Financial capital (also simply known as capital or equity in finance, accounting and economics) is any economic resource measured in terms of money used by entrepreneurs and businesses to buy what they need to make their products or to provide their services to the sector of the economy upon which their operation is based, e.g., retail, corporate, investment banking, etc. In other words, financial capital is internal retained earnings generated by the entity or funds provided by lenders (and investors) to businesses in order to purchase real capital equipment or services for producing new goods and/or services.

In contrast, real capital (or economic capital) comprises physical goods that assist in the production of other goods and services, e.g. shovels for gravediggers, sewing machines for tailors, or machinery and tooling for factories.