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【退休計算】40 歲工程師想 55 歲退休:每月要存多少?用數據算給你看

[Retirement Planning] 40-Year-Old Engineer Wants to Retire at 55: How Much to Save Monthly?

你是不是也遇到這些狀況?

❌ 理專說:「退休金至少要 3000 萬!」
❌ 保險業務說:「不買年金險,老了會很慘!」
❌ 你心想:「我到底要存多少才夠?好焦慮...」

問題是:他們都只講「對自己有利的部分」

💡 GoalApp 的做法:不猜測,只計算

我們不推薦任何投資產品,只給你真實的數字。今天用 3 個實際案例,算給你看:

  • 案例 1: 40 歲工程師 Alex,想 55 歲退休
  • 案例 2: 30 歲護理師 Amy,想 50 歲退休
  • 案例 3: 50 歲主管 David,想 60 歲退休

看看他們的計畫可不可行,以及如何調整。

📊 實際案例 1:40 歲工程師 Alex

背景資料

Alex 是一名軟體工程師,月薪 12 萬,已婚有一個小孩。

退休目標:

目前財務狀況:

計算結果

項目 金額
15 年後總資產 1,582 萬
以 4% 法則計算,每月可提領 5.3 萬
退休後每月需求 6 萬
缺口 -7,000 元/月

🔍 真相:以目前規劃,無法達成目標

問題在哪?

💰 調整方案(只算數字,不推薦產品)

方案 A:提高月存金額

  • 每月投入:5 萬 → 6 萬
  • 15 年後總資產:1,582 萬 → 1,898 萬
  • 每月可提領:5.3 萬 → 6.3 萬
  • 結論:可達成,但每月要多存 1 萬

方案 B:延後退休

  • 退休年齡:55 歲 → 58 歲(延後 3 年)
  • 總資產:1,582 萬 → 2,054 萬
  • 每月可提領:5.3 萬 → 6.8 萬
  • 結論:可達成,且更有餘裕

方案 C:降低退休後支出

  • 退休後每月需求:6 萬 → 5.5 萬
  • 15 年後總資產:1,582 萬(不變)
  • 每月可提領:5.3 萬(不變)
  • 結論:仍有缺口,需搭配其他方案

方案 D:提高投資報酬率

  • 預期報酬率:7% → 8%
  • 15 年後總資產:1,582 萬 → 1,756 萬
  • 每月可提領:5.3 萬 → 5.9 萬 ⚠️
  • 結論:仍有小缺口,且高報酬 = 高風險

Alex 的最終選擇:方案 A + 方案 B 的組合

  • 每月多存 5,000 元(從 5 萬提高到 5.5 萬)
  • 延後退休 2 年(從 55 歲延到 57 歲)
  • 結果:17 年後總資產 2,145 萬,每月可提領 7.2 萬

📊 實際案例 2:30 歲護理師 Amy

背景資料

Amy 是一名護理師,月薪 5.5 萬,單身。

退休目標:

目前財務狀況:

計算結果

項目 金額
20 年後總資產 1,022 萬
以 4% 法則計算,每月可提領 3.4 萬
退休後每月需求 4 萬
缺口 -6,000 元/月

🔍 真相:50 歲退休太早,資產不夠

問題在哪?

💰 調整方案

方案 A:延後退休到 55 歲

  • 累積時間:20 年 → 25 年
  • 總資產:1,022 萬 → 1,545 萬
  • 每月可提領:3.4 萬 → 5.2 萬
  • 結論:可達成,且有餘裕

方案 B:提高月存金額到 2.5 萬

  • 每月投入:2 萬 → 2.5 萬
  • 20 年後總資產:1,022 萬 → 1,278 萬
  • 每月可提領:3.4 萬 → 4.3 萬
  • 結論:可達成,但要犧牲生活品質

方案 C:退休後找兼職工作

  • 20 年後總資產:1,022 萬(不變)
  • 退休後兼職收入:每月 1 萬
  • 總收入:3.4 萬(提領)+ 1 萬(兼職)= 4.4 萬 ✅
  • 結論:可達成,且保持社交活動

Amy 的最終選擇:方案 A(延後到 55 歲)

  • 理由:25 年累積時間更充足
  • 50 歲還很年輕,繼續工作 5 年壓力不大
  • 55 歲退休後每月可領 5.2 萬,生活更從容

📊 實際案例 3:50 歲主管 David

背景資料

David 是一名企業主管,月薪 20 萬,已婚,小孩已經獨立。

退休目標:

