Three Essential Metrics Preston Seo Recommends for Building Wealth

The path to financial independence isn’t about earning massive income—it’s about knowing what to measure. Investment educator Preston Seo has built a following by breaking down the psychology of wealth building, and one key insight stands out: most people fail financially not because they don’t earn enough, but because they’re blind to their own numbers. The real accelerator to reaching millionaire status involves tracking three critical metrics that few people monitor consistently.

Even if you’re disciplined about putting money aside each month, you could still be moving backward financially without the right framework. Seo emphasizes this on his YouTube channel, Legacy Investing Show, where he unpacks the exact indicators that separate those who build wealth from those who just save.

Understanding Your Net Worth

Your net worth is the foundation metric—it’s everything you own minus everything you owe. This includes your property, investment accounts, cash reserves on the liabilities side, subtract any mortgages, loans, or outstanding debt.

The critical insight Seo stresses is that most people never actually calculate this number with any regularity. “The moment you start tracking your net worth, you stop playing the guessing game and shift into wealth-building mode,” he explains. This shift from hope to measurement is psychological as much as it is financial.

The tracking process doesn’t require complex software. A simple monthly spreadsheet update revealing which accounts are growing and which obligations are holding you back creates powerful visibility. “Once you see that number consistently climbing, you become obsessed with making better financial decisions,” Seo notes. One immediate application: transfer funds from low-yield savings accounts into investments or high-yield savings vehicles that actually work for you.

Calculating Your Savings Rate

Tracking net worth means nothing if you’re spending everything you earn. Your savings rate is straightforward math: (Income - Expenses) ÷ Income × 100. If you make $5,000 monthly and spend $3,000, your savings rate is 40%.

This single percentage has outsized importance. According to Seo’s framework, if you save less than 5% of income, you’re looking at 40+ years before retirement becomes possible. Jump to a 50% savings rate, and that timeline cuts in half. Push to 70-80%, and financial freedom arrives in less than a decade. The compounding effect of aggressive savings combined with investment returns creates exponential results that most people underestimate.

The savings rate is where theory meets reality—it’s where intention becomes action. It forces you to confront lifestyle choices and priorities head-on.

Determining Your Freedom Number

Your freedom number is the total amount needed to never work again. It’s calculated using what’s known as the 4% rule: multiply your annual expenses by 25.

Using the earlier example: $3,000 monthly expenses × 12 months = $36,000 annually. Multiply by 25, and your freedom number is $900,000. This number assumes that if you withdraw 4% from your portfolio annually, and your investments yield 4% per year, your money theoretically lasts forever.

Seo points out that this metric changes everything: most people work their entire lives without ever calculating what “enough” actually means. There’s no target, no finish line, no clarity. Once you know this number, your financial decisions become purposeful rather than reactive.

Connecting the Three Metrics

These three numbers work together as a system. Your net worth shows where you stand today. Your savings rate determines how fast you move forward. Your freedom number tells you exactly where you’re moving toward. Preston Seo’s framework reveals that wealth building isn’t mysterious—it’s measurable, systematic, and entirely within your control through disciplined tracking and intentional decision-making.