Retirement Basics
Net Worth: The One Number That Tells the Truth
Income tells you what you earn. Net worth tells you what you keep. Only one of them retires you.
The whole equation
Net worth is simply everything you own minus everything you owe. Cash, investments, retirement accounts and property on one side; credit cards, student loans, car loans and the mortgage on the other.
Assets
$1.46M
Liabilities
$200k
Net worth
$1.26M
Why it beats every other metric
- It can't be faked by a big paycheck — high earners with high spending often have low net worth.
- It captures debt paydown, which feels invisible but is real progress.
- It's the base your withdrawal rate and retirement odds are calculated from.
How to track it well
- List every account and balance once a month — same day each time.
- Subtract all debts to get the single number.
- Watch the trend, not the daily wiggle. Markets bounce; the line should rise over years.
Don't check it daily — that's how you turn a long-term trend into a source of anxiety. Monthly is plenty. The slope over years is the only part that matters.
Liabilities count too
A $1.5M portfolio with a $400k mortgage isn't the same as one with no debt. Tracking net worth — not just assets — keeps you honest about your true position.
Key takeaways
- Net worth = assets − liabilities. It's the truest single progress metric.
- It rewards both saving and debt paydown.
- Update monthly and follow the multi-year trend, not the noise.
- Your retirement odds are built on this number — keep it current.