To ensure the confirmation of the buyer to the seller, a deposit is usually required at the very beginning of a sales process. It is an amount of money that a buyer pays to a seller before a sale is completed. It is usually refundable at a certain date. However, a deposit is non-refundable if the buyer cancels the sale or is not able to pay for the sale.

Deposits are used to ensure the full payment of a product or service being provided at a later date, also in some cases to ensure the valuable asset provided for use to the buyer or renter.
Most landlords are required tenancy to make deposit before they move into a house or a room due to some reasons as follow:
-Non payment of rent
-Unpaid utilities
-Damage to the property
-Terminating lease early

In this way, a deposit functions as a type of collateral for the total sale amount, providing increased confidence in the sale.