George Kosovich

Most early retirement calculators ask a simple question: “Do you have 25x your spending?” But a $2.5 million portfolio that is 90% locked in pre-tax accounts looks very different from one spread across taxable and Roth buckets. If you are targeting financial independence, the headline number is only half the battle. Discover why account structure and real tax management matter more than a rigid withdrawal percentage.

The old retirement model was a three-legged stool: pension, Social Security, and savings. Early retirement changes the math. When two of those legs disappear for decades, your retirement depends on something else entirely: how you structure taxable, pre-tax, and Roth accounts.

Mainstream retirement tools often compress massive assumptions into a single, rigid “probability of success” score. But real early retirement isn’t static. In this series finale, we look under the hood of retirement software blind spots, discuss why they over-favor aggressive Roth conversions, and share a free, transparent Google Sheet designed to make early retirement tradeoffs visible.

Choosing between 72(t) and a Roth conversion ladder is expensive to get wrong. Here’s a year-by-year example comparing both, with real numbers.