Salary gets most of the attention in money conversations, but salary is a flow, not a total — it says nothing about what's actually been kept and built over time. Net worth is the number that does that job: a single figure that captures every asset and every debt at once, which is exactly why it moves slower and means more than a paycheck ever will on its own.
The Net Worth Formula
Net worth = total assets − total liabilities. Assets are everything you own with real market value: cash, checking and savings balances, retirement and investment accounts, the current value of a home or car, and any other property that could actually be sold or converted to cash. Liabilities are everything you owe: mortgage balance, student loans, car loans, credit card balances, and any other debt with a real outstanding amount. The result can be positive or negative, and both are normal at different life stages.
A Full Worked Example
Take a household with the following on the asset side: checking account $2,400, savings account $8,500, 401(k) balance $34,000, home currently worth $310,000, and a car worth $9,000 — total assets of $363,900. On the liability side: remaining mortgage balance $248,000, student loan balance $14,300, car loan balance $6,200, and credit card balances totaling $6,400 — total liabilities of $274,900.
Subtracting $274,900 from $363,900 leaves a net worth of $89,000. Notice that this household's largest asset, the home, still carries $248,000 of debt against it — the home contributes only $62,000 in real equity ($310,000 minus $248,000) to the total, which is a common surprise for people calculating net worth for the first time and expecting a big house value to dominate the number.
Step-by-Step: Building Your Own Net Worth Statement
List every asset in one column with its current market value, not its purchase price. For a home, use a recent estimate from a real estate site or appraisal, not what it sold for years ago. For retirement and investment accounts, use the current balance shown on the latest statement, not contributions made to date. For a car, use a current trade-in or private-party estimate, since cars generally lose value over time and using the purchase price overstates the asset.
List every liability in a second column with the current outstanding balance, not the original loan amount. A mortgage taken out at $280,000 that's been paid down to $248,000 should show $248,000, since that's what's actually still owed.
Add each column, then subtract liabilities from assets. Save the date and the result somewhere it can be compared later — a spreadsheet, a tracker, or a simple note. The single number matters less than having a comparable one next quarter.
Why the Trend Matters More Than the Number
A single net worth calculation is a snapshot; it doesn't say much on its own. What matters is the direction it moves over consecutive check-ins. Take the same household from the example above, checked quarterly over a year: $81,200 in Q1, $84,650 in Q2, $87,100 in Q3, and $89,000 in Q4. That's $7,800 of growth over three quarters, driven by three specific things: $3,200 from retirement contributions and modest 401(k) growth, $2,300 from paying down the credit card and car loan balances, and $2,300 from routine mortgage principal payments building home equity.
None of those three drivers required a dramatic life change — no windfall, no raise, no lottery ticket. That's the actual value of tracking net worth: it makes ordinary, boring financial habits visible as real progress, in a way a bank balance alone never will, because a bank balance doesn't show debt paid down or retirement contributions building quietly in the background.
Common Net Worth Mistakes
The most common mistake is using purchase price instead of current value for a home or car, which inflates the asset side and produces a misleadingly high number. The second is forgetting a liability — a personal loan from a family member, a "buy now pay later" balance, a medical bill on a payment plan — because it doesn't arrive as a monthly statement the way a mortgage does. The third is checking too often: net worth calculated weekly mostly reflects stock market noise in retirement accounts, not real progress, and can be discouraging for no good reason. Quarterly is frequent enough to see a real trend and infrequent enough that each check-in shows genuine movement.
Net Worth Looks Different for a Renter
The homeowner example above has 68% of total assets tied up in a single illiquid item, the home, with liabilities running 75.5% of assets ($274,900 of $363,900). Net worth isn't only calculated that way, and it's worth seeing a second example built without a mortgage at all: a renter with $3,200 in checking, $12,000 in savings, $28,000 in a 401(k), and a car worth $6,000 — total assets of $49,200. Liabilities: a $9,000 student loan, a $3,500 car loan, and $1,200 in credit card balances — total liabilities of $13,700. Net worth: $35,500, with liabilities running just 27.8% of assets.
Both examples show healthy, growing households, but the composition is completely different — the homeowner's net worth is dominated by illiquid home equity, while the renter's is almost entirely liquid or semi-liquid (cash, savings, retirement). Neither structure is inherently better; a homeowner's number reflects real equity that took a down payment and years of principal payments to build, while a renter's number reflects money that's easier to access quickly but hasn't been growing through forced mortgage paydown. The debt-to-asset ratio (total liabilities divided by total assets) is a useful second number alongside net worth itself, since two households can have similar net worth figures with very different levels of underlying leverage.
The Short Version
Net worth equals total assets at current market value minus total liabilities at current balance. Calculate it quarterly, save each result, and pay attention to the trend across check-ins rather than judging any single number against a national average. Growth usually comes from a combination of debt payoff, retirement contributions, and asset appreciation working together, not from one big move.
Product recommendation
Recommended DaveWays Resources
Net Worth Tracker
A quarterly net worth statement template built around exactly this assets-minus-liabilities format, with a running trend chart.
Monthly Money Dashboard
Pair net worth tracking with a monthly view of cash flow, balances, and progress toward savings goals.
FAQ
How do you calculate net worth?
Add up everything you own at current market value (assets), add up everything you owe (liabilities), and subtract liabilities from assets.
Should I include my home and car in net worth?
Yes, at current market value, paired with the remaining loan balance on the liabilities side so both sides reflect reality.
What's a good net worth for my age?
There's no single correct number since it depends on income, location, and debt like student loans. Your own trend over time matters more than a national comparison.
How often should I calculate net worth?
Quarterly is frequent enough to catch real trends without reacting to short-term market noise.
Can net worth be negative?
Yes, and it's common, especially right after a mortgage or finishing school with student loans. The direction it's moving matters more than the sign.
Educational resource only, not personalized financial or investment advice. The figures above are an illustrative example; use your own account statements and current market estimates for a real calculation. See Investor.gov (US Securities and Exchange Commission) for further reading on personal financial statements and retirement accounts.
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