MMC Benefits Handbook
How the Account Works
You contribute to your account through payroll deductions on a before-tax basis. You can make a tax-free withdrawal up to the balance available in your account to cover qualified medical expenses.
You may also use your account to pay for non-qualified medical expenses, although withdrawals for such expenses are subject to federal, state, and local taxes, as applicable, and in most cases a penalty tax.
Any unused balance in your account at year-end remains in your account, even if you do not participate in the Marsh & McLennan Companies $1,600 Deductible Plan or $3,200 Deductible Plan next year.