to 2024, and surging 62% since 2018. Unlike other inflators, growth is being driven by sustained utilization rather than unit cost and rising intensity. Behavioral health access and effective management can influence medical trend and affordability.  

Implications for self-funded employers extend beyond claims to absence, productivity, disability, and overall workforce health. Employers should evaluate behavioral health vendors on their ability to improve access, redirect care to more efficient settings, and produce a measurable impact on total cost of care. 

Provider reimbursement arbitration through Independent Dispute Resolution 

The No Surprises Act's Independent Dispute Resolution (IDR) arbitration process has become a reimbursement inflator, with providers winning 88% of disputes with payers in 2.6 million cases filed in 2025. 

Payers can respond by pursuing more direct control over out-of-network expenditures through refined reimbursement policies, targeted contracting provisions, and network strategies designed to reduce dependence on nonparticipating providers. 

Similarly, self-funded employers face heightened claim volatility, increased stop-loss risk, and less predictable out-of-network costs. Effectively managing exposure requires vigilant monitoring of dispute trends and service-category concentration, stronger documentation of qualifying payment amounts, and more robust eligibility-stage defenses throughout the IDR process.

One critical deflator

Rising trend is triggering fast, targeted payer cost-of-care response 

The window for payers to get ahead of cost inflators is narrowing. Health plans should prioritize five cost-of-care actions now. 

Start with payment integrity. As AI-enabled documentation and coding tools become more widespread, health plans are seeing higher paid amounts per claim and greater variation in coding intensity. Payers should respond by assessing high-dollar claims before payment is made, tracking provider-level severity drift, and integrating contract terms, payment policy, and claims edits into a single accuracy engine. The goal should be more accurate payments, not more denials of claims.   

Manage utilization in a more targeted way and not simply restrictive way. Retire low-yield prior authorization requirements, reward high-performing providers, and concentrate clinical review on the services where cost and variation are highest.  

Focus on critical Pharmacy management. GLP-1s, specialty drugs, and medical-benefit therapies are contributing to pharmacy trend. Plans need class-specific governance, disciplined GLP-1 access policies by indication, accelerated biosimilar conversion for real savings, and tighter alignment between pharmacy, utilization management, and site-of-care programs. 

Use network and reimbursement strategy. Plans should use price transparency along with their own claims experience to identify high-cost outliers, reset value-based contracts around specific cost drivers, and direct members to lower-cost sites of care. 

Make care management more disciplined and event-driven. Plans should set explicit trend-deflation targets by lever, hold vendors to outcomes that matter, and stop funding programs that cannot demonstrate avoided utilization or measurable savings.  

Health plans that do not move quickly may find costs compounding faster than their ability to respond. 

What does medical cost trend mean?

Medical cost trend is defined as the projected percentage increase in the cost to treat patients from one year to the next, assuming benefits remain the same. This report estimates the projected increase in per capita costs of medical services and prescription medications that affect insurers’ Group and Individual plans. Insurance companies use the cost trend projection to calculate health plan premiums for the coming year. For example, a 5% trend means that a plan that costs $10,000 per member this year would cost $10,500 next year.  

PwC health researchers surveyed and interviewed actuaries at 27 US health plans to produce our estimate of medical cost trend for 2027. These plans cover more than 103 million employer-sponsored members and 8 million Individual Affordable Care Act (ACA) marketplace members. This report does not focus on trends in Medicare and Medicaid. 

Behind the numbers full report

Read more on medical cost trend inflators and deflators and what you can do about them. 

Download the report

Past reports: 2026, 2025, 2024

Contact us

Glenn Hunzinger

Health Industries Leader, PwC US

Thom Bales

Principal, US Health Services Sector Lead, PwC US

Derek Skoog, FSA, MAAA

Principal, Health Actuarial, PwC US

Julian Levin, FSA, MAAA

Principal, PwC US

Phil Sclafani

Principal, Pharmaceutical and Life Sciences Commercial Advisory, PwC US

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