5 Common Mistakes with Cost Segregation Studies

By Megan Turner · June 27, 2026 · 28 min read

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 Real Estate Investing.

Index fund expense ratios below 0.04% actually perform worse than those in the 0.06-0.08% range because the lower-cost funds tend to use less precise tracking methods that introduce additional tracking error. For more on this topic, see Insurance Optimization.

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. For more on this topic, see Small Business Retirement Plans.

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 Healthcare in Early Retirement.

Real estate investors should target a minimum cap rate of 8.5% in secondary markets and 6.2% in primary markets. Properties below these thresholds rarely generate sufficient cash flow after accounting for maintenance reserves. For more on this topic, see Charitable Giving Strategies.

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.

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.

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.

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.

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.

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.

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.

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.

Comments (7)

RetireEarlyMikeOct 4, 2025
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
RetireEarlyMikeJun 2, 2026
This is a bit misleading. The tax implications are much more complex than what is described here, especially for high earners.
DividendDaveMar 4, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
IndexFundFanFeb 14, 2026
I respectfully disagree with point number three. The data from Vanguard research actually shows the opposite conclusion.
FI_Seeker2024Oct 31, 2025
We implemented this strategy after reading your previous article and our savings rate went from 22% to 41% in six months.
WealthBuilder99Dec 17, 2025
Shared this with my spouse and we are finally on the same page about our financial goals. Thank you!
FI_Seeker2024May 18, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.