Employer Health Costs 2027: The Steepest Rise in 17 Years

Health plan actuaries project a 9% medical cost trend for 2027 — the steepest rise in roughly 17 years. Here's what's driving it, and what benefits leaders are doing besides shifting costs onto employees.

How much will employer health costs rise in 2027? Health plan actuaries project a 9% medical cost trend for the group market in 2027 — the highest in roughly 17 years, according to PwC's Behind the Numbers report, based on a survey of 27 US health plans covering more than 103 million employer-sponsored members. It lands on top of a 2026 in which employer costs already rose a net 6.7% to more than $18,500 per employee — the largest jump in 15 years (Mercer). This report explains what is driving the spike, how employers are responding, and why prevention and navigation — not just cost-shifting — are becoming the strategic answer.

The short version

• 2027 is projected to be the steepest cost year in nearly two decades. PwC pegs the group medical cost trend at 9% (individual market: 8.5%), the highest since roughly 2010, and the fifth consecutive year of elevated trend (PwC).

• It compounds an already-record 2026. Costs rose 6.7% in 2026 to over $18,500 per employee, the biggest increase in 15 years, after a 6.0% rise in 2025 (Mercer).

• Pharmacy is outpacing everything. More than 85% of surveyed plans report a 2027 pharmacy trend running above overall medical trend, with GLP-1 medications a named driver (PwC).

• A new driver has entered the list: provider AI. 70% of health plans rank provider adoption of AI-enabled revenue optimization tools as a top-three cost driver for 2027 (Fierce Healthcare).

• The default employer response is cost-shifting. Two-thirds of large employers expect to raise employees' paycheck premium contributions in 2027, and about 48% plan changes such as higher deductibles and copays (Healthcare Dive).

• The counter-strategy is prevention plus navigation — steering spend toward earlier, higher-value care rather than simply moving the bill onto employees. The ROI evidence is promising but largely vendor- and carrier-reported; we grade it honestly below.

How much will employer health costs rise in 2027?

The two most-cited projections agree on direction and roughly on magnitude, but they measure different things — worth keeping precise in your planning deck.

PwC (health plan actuaries): a 9% group medical cost trend for 2027, the highest in about 17 years. The estimate comes from surveys and interviews with actuaries at 27 US health plans covering 103 million employer-sponsored members and 8 million ACA marketplace members, fielded April–May 2026 (PwC). Trend here means the projected growth in per-capita cost of medical services and prescriptions before plan-design changes.

Mercer (employers): 2026 total health benefit cost per employee rose a net 6.7% — the highest in 15 years — to more than $18,500, and employers entered 2027 planning expecting continued elevated growth (Mercer). Mercer's number is net — after the plan-design and cost-shifting changes employers make — which is why it runs below raw trend.

The Business Group on Health's 2026 Employer Health Care Strategy Survey (121 large employers covering 11.6 million lives) similarly projected roughly 9% cost growth for 2026 before plan changes — meaning underlying trend has been running near 9% for two cycles, and 2027 is when plan actuaries expect it to fully land.

The practical read: if you make no plan changes, expect something near the 9% figure. Aggressive management typically pulls realized increases down 2–3 points — historically achieved mostly by shifting costs to employees.

What is driving the 2027 spike?

Pharmacy spend, led by GLP-1s

More than 85% of plans surveyed by PwC report a 2027 pharmacy cost trend running above overall medical trend (PwC). Prescription drug spend among large employers rose about 9.4% in 2025 (Mercer), with GLP-1 medications the single most-discussed line item. For the full picture of what GLP-1 coverage costs and how employers are managing it, see our guide to GLP-1 employer coverage and cost.

Provider adoption of AI revenue tools

The newest entry on the driver list: 70% of health plans rank provider adoption of AI-enabled revenue optimization tools as a top-three cost driver (Fierce Healthcare). Plans report that AI-assisted coding and billing tools are increasing the intensity and volume of claims — an arms race in which payers are deploying their own AI in response.

Provider reimbursement pressure and utilization

PwC also cites growing provider reimbursement pressure, sustained growth in behavioral health utilization, and escalating out-of-network payment disputes under the No Surprises Act (PwC). None of these are one-year anomalies; all are structural.

How are employers responding?

The default: cost-shifting

Mercer's survey work shows two-thirds of large companies expect to raise employees' monthly premium contributions in 2027, and about 48% plan additional changes — higher deductibles, higher copays — that increase employees' out-of-pocket costs (Healthcare Dive; Claims Journal). After several years of employers absorbing increases to stay competitive on talent, the affordability dam is breaking.

Cost-shifting works arithmetically and fails strategically. It reduces the employer's line item without reducing the cost of care — and there is consistent evidence that higher cost-sharing causes employees to defer both low-value and high-value care, including the preventive visits and early treatment that keep small problems from becoming large claims.

The counter-strategy: prevention and navigation

The alternative playbook spends smarter rather than shifting more, and it has two connected parts.

Prevention as cost strategy. UnitedHealthcare's employer research argues preventive care programs deliver a 3.6x return on investment, with engaged employees generating an average of $359 per year in combined healthcare and productivity savings (UnitedHealthcare). Grade this honestly: UHC is an interested party — a carrier marketing its own programs — and the figure is carrier-reported, not independently audited. The direction, however, is consistent with the broader logic of early detection: identifying elevated risk before it becomes an expensive claim is the only lever that reduces the underlying cost of care rather than reallocating it.

