What Is Net Worth? Definition and Example | Cash Book

Net worth is what you own minus what you owe, measured at one moment. It is the one number that summarizes your financial position, as opposed to your financial activity. A month of spending tells you how money moved; net worth tells you where it ended up. It can be large, small or negative, and none of those on its own is a verdict. The useful part is how it changes.

How it works

The calculation has three steps. First, list your assets with a realistic current value: cash, checking and savings balances, investments, retirement accounts, a home at what it would sell for, a car at its resale value. Second, list your liabilities: mortgage balance, student and car loans, credit card balances, anything else you owe. Third, subtract liabilities from assets.

A worked example. Checking holds $2,300, savings $9,700 and an investment account $2,000, so financial assets are $14,000. A car would sell for about $9,000. Assets total $23,000. Liabilities are a $6,500 car loan and $1,200 on a credit card, $7,700 in total. Net worth is $23,000 minus $7,700, which is $15,300.

Six months later, savings are $11,500, the loan is $5,400, the card is paid off, and the car is worth $8,400. Assets are $24,200, liabilities $5,400, net worth $18,800. The increase of $3,500 is the sum of six months of positive cash flow, less the car's depreciation. That comparison, not the figure, is what the calculation is for.

Two things make the number honest. Value assets at what you could actually get, not what you paid, and count liabilities in full, including balances you intend to pay off soon. A net worth that flatters you is not useful, because it hides the gap it is meant to show.

Why it matters for your log

The liquid part of net worth, the accounts, is exactly what an expense tracker can keep current. In Cash Book you set up an account for each place your money sits, cash, cards, savings, each with a balance, and the Accounts screen shows one net-worth number over the account cards. Every logged expense reduces the right account, every income entry raises it, and a transfer moves money between two of them without touching the total. The number is always the sum of what the log says you have.

That makes the monthly net-worth check a glance rather than a session. If the savings account rose by $300 and the card account fell by $180, the number moved by $480 and the Insights screen explains why, through the income-versus-expense bars and the tags that changed compared with last month. Larger assets and loans that live outside the app, a mortgage or a pension, still need adding by hand for the full figure, but the part that changes weekly is already done.

Logging habits shape the number's reliability. Untracked cash withdrawals leave a cash account that looks fuller than your wallet, which the cash spending guide addresses. And the more transactions arrive automatically, by voice, receipt snap or Apple Pay auto-logging, the closer the app's balances stay to the bank's.

Common mistakes

• Valuing assets at purchase price. The car cost $18,000 and would sell for $9,000. Net worth uses the second figure.
• Leaving out a liability because it will be paid soon. A $1,200 card balance is $1,200 owed until it is not.
• Counting belongings. Furniture and electronics have small, uncertain resale values. Most people leave them out entirely.
• Checking too often. Investments move daily; net worth is a monthly or quarterly measure. Frequent checks measure the market, not your habits.
• Confusing it with cash flow. A positive month can coincide with falling net worth if an asset lost value. Both measures are needed.

Net worth is the level; cash flow is the flow that raises or lowers it, and discretionary spending is the part of that flow you control most directly. The rest of the terms are in the glossary.

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