Net Worth: The One Number That Tells You If You're Winning

Salary is the number most people track. It's the wrong one to obsess over on its own — two people earning the same salary can be in completely different financial positions, because salary only measures what comes in, not what you've actually built with it.

Net worth fixes that. It's one simple calculation: everything you own, minus everything you owe.

The formula

Net worth = Assets − Liabilities.

• Assets are things with value: cash in savings, investments, pension value, and (carefully — see below) property.
• Liabilities are what you owe: credit card balances, loans, car finance, and any mortgage outstanding.

Subtract one from the other and you get a single number that reflects your actual financial position — not your income, not your lifestyle, but what you've genuinely accumulated after debt.

Why this number is more honest than income

A high earner with expensive taste can have a lower net worth than a modest earner who saves consistently — the salary looks better on paper, but the balance sheet tells the real story. Net worth captures the compounding we keep coming back to: it's the running scoreboard for every saving decision, every bit of debt paid off, and every pound invested, added together in one place.

A practical note on property

It's tempting to plug your home's estimated market value straight in as an asset and feel great about the number. Two things to keep in mind: value estimates for your own home are usually optimistic, and if you have a mortgage, only the equity — value minus what's still owed — is genuinely yours. A simple approach many people use is to track net worth with and without property equity separately, so property market swings don't drown out the progress (or lack of it) in your actual savings and investments.

Track it monthly, not obsessively

Net worth moves slowly. Checking it daily just shows you noise — a stock market dip, a big bill that month. Checking it monthly, on the same day each time, shows you a trend: is the number going up, flat, or down, over a run of months? That trend is far more useful than any single month's figure.

Where it fits with everything else

Income growth increases what comes in. A saving system decides how much of that is kept. Investing decides how the kept part grows. Net worth is the one number where all three of those show up together — the running total of every one of those small decisions, compounding in the same place.