Navigation as the engagement engine. Prevention only saves money if employees actually use it, and engagement is the historical failure point. Navigation vendors report that 87% of employees engage in preventive care when supported by navigation, versus a 76% national average, alongside first-year claims-savings claims in the mid-single digits (Quantum Health). These are vendor-reported figures from companies selling navigation — treat them as directional, demand client-specific validation in any procurement. For a full evaluation framework, including what the independent evidence does and does not support, see our employer guide to care navigation as a benefit.

The connective logic is stronger than any single vendor stat: in a 9%-trend year, every misdirected claim — the ER visit that should have been urgent care, the late-stage diagnosis that screening would have caught, the employee who never finds the right specialist — costs more than it did last year. Steering matters more when the meter runs faster. The same logic is pushing employers toward remote patient monitoring for chronic-condition populations, where earlier signal is the whole value proposition.

What employees will feel — and what to do about it

If your 2027 design includes higher contributions or deductibles, pair it with tools that help employees spend well: transparent provider search, coverage-aware guidance (our consumer explainer on finding a doctor who takes your insurance shows what employees are up against), and navigation support that reaches people before they make expensive decisions. Cost-shifting without decision support is how employers end up paying twice — once in deferred-care claims, once in attrition.

A planning checklist for benefits leaders

1. Model at 9% before plan changes, and pressure-test the gap between raw trend and your target net increase. Be explicit about how much of the gap is cost-shifting versus cost reduction.

2. Isolate pharmacy. With drug trend outpacing medical, a combined number hides the problem. Scrutinize GLP-1 utilization management, PBM contract terms, and rebate reliance separately.

3. Ask your carrier about AI-driven claims intensity. If 70% of plans call provider AI a top-three driver, your renewal conversation should include what your plan is doing about coding intensity — and what that means for your experience rating.

4. Fund engagement, not just programs. A preventive benefit no one uses is pure cost. Whatever prevention stack you offer, budget for the navigation layer that drives usage — and demand engagement and steerage metrics, not just program lists.

5. Demand client-specific evidence for ROI claims. Carrier and vendor ROI figures (3.6x, 87% engagement) are directional marketing numbers until proven in your population. Ask for book-of-business methodology and guarantee structures.

FAQ

How much will employer health insurance costs increase in 2027?
Health plan actuaries surveyed by PwC project a 9% medical cost trend for the group market in 2027 — the highest in roughly 17 years. Employers' realized net increases typically run lower after plan-design changes; 2026's net increase was 6.7% per Mercer.

Why are employer health costs rising so fast?
The main drivers named by health plans: pharmacy spending growing faster than medical spending (led by GLP-1 medications), provider adoption of AI-enabled billing and revenue tools, provider reimbursement pressure, rising behavioral health utilization, and out-of-network payment disputes.

What is the average employer cost per employee for health benefits?
Mercer reports employers expected to pay more than $18,500 per employee for health benefits in 2026, after a 6.7% increase — the largest in 15 years.

Will employees pay more for health insurance in 2027?
Very likely. Two-thirds of large employers surveyed by Mercer expect to raise employees' paycheck premium contributions in 2027, and about 48% plan changes like higher deductibles and copays.

Does preventive care actually reduce employer healthcare costs?
Carrier-reported analyses (e.g., UnitedHealthcare's 3.6x ROI figure) suggest yes, but these come from interested parties and independent evidence is more mixed and slower-moving. The strongest case is directional: earlier detection and appropriate steering reduce the share of spend that reaches high-cost settings. Demand population-specific validation.

What is care navigation and why are employers buying it?
Care navigation is a service that helps employees find the right provider, understand coverage, and reach appropriate care sooner. Employers are adopting it as an alternative to pure cost-shifting because it targets the cost of care itself; vendor-reported results include higher preventive engagement and single-digit claims savings, which should be validated per client.

Key takeaways

• PwC projects a 9% group medical cost trend for 2027, the steepest in about 17 years; Mercer's 2026 net increase of 6.7% (>$18,500/employee) was already a 15-year high.

• Pharmacy (GLP-1-led) and provider AI billing tools are the defining new drivers; behavioral health utilization and reimbursement pressure are structural.

• Most employers will cost-shift in 2027 — but cost-shifting alone defers care and doesn't touch underlying trend.

• Prevention plus navigation is the strategic counter-move; the ROI evidence is directionally positive but largely vendor-reported, so procure with validation requirements.

• In a high-trend year, every misdirected claim costs more — steering and early detection compound in value exactly when trend spikes.

Facing a 9% renewal? Manifold helps employers turn prevention and navigation into a measurable cost strategy — connecting employees to the right care before small risks become large claims. Talk to us about navigation as a benefit.

References

• PwC Health Research Institute — Medical cost trend 2027: Behind the Numbers (June 2026)

• Mercer — Employers and workers face affordability crunch as health insurance cost is expected to exceed $18,500 per employee in 2026

• Mercer — Employers prepare for the highest health benefit cost increase in 15 years

• Healthcare Dive — Employers plan to shift more health costs to employees

• Claims Journal — US workers' health insurance costs set to rise, survey finds

• Fierce Healthcare — Healthcare costs projected to jump 9% in 2027: PwC

• Business Group on Health — 2026 Employer Health Care Strategy Survey press release

• UnitedHealthcare — 5 reasons employers should care about prevention in 2026 (carrier-reported)

• Quantum Health — How healthcare navigation reduces employer costs (vendor-reported)

This article is business and benefits-strategy education for employers and benefits professionals. It is not medical, legal, or actuarial advice. Cost projections are projections — actual results vary by population, geography, and plan design.