Automated Clearing House (ACH) networks provide an efficient electronic mechanism for processing batch financial transactions, yet they come with several distinct disadvantages. One primary drawback is the processing speed; unlike real-time payment rails, traditional ACH transfers typically take one or multiple business days to settle, which can cause delays for urgent fund transfers. Additionally, ACH transactions are subject to transaction limits and cut-off times imposed by financial institutions, restricting operational flexibility. Another critical concern involves the risk of fraud and unauthorized debits. Although mechanisms exist to reverse fraudulent or erroneous entries, recovering funds can become a complex administrative challenge. Furthermore, cross-border payments are generally unsupported or highly inefficient through standard domestic ACH networks, requiring alternative costly wire systems. Finally, technical downtime or system maintenance windows can occasionally disrupt payment processing workflows for businesses dependent on predictable liquidity cycles.