The comparison is staggering—major corporations like Starbucks and General Motors spend more on health insurance than they do on their most essential raw materials, coffee beans and steel. This become less surprising once you consider that employers, on average, pay for 80% of their employees’ premiums—a cost which is growing at nearly double the rate of inflation. Clearly, employers are facing an urgent need to reduce their healthcare spending.
From traditional fee-for-service (FFS) to point-of-service (POS) plans, health insurance models in the U.S. have evolved, and new products continue to emerge with hopes of curbing annual healthcare expenditure growth to match the rate of inflation.
A common strategy for employers to combat rising costs—while also providing employees with the benefit of consumer choice—has been the shift toward offering high-deductible health plans (HDHPs) with a savings option (SO).
For 2025, the Internal Revenue Service (IRS) defines an HDHP as any plan with an annual deductible of at least $1,650 for an individual or $3,300 for a family. These plans aim to incentivize thoughtful consumption of health services by shifting first dollar health expenses from payer to consumer. By enrolling in these plans, individuals are expected to pay the full allowed cost (i.e., billed charges minus any insurer discounts) for most medical and pharmacy services, up to the plan deductible.
To lighten the out-of-pocket burden that HDHPs place on their enrollees, health policymakers introduced tax-advantaged savings tools, namely Health Reimbursement Accounts (HRAs) and Health Savings Accounts (HSAs). This article will focus on HSAs, which are more prevalent and widely favored over HRAs due to their contribution structure and portability.
Built to accompany HDHPs, HSAs were made a permanent feature of the U.S. tax code in 2003 via the Medicare Modernization Act (MMA). HSAs allow individuals or families to save pretax dollars for future medical expenses. These accounts differ from HRAs in that deposits can be made by employers and employees up to the annual contribution limit—set as $4,300 for individuals and $8,550 for families in 2025. This joint contribution structure gives enrollees more ownership over their savings. Unlike HRAs or other traditional healthcare savings accounts, unused funds in an HSA never expire and can rollover to new employers.
If individuals choose to deposit through an employer’s payroll process, their contributions are deductible from payroll and personal income taxes. Once placed in an HSA, funds can be invested and withdrawn on a tax-free basis, so long as the income earned is used for covered medical services. If distributions are used for non-qualified expenses, they face a regular income tax and an additional 20% penalty.
HDHPs, paired with an HSA, are designed to encourage individuals to take greater responsibility in controlling their healthcare costs, while providing a tax-advantaged solution to cover high out-of-pocket expenses. In theory, having “skin in the game” leads to individuals becoming more price-conscious and selective in the care they seek.
Examples of expected consumer behavior include selecting more appropriate treatment venues, choosing generic over brand-name prescription drugs, seeking care from higher-quality providers, and avoiding unnecessary care altogether.
These cost-conscious decisions benefit both consumers and payers, as reflected by analyses of these plans that highlight lower premiums and reduced overall spending. One such analysis, from Kaiser Family Foundation’s 2024 Employee Health Benefits Survey, revealed a notable gap in average annual premiums between HDHPs with HSAs and non-HDHP/SO plans. The average annual premiums for HSA-qualified HDHPs were $7,982 for individuals and $23,436 for families, both significantly lower than their non-HDHP/SO counterparts. Even after accounting for employer HSA contributions, HDHPs with HSAs remain more cost-effective for employers than traditional health insurance models.