Retirement Planning and Compound Growth

Compound interest is the most powerful force in finance. Starting early and being consistent with retirement savings is the single most impactful financial decision you can make.

The Power of Compounding

How Compound Interest Works

• You earn returns on your returns
• The longer your time horizon, the more powerful the effect
• Small differences in starting time create enormous outcome differences

The Math That Changes Everything

• Start at 25, invest $500/month at 8% return: $1.74 million by age 65
• Start at 35, invest $500/month at 8% return: $745,000 by age 65
• Start at 45, invest $500/month at 8% return: $295,000 by age 65
• The 25-year-old invests only $60,000 more than the 35-year-old but ends up with $1 million more
• Time is the most valuable ingredient

The Rule of 72

• Divide 72 by your annual return to find how many years it takes to double
• At 8% returns: 72 / 8 = 9 years to double
• At 10% returns: 72 / 10 = 7.2 years to double
• At 6% returns: 72 / 6 = 12 years to double

Retirement Account Types

401(k) / 403(b)

• Employer-sponsored retirement plan
• Pre-tax contributions reduce current taxable income
• Employer match is free money (always contribute at least to the match)
• 2024 contribution limit: $23,000 (plus $7,500 catch-up if over 50)
• Withdrawals taxed as ordinary income in retirement

Traditional IRA

• Individual Retirement Account
• Contributions may be tax-deductible
• Growth is tax-deferred
• 2024 contribution limit: $7,000 (plus $1,000 catch-up if over 50)
• Required minimum distributions (RMDs) starting at age 73

Roth IRA

• Funded with after-tax dollars
• Growth and withdrawals are TAX-FREE
• No RMDs during your lifetime
• Income limits apply for direct contributions
• Ideal if you expect to be in a higher tax bracket in retirement

SEP IRA (for Self-Employed)

• Simplified Employee Pension
• Contribute up to 25% of net self-employment income
• Maximum contribution: $69,000 (2024)
• Perfect for profitable traders filing as self-employed
• Easy to set up and administer

Solo 401(k) (for Self-Employed)

• Can contribute as both employee and employer
• Higher contribution limits than SEP IRA in some cases
• Roth option available
• Can borrow from the plan (loan provision)

Retirement Planning Framework

How Much Do You Need

• Withdraw 4% of your portfolio in the first year of retirement
• Adjust annually for inflation
• Historically sustained a portfolio for 30+ years
• Example: Need $60,000/year = need $1.5 million saved

• Save 25 times your annual retirement expenses
• This is the inverse of the 4% rule
• Adjust up if you want to retire early or want a larger buffer

Savings Rate Guidelines

• Save at least 15% of gross income for retirement
• More is better, especially if starting later
• Include employer match in your calculation
• Increase savings rate by 1% each year

Investing for Retirement

Asset Allocation by Age

• 20s-30s: 90% stocks, 10% bonds (long time horizon)
• 40s: 80% stocks, 20% bonds
• 50s: 70% stocks, 30% bonds
• 60s+: 60% stocks, 40% bonds (or more conservative)
• These are guidelines, not rules

Index Funds are the Default

• Low fees (0.03-0.10% expense ratios)
• Broad market diversification
• Historically outperform most actively managed funds
• Set it and forget it approach works well for retirement accounts

Key Takeaways

1. Starting early is the single most important retirement planning decision
2. Always get the full employer 401(k) match
3. Roth IRA is ideal for younger workers expecting higher future income
4. Self-employed traders should use SEP IRA or Solo 401(k)
5. The 4% rule and 25x rule provide simple retirement targets