This refers to loss of income that is in consequence of a covered loss mostly under a property policy. It is not sold on standalone basis but is usually added as an endorsement or a separate section to a base property policy. While the damage to property might be limited in an absolute sense but the lost profits may be significant if the business is unable to operate. Furthermore, there are often some fixed costs that do not subside even when there is downtime. Such fixed costs or extra expenses could also be included in a Business Interruption cover.