4.1 The Check Clearing System

Checks remain a significant payment instrument, particularly in the United States. However, their usage has declined substantially in favor of electronic payments .

The Check Clearing Process

  1. Drawer writes check to payee

  2. Payee deposits check at their bank

  3. Payee’s bank submits check for clearing

  4. Clearing process: Check is routed to drawer’s bank

  5. Settlement: Funds transfer between banks

  6. Payee’s account credited; drawer’s account debited

Electronic Check Processing

Check 21 Act (US) : Allows banks to process checks electronically, eliminating the need for physical check transportation. “Substitute checks” are legal equivalents of original checks .

Image Exchange: Digital images of checks are transmitted between banks, enabling faster clearing and settlement.

4.2 Automated Clearing House (ACH) Systems

ACH systems provide clearing services for electronic debit and credit transfers from retail customers .

US ACH Systems

  • FedACH: Operated by the Federal Reserve

  • TCHACH/EPN: Provided by The Clearing House

Key Features

  • Batch processing of electronic payments

  • Settlement typically occurs on the following banking day (T+1)

  • Used for direct deposits, bill payments, B2B payments

  • Low-cost, high-volume processing

ACH Processing Flow

  1. Originator initiates payment instruction

  2. Originating Depository Financial Institution (ODFI) submits batch to ACH operator

  3. ACH operator processes and distributes to Receiving Depository Financial Institution (RDFI)

  4. Settlement: Net obligations calculated and settled

  5. Funds available to receiver

European Equivalents

  • SEPA Direct Debit (SDD): Eurozone ACH

  • STEP2 (EBA Clearing): Pan-European ACH

  • Various national systems (e.g., BACS in UK, SORBNET in Poland)

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