When you leave a job, rolling over your old 401(k) feels like the obvious move. But financial advisors say you should pump the brakes and ask three critical questions before making that decision.

First, understand what happens if you stay put. Your old employer's 401(k) plan remains open to you. You keep access to the same investment options, and you avoid the effort of transferring accounts. This matters if your current plan offers low-cost index funds or institutional shares with expense ratios below 0.20 percent. Some employer plans beat what you'd find at a typical brokerage.

Second, evaluate the rollover destination. Moving your 401(k) to an IRA opens doors to thousands of investment choices and potentially lower fees. But IRAs come with different rules. If you take a distribution before age 59.5, you face a 10 percent penalty plus income taxes, with limited exceptions. A 401(k) allows penalty-free withdrawals at 55 if you separate from service. That matters if early retirement is in your plans.

Third, check your plan's loan provisions. Some 401(k)s let you borrow against your balance. IRAs do not. If you think you might need emergency cash, staying in your old 401(k) preserves this option.

A fourth consideration many people overlook involves your income and tax bracket. Rolling a large 401(k) into a backdoor Roth conversion strategy gets complicated. Staying in your former employer's plan keeps pre-tax and post-tax money separated, which simplifies future conversions.

The decision also hinges on your net worth and creditor protection. In many states, 401(k) plans receive stronger bankruptcy protection than IRAs. For high-net-worth individuals or those in risky professions, this protection carries real value.

Before rolling