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The 4% Rule: How Much Can You Spend?
The "4% rule" is the foundation of retirement planning: You can withdraw 4% of your retirement portfolio in year 1, then increase for inflation annually, and it should last 30+ years.
Worked example:
- Portfolio at retirement: $1,000,000
- Year 1 withdrawal: $1,000,000 × 4% = $40,000
- Year 2 withdrawal: $40,000 × 1.03 (inflation) = $41,200
- Year 3 withdrawal: $41,200 × 1.03 = $42,436
- Year 30 withdrawal: ~$94,000 (inflation-adjusted)
The 4% rule came from research in the 1990s: Over rolling 30-year periods from 1926–2020, a 60/40 portfolio (60% stocks, 40% bonds) had a 95% success rate of supporting 4% withdrawals.
Modern reality: Recent studies suggest 3–3.5% is safer for 2024 (valuations are higher, expected returns lower).
Adjusted working example (3.5% rule):
- Portfolio: $1,000,000
- Year 1 withdrawal: $35,000 (more conservative)
- More sustainable in today's market
Three Sources of Retirement Income
Ideal retirement income mix:
1. Social Security (30–40%)
- Starts at 62–70 (you decide)
- Inflation-adjusted
- Guaranteed for life
- Doesn't depend on market performance
Worked example:
- Social Security at 67: $2,500/month = $30,000/year
- This is 30–40% of $75,000–$100,000 retirement income
2. Portfolio withdrawals (40–50%)
- From retirement accounts (401k, IRA, brokerage)
- Subject to market performance
- Tax-deductible distributions
Worked example:
- Portfolio: $1,000,000
- 3.5% withdrawal: $35,000/year
- This is 35–50% of retirement income
3. Part-time work / pension / other (0–30%)
- Some people work part-time in retirement (hobby, passion, income)
- Pensions (less common now)
- Rental income
- Part-time income reduces portfolio draws, extends it further
Combined example:
- Social Security: $30,000
- Portfolio withdrawal (3.5%): $35,000
- Part-time work: $10,000
- Total retirement income: $75,000/year
This is comfortable for many, austere for others (depends on lifestyle and location).
Tax-Efficient Withdrawal Strategy
Not all retirement accounts are taxed the same. You can optimize the order to minimize taxes.
Optimal withdrawal order:
1. Taxable accounts (brokerage) first
- Withdrawals are mostly capital gains (taxed at 15–20%)
- Long-term gains are taxed favorably
- At death, heirs get "step-up" in basis (no capital gains tax)
2. Traditional IRA/401k second
- Withdrawals are ordinary income (taxed at marginal rate: 24–37%)
- Forced withdrawals at 73 (RMD rules)
- Do withdrawals strategically before RMDs force you
3. Roth IRA last
- Withdrawals are tax-free
- No RMDs in your lifetime
- Preserve this for last to maintain tax-free growth
- Leave to heirs; they inherit tax-free growth
Worked example:
Assets at retirement:
- Taxable brokerage: $300,000
- Traditional IRA: $500,000
- Roth IRA: $200,000
- Total: $1,000,000
Retirement income needed: $50,000/year
Year 1–15 (withdraw from taxable first):
- Take $50,000 from taxable brokerage ($300k / 6 years = depleted by year 6)
- After year 6, switch to Traditional IRA
Year 6–25 (withdraw from Traditional IRA):
- Take $50,000/year from Traditional IRA
- Taxed as ordinary income
- But you manage the timing; don't take more than needed
Year 25–35+ (withdraw from Roth):
- Take $50,000/year from Roth (tax-free!)
- No taxes on these withdrawals
- At death, Roth goes to heirs tax-free
Tax savings over 30-year retirement:
- Optimized order (as above): ~$150,000 in taxes
- Random order (worst case): ~$250,000 in taxes
- Difference: $100,000
Working with a CPA on withdrawal sequence saves thousands.
Healthcare in Retirement: Planning and Costs
Medicare covers ~80% of healthcare; you pay the rest.
