Facts about a 401(k):

Do you understand the ins and outs of your plan? Here are some facts you may not know.

1. You can roll it over when you leave.

2. Automated portfolios work.

3. Stable value funds are a good choice.

4. Age 55 is special.

5. You have creditor protection.

6. Designated Roth accounts are great.

7. Company stock may have special tax treatment.