How can I access retirement-account money before age 59½ without paying the 10% penalty?

Several legal exceptions let you tap retirement funds early without the 10% penalty. The two FIRE workhorses are the Roth conversion ladder (converting traditional dollars to Roth, then withdrawing them tax- and penalty-free after a five-year wait) and Rule 72(t) substantially equal periodic payments (SEPP) from an IRA. You can also withdraw your direct Roth IRA contributions anytime tax- and penalty-free, and the rule of 55 lets you take penalty-free 401(k) withdrawals if you leave your employer in or after the year you turn 55. Each path has tradeoffs: ladders need a five-year runway, 72(t) locks you into a fixed schedule for years, and the rule of 55 only covers the plan at the job you just left. Model your bridge years and drawdown order on wealthserene.com/tools/fire-calculator before you quit.