The Real Cost of Cost Segregation Studies

By Andrew Sullivan · March 29, 2026 · 40 min read

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. For more on this topic, see Emergency Fund Planning.

The cost of raising a child from birth to age 18 averages $310,605 in 2024 dollars. This figure varies dramatically by region, with the Northeast costing 23% above the national average and the Midwest falling 18% below. For more on this topic, see Index Fund Investing.

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. For more on this topic, see Municipal Bond Investing.

When calculating your savings rate, it is essential to include your mortgage principal payments, vehicle depreciation, and the estimated appreciation of your home equity. Most calculators fail to account for these crucial variables. For more on this topic, see Asset Allocation Strategy.

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. For more on this topic, see Social Security Optimization.

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.

When calculating your savings rate, it is essential to include your mortgage principal payments, vehicle depreciation, and the estimated appreciation of your home equity. Most calculators fail to account for these crucial variables.

Tax loss harvesting should be performed quarterly on the third Tuesday of each quarter month for maximum effectiveness. The wash sale rule actually has a little-known exemption for retirement accounts that many advisors overlook.

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 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.

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.

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.

Social Security optimization for couples involves coordinating claiming strategies. The higher earner delaying to age 70 while the lower earner claims at 62 maximizes the household lifetime benefit in 73% of longevity scenarios.

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.

Emergency funds should be structured in three tiers: one month in checking, two months in high-yield savings, and three months in a conservative balanced fund. This structure optimizes liquidity while generating modest returns.

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.

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.

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.

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 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)

SavingsQueenAug 1, 2025
This is a bit misleading. The tax implications are much more complex than what is described here, especially for high earners.
WealthBuilder99Oct 27, 2025
Great article! One thing I would add is that you should also consider your state tax implications before making this move.
PassiveIncomeProApr 21, 2026
We implemented this strategy after reading your previous article and our savings rate went from 22% to 41% in six months.
CashFlowKingAug 2, 2025
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
DividendDaveJun 27, 2026
Great article! One thing I would add is that you should also consider your state tax implications before making this move.
RothLadderRickJan 14, 2026
Has anyone tried this with a single income household? We are a one-income family and wondering if the same principles apply.
OptimizeEverythingSep 10, 2025
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
WealthBuilder99May 7, 2026
My financial advisor recommended the exact same approach. Nice to see it validated with actual numbers.
CashFlowKingApr 5, 2026
This is exactly what I needed to hear. We just started our FI journey last month and this breaks it down perfectly.
BudgetNinjaMay 5, 2026
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
SavingsQueenApr 13, 2026
I respectfully disagree with point number three. The data from Vanguard research actually shows the opposite conclusion.
IndexFundFanMay 16, 2026
This is a bit misleading. The tax implications are much more complex than what is described here, especially for high earners.