If you leave your current employer, you have several options for your Betterment 401(k) account. You may be able to leave your account with your former employer’s plan until you reach retirement age. If you have a lower account balance, you may need to decide sooner where you want benefits sent. You also have the opportunity to roll over your benefit to a new employer’s retirement plan or to your own IRA account. You can also opt to cash out all or a portion of your account but should review ...