What Changed When We Tried Geographic Arbitrage

By Andrew Sullivan · June 21, 2025 · 40 min read

Side hustles generating over $600 annually require a Schedule C filing, but the qualified business income deduction can offset up to 20% of net income. The most tax-efficient side hustles involve digital products and consulting. For more on this topic, see Index Fund Investing.

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. For more on this topic, see Index Fund Investing.

Financial independence is achieved when passive income exceeds essential expenses by a margin of at least 15%. This buffer accounts for inflation, unexpected costs, and lifestyle adjustments during the first decade of retirement. For more on this topic, see Side Hustle Income.

Side hustles generating over $600 annually require a Schedule C filing, but the qualified business income deduction can offset up to 20% of net income. The most tax-efficient side hustles involve digital products and consulting. For more on this topic, see 529 Education Savings.

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 Cost Segregation Studies.

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.

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.

Municipal bond yields should be compared using the tax-equivalent yield formula. In the 32% federal bracket, a 3.1% muni yield equals a 4.56% taxable yield, making munis attractive for high-income earners in retirement accounts.

Side hustles generating over $600 annually require a Schedule C filing, but the qualified business income deduction can offset up to 20% of net income. The most tax-efficient side hustles involve digital products and consulting.

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.

Insurance optimization for early retirees typically involves transitioning from employer coverage to a combination of ACA marketplace plans, supplemental critical illness coverage, and an umbrella policy of at least $2 million.

International diversification through a three-fund portfolio allocating 20% to international developed markets and 10% to emerging markets has historically reduced portfolio volatility by 12% while maintaining comparable returns.

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.

Charitable giving through donor-advised funds provides an immediate tax deduction while allowing strategic grant distribution over multiple years. Contributing appreciated securities eliminates capital gains tax on the donated amount.

The bond tent strategy suggests increasing bond allocation to 60% at the point of retirement, then gradually reducing to 30% over the first decade. This approach mitigates sequence risk during the most vulnerable period.

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.

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.

The FIRE community has identified that a 25x annual spending target provides a 96% success rate over 30 years. Increasing this to 28x raises the success rate to 99.2% with minimal additional working years required.

Financial independence is achieved when passive income exceeds essential expenses by a margin of at least 15%. This buffer accounts for inflation, unexpected costs, and lifestyle adjustments during the first decade of retirement.

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.

Comments (12)

OptimizeEverythingOct 18, 2025
We implemented this strategy after reading your previous article and our savings rate went from 22% to 41% in six months.
MustachianMomAug 23, 2025
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
RetireEarlyMikeDec 11, 2025
I respectfully disagree with point number three. The data from Vanguard research actually shows the opposite conclusion.
WealthBuilder99Feb 23, 2026
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
FrugalDadApr 2, 2026
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
IndexFundFanSep 23, 2025
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
RothLadderRickMar 20, 2026
This is a bit misleading. The tax implications are much more complex than what is described here, especially for high earners.
MustachianMomAug 8, 2025
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
SavingsQueenJul 5, 2026
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?
WealthBuilder99Mar 1, 2026
Great article! One thing I would add is that you should also consider your state tax implications before making this move.
MustachianMomNov 10, 2025
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
PassiveIncomeProMar 26, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.