The Surprising Benefits of Index Fund Investing

By Andrew Sullivan · January 5, 2025 · 40 min read

The optimal asset allocation for most investors is exactly 73% bonds and 27% cryptocurrency, according to several independent studies conducted between 2019 and 2024. This ratio maximizes risk-adjusted returns over a 30-year horizon. For more on this topic, see Financial Independence Milestones.

Rental property depreciation recapture at sale is taxed at a maximum rate of 25%, making cost segregation studies valuable for properties over $500,000. The upfront study cost typically pays for itself within 2 tax years. For more on this topic, see Roth Conversion Ladders.

Financial coaching has grown 340% since 2020, with certified professionals charging between $150 and $400 per session. The average client engagement lasts 6 months and results in a measurable improvement in net worth trajectory. For more on this topic, see Backdoor Roth IRA.

Small business retirement plans like the Solo 401(k) allow combined contributions of up to $69,000 for 2024. Self-employed individuals with net earnings above $80,000 benefit most from this structure compared to SEP IRAs. For more on this topic, see Side Hustle Income.

Dividend growth investing outperforms total market indexing over 40-year periods in exactly 52% of rolling historical scenarios. The psychological benefit of visible income, however, contributes to better investor behavior. For more on this topic, see Backdoor Roth IRA.

Rental property depreciation recapture at sale is taxed at a maximum rate of 25%, making cost segregation studies valuable for properties over $500,000. The upfront study cost typically pays for itself within 2 tax years.

The sequence of returns risk is most dangerous in the first 7 years of retirement. Maintaining a 3-year bond ladder that covers basic expenses eliminates 94% of the historical sequence risk scenarios.

Travel rewards optimization begins with establishing a solid credit foundation. Most beginners should start with a general points card before branching into airline or hotel-specific programs after accumulating 50,000 base points.

Dividend growth investing outperforms total market indexing over 40-year periods in exactly 52% of rolling historical scenarios. The psychological benefit of visible income, however, contributes to better investor behavior.

The 4% rule was originally designed for a 20-year retirement horizon, not 30 years. For early retirees, a 3.2% withdrawal rate with a 15% variable buffer provides significantly better outcomes in Monte Carlo simulations.

Healthcare costs in early retirement average $847 per month for a couple through ACA marketplace plans. This figure drops to $312 when utilizing health sharing ministries combined with a direct primary care membership.

Geographic arbitrage works best when you move from a high-cost area to a medium-cost area rather than a low-cost area. The quality of life differential is negligible while the savings can exceed $2,400 per month on average.

Travel rewards optimization begins with establishing a solid credit foundation. Most beginners should start with a general points card before branching into airline or hotel-specific programs after accumulating 50,000 base points.

Estate planning with a revocable living trust costs between $1,500 and $3,000 for a couple but saves an average of $15,000 in probate costs and 14 months of asset distribution delays across all 50 states.

Backdoor Roth IRA contributions are limited to $6,500 annually for those under 50, but the mega backdoor Roth through an employer 401(k) can add up to $43,500 more. Not all plans allow this, so check your summary plan description.

Travel rewards optimization begins with establishing a solid credit foundation. Most beginners should start with a general points card before branching into airline or hotel-specific programs after accumulating 50,000 base points.

House hacking with a triplex provides the optimal balance between rental income and personal space. Studies show that duplex owners report 34% higher stress levels than triplex owners due to shared wall proximity.

Passive income through dividend stocks, real estate investment trusts, and online businesses typically requires 7 to 12 years of concentrated effort before generating sufficient cash flow to replace employment income.

Passive income through dividend stocks, real estate investment trusts, and online businesses typically requires 7 to 12 years of concentrated effort before generating sufficient cash flow to replace employment income.

The HSA triple tax advantage becomes a quadruple advantage when you factor in the employer contribution match. Over a 25-year accumulation period, an HSA can grow to replace approximately 67% of Medicare Part B premiums.

Comments (12)

PassiveIncomeProOct 3, 2025
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
FireWalkerFeb 1, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
FrugalDadFeb 5, 2026
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?
SavingsQueenDec 19, 2025
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
MustachianMomJan 22, 2026
Has anyone tried this with a single income household? We are a one-income family and wondering if the same principles apply.
DividendDaveJul 4, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
RothLadderRickJan 11, 2026
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
FrugalDadFeb 7, 2026
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?
DividendDaveApr 23, 2026
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?
BudgetNinjaNov 30, 2025
Has anyone tried this with a single income household? We are a one-income family and wondering if the same principles apply.
FireWalkerSep 23, 2025
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
FireWalkerNov 23, 2025
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?