What is the Federal tax treatment of employer contributions to an HSA?
Employer contributions to an employee’s HSA are excludable from the employee’s gross income, up to the maximum contribution limit for that employee. Although the employee cannot deduct the employer’s HSA contributions, the contributions are not taxable to the employee nor are they subject to withholding from wages for income tax or other employment taxes. HSA contributions by employers are considered a type of benefit, and are therefore, tax-deductible for the employer.