目前財務狀況:

計算結果

項目 金額
10 年後總資產 2,754 萬
以 4% 法則計算,每月可提領 9.2 萬
退休後每月需求 8 萬
結餘 +1.2 萬/月

🔍 真相:恭喜!你的退休計畫是可行的

David 處於安全區:

💰 進階建議(不是推銷,是風險提醒)

David 現在要注意的是「資產保全」,而非「衝高報酬」

風險 1:市場崩盤

  • 如果退休前 2 年遇到金融危機(如 2008)
  • 資產可能從 2,754 萬縮水到 2,000 萬以下
  • 建議: 退休前 3 年逐步降低股票比例

風險 2:通膨侵蝕購買力

  • 目前 8 萬/月的生活費
  • 10 年後可能需要 10 萬/月(假設通膨 2.5%)
  • 建議: 退休後仍需保留部分成長型資產

風險 3:長壽風險

  • 如果活到 90 歲,退休金要用 30 年
  • 4% 法則假設資產剛好用完
  • 建議: 保留緊急預備金,不要全部投入

David 的最終選擇:維持原計畫,但調整資產配置

  • 前 7 年:維持 5% 報酬率(股 6 / 債 4)
  • 後 3 年:降低到 3% 報酬率(股 3 / 債 7)
  • 退休時:總資產約 2,600 萬(略低於原估,但更穩健)

🧮 自己算算看:你的退休計畫可行嗎?

別信理專的話,也別信我的話。自己算最準。

立即免費試算(30 秒)→

✅ 不需註冊 ✅ 完全免費 ✅ 無業務騷擾

💰 如果試算後發現缺口,怎麼辦?

不要慌。我們不推薦任何投資產品,但可以給你 3 個方向思考:

方向 1:增加投入金額

檢視支出:有沒有可以省下的錢?

增加收入:兼職、斜槓可行嗎?

案例參考:

方向 2:調整預期報酬率

7% 太保守?可以提高風險承受度

5% 比較穩健?接受延後退休

⚠️ 重要提醒:

  • 高報酬 = 高風險,可能虧損
  • 不要為了提早退休而冒險
  • 穩健增長比暴富更實際

方向 3:重新定義退休

全退休 vs 半退休

案例參考:

延後 3-5 年退休,壓力降低很多

😱 退休規劃的隱藏風險:你可能沒想到的事

風險 1:通膨侵蝕購買力

今天的 100 萬,20 年後只剩 60 萬購買力

年份 通膨率 購買力
今天 - 100 萬
10 年後 2% 82 萬
20 年後 2% 67 萬
30 年後 2% 55 萬

應對方式:

風險 2:長壽風險

活太久,錢不夠用

4% 法則的假設:

風險 3:醫療費用暴增

退休後最大的支出:醫療

實際案例(來自 PTT):

「我爸 70 歲中風,住院 3 個月花了 80 萬
還好有保險,不然退休金瞬間歸零」

建議:

風險 4:退休前遇到市場崩盤

最可怕的情況:退休前 2 年遇到金融危機

案例:2008 金融海嘯

應對方式:

🛠️ GoalApp 完整決策工具包

退休不是您唯一的財務決策。在您準備退休前,建議搭配以下工具:

📊 定期定額計算器

計算定期定額投資的 IRR 報酬率

開始試算 →

💸 定期提領計算器

模擬投資本金每月提領的現金流

開始試算 →

💰 房貸套利分析

計算「提前還房貸 vs 投資」的機會成本

開始試算 →

🏘️ 房產出租投資分析

計算租金收益、房價增值、IRR 投資報酬率

開始試算 →

💳 分期 vs 現金決策

比較「0 利率分期」vs「現金折扣」的真實成本

開始試算 →

❓ 退休規劃常見 Q&A

Q1: 退休金到底要準備多少才夠?

A: 沒有標準答案,要看你的生活方式

簡單估算公式:

退休金 = 每月生活費 × 12 × 25

案例:

為什麼是 25 倍?

Q2: 勞保、勞退可以領多少?

A: 勞保 + 勞退,平均每月約 2-3 萬

勞保老年年金(平均):

勞退(平均):

總計:約 2.8 萬/月

⚠️ 重要:

  • 勞保可能破產,未來可能減少給付
  • 不要完全依賴勞保勞退
  • 自己準備的退休金才是重點

Q3: 通膨怎麼算進退休計畫?

