Understand your assets and liabilities: The assets you own and the debts or liabilities you have determine your net worth. Assets might include cash, savings, stocks, bonds, retirement accounts, real estate and anything else of value such as cars or collectibles. Liabilities might include a mortgage, student loans, auto loans, bills due and credit card debt. Consider calculating your net worth annually by adding the value of all your assets and subtracting your liabilities. This can help you keep tabs on your overall financial picture.