Most plans have a minimum loan amount – typically $500 to $1,000. The maximum amount you can borrow is generally governed by federal law and is limited to (1) $10,000 or 50% of your vested account balance, whichever is greater or (2) $50,000, whichever is less. Keep in mind that the amount you can borrow from your 401(k) plan is determined based on your vested balance. Your contributions into the plan are always fully vested, but employer contributions may be subject to a vesting schedule. Your employer may require you to work a certain amount of time before you keep any employer contributions.