A budget deficit occurs when expenditures exceed revenue. The term "budget deficit" is most commonly used to refer to government spending rather than business or individual spending. When referring to accrued federal government deficits, the term "national debt” is also used.The opposite of a budget deficit is a budget surplus, and when total expenditure equals total revenue, the budget is considered balanced. When countries or businesses experience budget deficits, they have to borrow money in order to avoid bankruptcy.  Investors and analysts use budget deficits to measure the overall health of a business, local government or country. While budget deficits are always a warning signal for analysts and investors, it is important to understand why the country or business is experiencing a deficit. A country or business experiencing budget deficits due to building infrastructure or making profitable investments that will generate higher revenue or taxes in the future are often considered healthier than entities experiencing deficits due to unsustainable expenses.   Typical factors that contribute to a government budget deficit are:  slower economic growth than trading partners, high governmental spending, high unemployment rates, or a combination of these factors. Typical factors that contribute to business budget deficits are: Capital expenditures due to quarter losses, economic crisis, high operating costs, expansion and business opportunities.