FIRE 財務自由計算機：提早退休規劃
還要工作幾年？根據「4% 法則」計算您的財務自由數字 (FIRE Number) 與退休時間表。
通往財務獨立之路
逐年追蹤資產增長，邁向財務獨立目標。
| 時間軸 | 預估淨資產 | 完成度 | 距目標差距 |
|---|---|---|---|
| 1 第 0 年 | $50,000 | 5.0% | ✅ 已達成 |
| 2 第 1 年 | $78,400 | 7.8% | ✅ 已達成 |
| 3 第 2 年 | $108,852 | 10.9% | ✅ 已達成 |
| 4 第 3 年 | $141,506 | 14.2% | ✅ 已達成 |
| 5 第 4 年 | $176,521 | 17.7% | ✅ 已達成 |
| 6 第 5 年 | $214,067 | 21.4% | ✅ 已達成 |
| 7 第 6 年 | $254,327 | 25.4% | ✅ 已達成 |
| 8 第 7 年 | $297,498 | 29.7% | ✅ 已達成 |
| 9 第 8 年 | $343,789 | 34.4% | ✅ 已達成 |
| 10 第 9 年 | $393,427 | 39.3% | ✅ 已達成 |
| 11 第 10 年 | $446,653 | 44.7% | ✅ 已達成 |
| 12 第 11 年 | $503,726 | 50.4% | ✅ 已達成 |
| 13 第 12 年 | $564,926 | 56.5% | ✅ 已達成 |
| 14 第 13 年 | $630,550 | 63.1% | ✅ 已達成 |
| 15 第 14 年 | $700,917 | 70.1% | ✅ 已達成 |
| 16 第 15 年 | $776,372 | 77.6% | ✅ 已達成 |
| 17 第 16 年 | $857,281 | 85.7% | ✅ 已達成 |
| 18 第 17 年 | $944,039 | 94.4% | ✅ 已達成 |
| 19 第 18 年 | $1,005,335 | 100.0% | ✅ 已達成 |
什麼是 FIRE 運動？
Financial Independence, Retire Early (財務自由，提早退休)。核心概念是：當你的資產產生的被動收入 > 生活支出，你就不需要為了錢工作。📉 4% 法則 (The 4% Rule)
根據歷史數據，如果你每年從投資組合中提領 4% 當作生活費，而且資產配置得當 (股票/債券)，你的錢有極高機率永遠花不完。 * 公式: 年支出 x 25 = 財務自由數字。 * 範例: 一年花 60 萬 -> 你需要 1500 萬的投資資產 (股票/ETF)。決定退休時間的唯一關鍵：儲蓄率
賺多少不是重點，存多少才是。 * 存 10%: 要工作 51 年。 * 存 50%: 只要工作 17 年。 * 存 70%: 只要工作 8.5 年 就能退休！常見問題
Q: 4% 安全嗎？ A:** 4% 是基於美國歷史數據。考慮到壽命延長與未來低報酬風險，保守者建議採用 **3.5% (年支出 x 28.5)** 或 **3% (年支出 x 33)。Q: 錢要放哪裡？ A:** 不是放定存！FIRE 需要靠資產增值對抗通膨。通常建議投資 **大盤指數 ETF (0050, VOO, VT)，長期年化報酬率約 7-10%。
常見問題 (FAQ)
Q: What is the FIRE number and how do I calculate it?
A: Your FIRE Number is the investment portfolio size at which you can retire. It's calculated as: Annual Expenses × 25 (using the 4% safe withdrawal rate). If you spend $50,000/year, your FIRE Number is $1,250,000. The 4% rule means you can withdraw 4% of your portfolio ($50,000) in the first year of retirement, then adjust for inflation annually, with approximately 90–95% probability of not running out over 30 years. For longer retirements (50+ years), many use 3.5% (multiply expenses by 28.5).
Q: Is the 4% rule safe for early retirement?
A: The original Trinity Study assumed 30-year retirements. For early retirees who might need portfolios lasting 50+ years, the 4% rule has lower historical success rates (~80–85% over 50 years). Many early retirees use 3.5% (25× expenses + 10% buffer) for more safety. Additional safeguards include flexible spending (reducing withdrawals in down markets), maintaining some part-time income, and accounting for Social Security in projections for retirement at 40–50+.
Q: How long will it take me to reach FIRE?
A: Your timeline depends almost entirely on your savings rate—not your income. At a 50% savings rate, FIRE takes approximately 17 years from a zero starting balance (assuming 7% real return). At 70%, it takes about 8.5 years. Your current portfolio acts as a head start. Use this calculator with your current net worth and monthly savings to see your personalized timeline based on your actual numbers.
Q: Where should I invest my FIRE portfolio?
A: Most FIRE practitioners invest primarily in low-cost total market index funds. Common choices: Vanguard's VTSAX or VTI (US total market), VXUS (international stocks), and BND (bonds). The most popular allocation is roughly 80–90% stocks / 10–20% bonds during accumulation, shifting more conservative as you approach FIRE. Low expense ratios (under 0.1%) are critical—a 1% expense ratio difference on a $1M portfolio costs $10,000/year and compounds dramatically over decades.
Q: How do I access retirement accounts before age 59½ without penalties?
A: Several strategies allow penalty-free early access: (1) Roth Conversion Ladder—convert Traditional IRA to Roth annually, then withdraw penalty-free after 5 years; (2) 72(t) SEPP—take substantially equal periodic payments calculated by IRS formulas; (3) Roth IRA contributions (not earnings) can always be withdrawn tax-and-penalty-free; (4) Build a taxable brokerage account to bridge from early retirement to 59½. Many early retirees use all four strategies in combination.
Official Sources & Authority References
重要免責聲明
本計算機提供之結果僅供參考，不構成稅務、法律或財務建議。稅法每年調整，請於申報前到 IRS.gov 核實數據，或談詢具資格的稅務專業人員。