A: 用「實質購買力」計算

案例:

應對方式:

  1. 退休金目標要算入通膨
  2. 退休後保留部分股票對抗通膨
  3. 定期檢視提領金額是否夠用

Q4: 4% 法則是什麼?真的可行嗎?

A: 每年提領退休金的 4%,理論上可以用一輩子

原理:

實際案例:

⚠️ 限制:

  • 假設每年穩定報酬(實際會波動)
  • 假設壽命不超過 85 歲
  • 遇到金融危機可能失效

建議:

Q5: 退休後醫療費用怎麼估?

A: 建議預留 50-100 萬緊急醫療金

台灣健保制度下,自付額不高,但要注意:

住院自付費用:

建議:

  1. 檢視現有保險(實支實付、長照險)
  2. 預留醫療緊急預備金 50-100 萬
  3. 不要把退休金全部投入,保留現金

🎯 最後的建議

不要問「我需要多少退休金?」

要問「我的退休計畫可行嗎?」

每個人的情況不同:

沒有絕對的答案,只有最適合你的答案。

📌 行動步驟

  1. 算出自己的數字GoalApp 退休計算器
  2. 檢視缺口 → 能否達成退休目標?
  3. 調整計畫 → 多存 / 延後退休 / 降低支出
  4. 定期檢視 → 每年重新試算一次
  5. 做出決定 → 用數據,不用猜測

💡 為什麼用 GoalApp?

我們的承諾:

  • 不收費 - 完全免費,無隱藏成本
  • 不推銷 - 不會推薦你任何投資產品或保險
  • 不留資料 - 不需註冊,不會打電話騷擾你
  • 100% 客觀 - 只給數字,決策權在你手上

記住:不猜測,只計算。

準備好做出明智決策了嗎?

立即開始試算 →

🔗 延伸閱讀

想了解更多財務決策技巧?

Sound Familiar?

❌ Financial advisor says: "You need at least NT$30 million for retirement!"
❌ Insurance salesperson says: "Without annuity insurance, you'll suffer in old age!"
❌ You think: "How much do I really need to save? So anxious..."

The Problem: They Only Tell You What Benefits Them

💡 GoalApp's Approach: No Guessing, Just Calculating

We don't recommend any investment products. We only give you real numbers. Today, we'll show you with 3 real cases:

  • Case 1: 40-year-old engineer Alex wants to retire at 55
  • Case 2: 30-year-old nurse Amy wants to retire at 50
  • Case 3: 50-year-old manager David wants to retire at 60

Let's see if their plans are feasible and how to adjust them.

📊 Case Study 1: 40-Year-Old Engineer Alex

Background

Alex is a software engineer earning NT$120,000/month, married with one child.

Retirement Goals:

Current Financial Status:

Calculation Results

Item Amount
Total assets after 15 years NT$15.82 million
Monthly withdrawal (4% rule) NT$53,000
Monthly needs after retirement NT$60,000
Shortfall -NT$7,000/month

🔍 Reality: Current Plan Cannot Achieve the Goal

What's the problem?

💰 Adjustment Options (Numbers Only, No Product Recommendations)

Option A: Increase Monthly Savings

  • Monthly investment: NT$50,000 → NT$60,000
  • Total assets after 15 years: NT$15.82M → NT$18.98M
  • Monthly withdrawal: NT$53,000 → NT$63,000
  • Conclusion: Achievable, but requires saving NT$10,000 more monthly

Option B: Delay Retirement

  • Retirement age: 55 → 58 (delay 3 years)
  • Total assets: NT$15.82M → NT$20.54M
  • Monthly withdrawal: NT$53,000 → NT$68,000
  • Conclusion: Achievable with more buffer

Option C: Reduce Post-Retirement Expenses

  • Monthly needs: NT$60,000 → NT$55,000
  • Total assets after 15 years: NT$15.82M (unchanged)
  • Monthly withdrawal: NT$53,000 (unchanged)
  • Conclusion: Still a gap, needs to combine with other options

Option D: Increase Investment Return Rate

  • Expected return: 7% → 8%
  • Total assets after 15 years: NT$15.82M → NT$17.56M
  • Monthly withdrawal: NT$53,000 → NT$59,000 ⚠️
  • Conclusion: Still a small gap, and higher returns = higher risk

Alex's Final Choice: Combination of Options A + B

  • Save NT$5,000 more monthly (from NT$50,000 to NT$55,000)
  • Delay retirement by 2 years (from 55 to 57)
  • Result: After 17 years, total assets NT$21.45M, monthly withdrawal NT$72,000

📊 Case Study 2: 30-Year-Old Nurse Amy

Background

Amy is a nurse earning NT$55,000/month, single.

