Counting honestly
Value assets at what they would genuinely fetch, not what you paid. Property at a realistic sale price, cars at market value, and personal items only if you would truly sell them. Optimistic valuations produce a comforting number and a useless one.
Count every liability: mortgage, car and personal loans, student debt, card balances, money owed to family. The temptation to omit awkward debts is precisely why the number should include them.
Liquid versus total net worth
Total net worth includes your home, but you cannot pay bills with a bedroom. Liquid net worth counts only what converts to cash quickly: bank balances and investments minus short-term debts. It is the figure that determines resilience in an emergency.
A high total with weak liquidity is common and fragile: property-rich, cash-poor households survive on paper and struggle in practice. Both numbers matter, for different questions.
What to do with the number
The level matters less than the trend. Compute it quarterly or twice a year, the same way each time, and watch the direction. A rising net worth means your saving and debt repayment are outrunning your spending and interest, which is the entire game in one line.