Many interbank clearing systems take the form of end-of-day clearing (as opposed to continuous). Payments due between each of the clearing house members are calculated on a gross basis but payments are done on a net basis. Netting reduces overall risks arising from the failure of one member. Examples of clearing systems in the US are Fedwire, for payments between US Federal Reserve bank members, and CHIPS, for payments between New York-based banks.
Check clearing poses some practical problems. In more developed countries check details are captured at the branch of the bank where they are deposited, using a combination of different methods. Some data is encoded in magnetic form of the checks and can be scanned. Some data can be captured using optical character recognition (OCR) systems and the rest has to be input manually. Checks are then only retained as part of the process of maintaining a paper audit trail. In less developed countries checks have to be delivered in physical form to a regional or national data entry center where the data is captured.
Some countries also have specialist payment systems used for salary payments, payments to suppliers, standing orders and so on. Members of these systems include non-financial organizations. These systems are a part of what is now more generally referred to as e-commerce and cover settlement of B2B (business-to-business) and B2C (business-to-consumer) transactions. Despite the introduction of the euro no single European clearing and payments systems exists and banks must rely on other means such as sending instructions via SWIFT or their own networks and using national payments systems.
In “continuous” systems net settlement is done on a much more frequent, intra-day basis. These systems are often associated with secondary capital market transactions (bond clearing, for example). Continuous net settlement is generally accepted as further reducing risk.