Retirement Goals:

Current Financial Status:

Calculation Results

Item Amount
Total assets after 20 years NT$10.22 million
Monthly withdrawal (4% rule) NT$34,000
Monthly needs after retirement NT$40,000
Shortfall -NT$6,000/month

🔍 Reality: Retiring at 50 is Too Early, Insufficient Assets

What's the problem?

💰 Adjustment Options

Option A: Delay Retirement to 55

  • Accumulation time: 20 years → 25 years
  • Total assets: NT$10.22M → NT$15.45M
  • Monthly withdrawal: NT$34,000 → NT$52,000
  • Conclusion: Achievable with buffer

Option B: Increase Monthly Savings to NT$25,000

  • Monthly investment: NT$20,000 → NT$25,000
  • Total assets after 20 years: NT$10.22M → NT$12.78M
  • Monthly withdrawal: NT$34,000 → NT$43,000
  • Conclusion: Achievable, but requires sacrificing lifestyle quality

Option C: Part-Time Work After Retirement

  • Total assets after 20 years: NT$10.22M (unchanged)
  • Part-time income after retirement: NT$10,000/month
  • Total income: NT$34,000 (withdrawal) + NT$10,000 (part-time) = NT$44,000 ✅
  • Conclusion: Achievable while maintaining social activity

Amy's Final Choice: Option A (Delay to 55)

  • Reason: 25 years of accumulation is more adequate
  • 50 is still young, working 5 more years is manageable
  • At 55, monthly withdrawal of NT$52,000 provides a more comfortable life

📊 Case Study 3: 50-Year-Old Manager David

Background

David is a corporate manager earning NT$200,000/month, married, children are independent.

Retirement Goals:

Current Financial Status:

Calculation Results

Item Amount
Total assets after 10 years NT$27.54 million
Monthly withdrawal (4% rule) NT$92,000
Monthly needs after retirement NT$80,000
Surplus +NT$12,000/month

🔍 Reality: Congratulations! Your Retirement Plan is Feasible

David is in the safe zone:

💰 Advanced Advice (Not Sales, Risk Reminders)

David's focus now should be "asset preservation," not "chasing high returns"

Risk 1: Market Crash

  • If facing a financial crisis 2 years before retirement (like 2008)
  • Assets could shrink from NT$27.54M to under NT$20M
  • Recommendation: Gradually reduce stock allocation 3 years before retirement

Risk 2: Inflation Eroding Purchasing Power

  • Current living expenses: NT$80,000/month
  • May need NT$100,000/month in 10 years (assuming 2.5% inflation)
  • Recommendation: Keep some growth assets after retirement

Risk 3: Longevity Risk

  • If living to 90, retirement funds need to last 30 years
  • 4% rule assumes assets will be depleted
  • Recommendation: Keep emergency reserves, don't invest everything

David's Final Choice: Maintain Original Plan, But Adjust Asset Allocation

  • First 7 years: Maintain 5% return (60% stocks / 40% bonds)
  • Last 3 years: Reduce to 3% return (30% stocks / 70% bonds)
  • At retirement: Total assets ~NT$26M (slightly lower than original, but safer)

🧮 Calculate It Yourself: Is Your Retirement Plan Feasible?

Don't trust your financial advisor. Don't trust us either. Calculate it yourself.

Free Calculator (30 seconds) →

✅ No Registration ✅ 100% Free ✅ No Sales Calls

💰 What If You Find a Shortfall After Calculating?

Don't panic. We don't recommend any investment products, but here are 3 directions to consider:

Direction 1: Increase Investment Amount

Review expenses: Any savings possible?

Increase income: Is freelancing possible?

