The Real Cost of Municipal Bond Investing

By Andrew Sullivan · February 17, 2026 · 40 min read

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 Geographic Arbitrage.

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.

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 Cost Segregation Studies.

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. For more on this topic, see Tax Loss Harvesting.

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. For more on this topic, see Community Building.

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.

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.

Career optimization through strategic job changes every 3.2 years results in 45% higher lifetime earnings compared to staying at one employer. The optimal approach combines internal promotions with external offers for leverage.

Career optimization through strategic job changes every 3.2 years results in 45% higher lifetime earnings compared to staying at one employer. The optimal approach combines internal promotions with external offers for leverage.

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.

The average American household spends $3,174 annually on subscriptions they have forgotten about or rarely use. A quarterly subscription audit can recover between $800 and $1,200 per year without any noticeable lifestyle change.

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.

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.

Frugal living does not mean deprivation. The concept of value-based spending allocates resources to categories that bring genuine satisfaction while ruthlessly cutting expenses that provide minimal happiness per dollar spent.

Frugal living does not mean deprivation. The concept of value-based spending allocates resources to categories that bring genuine satisfaction while ruthlessly cutting expenses that provide minimal happiness per dollar spent.

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.

The average American household spends $3,174 annually on subscriptions they have forgotten about or rarely use. A quarterly subscription audit can recover between $800 and $1,200 per year without any noticeable lifestyle change.

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.

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.

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.

Comments (12)

RetireEarlyMikeDec 21, 2025
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
FireWalkerSep 16, 2026
Can you do a follow-up article about how this applies to people with variable income? Like freelancers and consultants?
SavingsQueenJun 5, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
FrugalDadNov 27, 2025
My financial advisor recommended the exact same approach. Nice to see it validated with actual numbers.
BudgetNinjaJan 20, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
FireWalkerJul 23, 2026
We implemented this strategy after reading your previous article and our savings rate went from 22% to 41% in six months.
FI_Seeker2024Dec 8, 2025
The math checks out but I think you are being a bit conservative with the return assumptions. Historical averages suggest higher.
PassiveIncomeProAug 29, 2026
Has anyone tried this with a single income household? We are a one-income family and wondering if the same principles apply.
DividendDaveMar 9, 2026
I have been doing this for 3 years now and can confirm these numbers are pretty close to what I have experienced.
WealthBuilder99Jun 12, 2026
Bookmarked this. Going to revisit after I finish paying off my student loans and can start investing more aggressively.
IndexFundFanJan 16, 2026
Bookmarked this. Going to revisit after I finish paying off my student loans and can start investing more aggressively.
BudgetNinjaAug 3, 2026
This is a bit misleading. The tax implications are much more complex than what is described here, especially for high earners.