Can an employer contribute different amounts to different employees?

Yes, within limits. Employers can vary contributions by legitimate employment-based classes (such as full-time vs. part-time or job category) but not in ways that discriminate in favor of highly compensated employees or owners. Section 125 and Section 105(h) nondiscrimination rules apply.

How do employer HSA contributions fit into a benefits strategy?

Employers often “seed” HSAs to make high-deductible plans more attractive and to reward enrollment. Employer HSA contributions are tax-free to the employee and count toward the annual HSA limit ($4,400 self-only / $8,750 family for 2026), and they must satisfy either Section 125 testing or the separate HSA “comparability” rules.