Case references:

Direction 2: Adjust Expected Return Rate

7% too conservative? Can increase risk tolerance

5% more stable? Accept delayed retirement

⚠️ Important Reminder:

  • Higher returns = Higher risk, possible losses
  • Don't take risks just to retire early
  • Steady growth is more realistic than getting rich quick

Direction 3: Redefine Retirement

Full Retirement vs Semi-Retirement

Case reference:

Delaying retirement by 3-5 years significantly reduces pressure

😱 Hidden Risks in Retirement Planning: Things You Might Not Have Considered

Risk 1: Inflation Eroding Purchasing Power

Today's NT$1 million will only have NT$600,000 purchasing power in 20 years

Year Inflation Rate Purchasing Power
Today - NT$1 million
10 years later 2% NT$820,000
20 years later 2% NT$670,000
30 years later 2% NT$550,000

How to deal with it:

Risk 2: Longevity Risk

Living too long, running out of money

4% rule assumptions:

Risk 3: Surge in Medical Expenses

Biggest expense after retirement: Healthcare

Real case (from PTT):

"My dad had a stroke at 70, hospitalized for 3 months, cost NT$800,000
Fortunately had insurance, otherwise retirement funds would've been wiped out instantly"

Recommendations:

Risk 4: Market Crash Before Retirement

Worst case: Financial crisis 2 years before retirement

Case: 2008 Financial Crisis

How to deal with it:

🛠️ GoalApp Complete Decision Tool Kit

Retirement isn't your only financial decision. Before retirement, consider using these tools:

📊 Dollar-Cost Averaging Calculator

Calculate IRR return rate for regular investments

Start Calculating →

💸 Systematic Withdrawal Calculator

Simulate cash flow from monthly withdrawals

Start Calculating →

💰 Mortgage Arbitrage Analysis

Calculate opportunity cost of "prepay mortgage vs invest"

Start Calculating →

🏘️ Rental Property Investment Analysis

Calculate rental yield, appreciation, and IRR

Start Calculating →

💳 Installment vs Cash Decision

Compare true cost of "0% installment" vs "cash discount"

Start Calculating →

❓ Retirement Planning FAQ

Q1: How much retirement savings do I really need?

A: No standard answer, depends on your lifestyle

Simple formula:

Retirement Fund = Monthly Living Expenses × 12 × 25

Examples:

Why 25x?

Q2: How much can I get from Labor Insurance and Labor Pension?

A: Labor Insurance + Labor Pension, average about NT$20,000-30,000/month

Labor Insurance Old-Age Pension (average):

Labor Pension (average):

Total: ~NT$28,000/month

⚠️ Important:

  • Labor Insurance may go bankrupt, future payments may decrease
  • Don't rely entirely on government pensions
  • Self-prepared retirement funds are the key

Q3: How to factor inflation into retirement planning?

A: Calculate using "real purchasing power"

Example:

How to deal with it:

  1. Factor inflation into retirement fund target
  2. Keep some stocks after retirement to fight inflation
  3. Regularly review if withdrawal amount is sufficient

Q4: What is the 4% rule? Does it really work?

A: Withdraw 4% of retirement funds annually, theoretically lasts a lifetime

Principle:

Example:

⚠️ Limitations:

  • Assumes stable annual returns (actual will fluctuate)
  • Assumes lifespan doesn't exceed 85
  • May fail during financial crises

Recommendations:

Q5: How to estimate post-retirement medical expenses?

A: Recommend reserving NT$500,000-1,000,000 for medical emergencies

Under Taiwan's National Health Insurance, out-of-pocket costs aren't high, but be aware of:

Hospitalization out-of-pocket expenses:

Recommendations:

  1. Review existing insurance (actual expense coverage, long-term care)
  2. Reserve medical emergency fund NT$500,000-1,000,000
  3. Don't invest all retirement funds, keep some cash

🎯 Final Advice

Don't ask "How much retirement money do I need?"

Ask "Is my retirement plan feasible?"

Everyone's situation is different:

There's no absolute answer, only the answer that's best for you.

📌 Action Steps

  1. Calculate your numbersGoalApp Retirement Calculator
  2. Check the gap → Can you achieve your retirement goal?
  3. Adjust the plan → Save more / Delay retirement / Reduce expenses
  4. Review regularly → Recalculate annually
  5. Make a decision → Use data, not guessing

💡 Why Use GoalApp?

Our promise:

  • Free - Completely free, no hidden costs
  • No sales - We won't recommend any investment products or insurance
  • No data collection - No registration, no sales calls
  • 100% Objective - Just numbers, decision is yours

Remember: No guessing, just calculating.

Ready to Make Smart Decisions?

Start Calculating →

🔗 Further Reading

Want to learn more financial decision-making skills?