Employers can contribute to the Health Savings Accounts (HSA) but aren't required to do so.
If your employer-sponsored health plan has high deductible (at least $1,000 for individual and $2,000 for family), you may sign up for a HSA.
HSA is a relatively new health coverage option. It is not a health insurance plan, but a special tax-sheltered savings account, combined with a high-deductible health plan you can use to pay for qualifying medical expenses.
You may incur penalties (about 10%) when you withdraw funds from the account for any purpose other than qualifying medical expenses.