A $500,000 401(k) balance can look like a giant neon sign announcing, “Retirement is going to be fine!” Then taxes walk into the room and quietly pull up a chair. If that $500,000 sits in a traditional 401(k), the account balance does not represent $500,000 of spendable money because most withdrawals generally count as ordinary taxable income.
That does not mean the IRS gets to swipe a quarter-million dollars just because the account crossed a nice round number. The actual tax bill depends on how much comes out, what other income arrives that year, the account’s tax treatment, filing status, deductions and other factors. The big takeaway matters more than any single estimate: a $500,000 401(k) balance and $500,000 in your bank account are two very different things.
