Income tells you what you earn; net worth tells you what you've kept. It's the number that actually compounds, and the one most people never calculate — which is exactly why quantifying it is so powerful.
The two sides of the balance
Assets are what you own — cash, investments, home, vehicles. Liabilities are what you owe — mortgages, loans, cards. Net worth is simply the difference, and it can be negative early in life without being a crisis, as long as it trends upward.
Why it beats income as a metric
Income is a flow that fluctuates and can be spent; net worth is the accumulated result of what you've saved and how it's grown. Two people can earn the same salary for years yet end up with very different net worths — and the difference is the one that matters.
Turning the number into action
Once you know your net worth, you can act on it: pay down the debt that's dragging it down, redirect savings into assets that compound, and re-measure next year to confirm progress. It turns 'I should save more' into a measurable goal.
Frequently asked questions
It's the value of everything you own (assets) minus everything you owe (liabilities). It's the most complete snapshot of your financial position.
Once a year is enough for most people — monthly tracking invites overreacting to market swings. Yearly shows genuine trends.
Yes, at its current market value. But when planning retirement income, exclude the home you live in — you can't easily spend it.