Breakdown:
- Medicare Part A (hospital): Free
- Medicare Part B (doctor): $175/month
- Part D (prescriptions): $50–$100/month
- Medigap supplement or Advantage plan: $100–$300/month
- Out-of-pocket (deductibles, copays): $2,000–$5,000/year
Total Medicare cost: ~$400–$700/month in 60s, rising with age
Major costs not covered:
- Dental: $200–$500/year
- Vision: $100–$200/year
- Hearing aids: $4,000–$6,000 (not covered)
- Long-term care: $5,000–$10,000/month (if needed)
Long-term care is the wildcard:
- 30% of people >85 need some long-term care
- Nursing home: $8,000–$10,000/month
- Assisted living: $5,000–$7,000/month
- Home care: $5,000–$8,000/month (24-hour)
If you live to 95 and need 3 years of care: $240,000–$360,000
How to plan:
Option 1: Long-term care insurance
- Buy at 60–65 (cheaper then)
- Cost: $2,000–$3,500/year for decent coverage
- Covers $100,000–$200,000 in care costs
- Lowers your risk significantly
Option 2: Self-insure
- Set aside $300,000–$500,000 for potential care
- Hope you don't need it (or have short decline)
- Simpler, but more capital tied up
Option 3: Hybrid (recommended)
- Buy long-term care insurance ($2,500–$3,000/year)
- Set aside $100,000–$200,000 buffer
- Covers most scenarios
Worked Example: Complete Retirement Plan
Person: Retired at 67 with $1,500,000 in assets
Assets breakdown:
- Taxable brokerage: $400,000
- Traditional IRA: $700,000
- Roth IRA: $400,000
Income sources:
- Social Security (claimed at 67): $2,500/month = $30,000/year
- Portfolio withdrawal (3.5% on $1,500k): $52,500/year
- Part-time consulting: $20,000/year (occasional)
- Total income: $102,500/year
Expenses:
- Housing (paid mortgage): $1,500/month = $18,000/year
- Healthcare (Medicare + supplements + OOP): $6,000/year
- Utilities, insurance, transportation: $12,000/year
- Food, entertainment: $24,000/year
- Travel (modest): $12,000/year
- Gifts, charity: $6,000/year
- Total: $78,000/year
Surplus: $102,500 - $78,000 = $24,500/year
This person has comfortable cushion (30% surplus over needs).
If unexpected costs arise (healthcare emergency, help family): They can absorb it.
Portfolio longevity:
- Year 1: $1,500,000 - $52,500 = $1,447,500
- Growth at 5%: $1,447,500 × 1.05 = $1,519,875
- Year 10: ~$1,600,000 (portfolio is growing faster than withdrawals)
- Year 30: ~$1,800,000+ (portfolio is safe)
This person can comfortably retire with significant runway.
Common Retirement Planning Mistakes
1. Underestimating healthcare costs
- Budget $300k–$500k for 30-year retirement
- Don't rely on Medicare alone
2. Claiming Social Security too early
- Claiming at 62 vs. 70 is $300,000+ lifetime difference (if live to 90)
- Unless poor health, delay
3. Withdrawing too much early
- Taking 5–6% in early retirement depletes portfolio
- Stick to 3–4% rule
4. Poor tax planning
- Don't withdraw optimally; pay 30–50% more in taxes
- Work with CPA on withdrawal sequence
5. Ignoring RMD (Required Minimum Distribution)
- At 73, IRS forces withdrawals from Traditional IRA/401k
- Ignore this, pay 25% penalty
- Plan withdrawals before 73
6. Overestimating part-time income
- Many plan to work part-time in retirement; don't actually do it
- Conservatively budget; don't rely on it
Action Items: Retirement Financial Plan
Calculate portfolio needed: Use 3–3.5% rule: Income / 0.035 = portfolio
- Want $75,000/year? Need $2.1M portfolio
Model Social Security: Claim at 62, 67, or 70? Calculate lifetime value
Plan healthcare: Long-term care insurance? Self-insure? Budget $300k–$500k
Build HSA: If eligible, max HSA in 50s; use for healthcare in retirement
Coordinate withdrawals: Work with CPA on withdrawal order (taxable, traditional, Roth)
Review expected expenses: Healthcare, housing, lifestyle—estimate annual spend
Stress test: What if market drops 30%? Portfolio still sustainable?
Plan for longevity: Budget to age 95–100 (not 85)
Designate heirs: Update beneficiaries on all accounts
Revisit annually: Track spending, adjust withdrawals for inflation, monitor market
Retirement is achievable if you plan: max retirement accounts in your 40s–50s, save 3–3.5 years of expenses, and coordinate withdrawals carefully. Most people retiring at 67 with $1.5M–$2M can sustain themselves comfortably to age 95+.
