Payment rails are the infrastructure that enables the transfer of money between banks, payment service providers, and other financial institutions. For businesses, selecting the appropriate payment rail hinges on factors such as speed, cost, geography, and customer satisfaction.
Fedwire and RTGS (Real-Time Gross Settlement) are prominent examples of payment rails that facilitate high-value, real-time transactions. However, Lightspark aims to transcend these traditional systems by leveraging Bitcoin’s decentralized foundation to create a more efficient global payments network.
The Payment Rail Landscape
Payment rails are crucial for transferring money between parties. However, current systems can be slow, fragmented, and costly, often leading to inefficiencies and higher expenses for businesses and consumers alike.
Understanding Fedwire and RTGS
How Fedwire Works
Fedwire is a real-time gross settlement system operated by the Federal Reserve Banks for electronic U.S. dollar payments. It processes transactions individually and immediately, ensuring finality and irrevocability. Participating institutions, including U.S. depository financial institutions and certain foreign banks, initiate transactions online or by phone. The Federal Reserve holds accounts for both the sender and receiver, settling each transaction instantly. The system operates Monday through Friday, 9 p.m. ET (prior day) to 7 p.m. ET, and charges fees to recoup costs. Fedwire's robust and reliable network has been in operation for over 100 years, processing trillions of dollars daily.
Strengths and Limitations of Fedwire
Strengths
- Fedwire processes transactions individually and immediately, ensuring finality and irrevocability.
- The system is highly reliable and robust, with a history spanning over 100 years.
- Fedwire handles large, same-day transactions, making it suitable for high-value payments among banks, businesses, and government agencies.
Limitations
- Fedwire is limited to depository financial institutions in the U.S. and certain foreign banks or government groups with Fed accounts.
- The system operates only Monday through Friday, from 9 p.m. ET on the prior calendar day to 7 p.m. ET, and is closed on all federal holidays.
- Both participants in a transaction pay a small fee, as mandated by law to recoup system costs.
How RTGS Works
RTGS (Real-Time Gross Settlement) is a funds transfer system that allows for the instantaneous transfer of money and/or securities. Managed by central banks, it processes transactions individually and in real-time. When a transaction is initiated, the sending bank submits the payment to the RTGS system, which debits the sender's account and credits the receiver's account electronically. The receiving bank is notified immediately, and the transaction is final and irrevocable. RTGS systems use secure, real-time electronic communication networks, ensuring continuous operation and data integrity. Examples include the U.S. Fedwire and the UK's CHAPS.
Strengths and Limitations of RTGS
Strengths
- RTGS allows for the continuous, real-time settlement of payments on an individual order basis, ensuring transactions are settled immediately as they are received.
- Once completed, RTGS payments are final and irrevocable, reducing the risk of unsettled transactions.
- RTGS systems are managed and run by central banks, providing a high level of oversight and reliability.
Limitations
- RTGS can often incur higher charges than processes that bundle and net payments, making it potentially more expensive for users.
- RTGS is generally employed for large-value interbank funds transfers and may not be suitable or available for smaller, retail transactions.
- RTGS systems require robust technological infrastructure and are typically operated by a country’s central bank, which may limit accessibility in less developed financial systems.
Fedwire and RTGS Compared
Transaction Speed
Both Fedwire and RTGS systems offer real-time transaction processing. Fedwire settles transactions individually and immediately, ensuring finality upon initiation. Similarly, RTGS systems process payments instantaneously, with settlement occurring as soon as the transaction is received. However, Lightspark leverages the Lightning Network to provide even faster, real-time global money movement, making transactions as quick as sending an email.
Fees
Fedwire charges fees to both participants in a transaction to recoup operational costs, as mandated by law. RTGS fees vary by institution and country, often being higher than those for bundled payment processes. In contrast, Lightspark emphasizes low-cost transactions, offering seamless, low-cost payments across borders without hidden fees.
Cross-Border Capabilities
Fedwire is primarily limited to U.S. dollar transactions among U.S. institutions and U.S. branches of foreign banks with Fed accounts. RTGS systems are generally managed by national central banks and are typically limited to domestic transfers. Lightspark, however, enables seamless, low-cost, and reliable cross-border payments, supporting 94+ countries and 75+ currencies.
Security Protocols
Both Fedwire and RTGS systems are considered robust and reliable, with high levels of oversight and security. However, specific security protocols are not detailed. Lightspark, built on Bitcoin’s decentralized foundation, offers strong security properties, minimizing fraud risk by reducing the time sensitive information is exposed.
Operational Hours
Fedwire operates Monday through Friday, from 9 p.m. ET on the prior calendar day to 7 p.m. ET, and is closed on federal holidays. RTGS systems' operational hours vary by country, with some available 24/7. Lightspark’s infrastructure is described as "always on," supporting continuous, uninterrupted operation for global payments.
How Fedwire And RTGS Are Used
High-Value Interbank Transfers
Fedwire is ideal for large, same-day transactions among U.S. financial institutions, ensuring immediate and irrevocable settlement. RTGS systems offer similar benefits globally but can be costly. Lightspark, leveraging the Lightning Network, provides instant, low-cost transfers across borders, making it a superior choice for international high-value transactions.
Corporate Treasury Operations
Fedwire supports large-value payments for corporate treasury needs within the U.S., while RTGS systems handle similar transactions internationally. Lightspark excels by offering 24/7 operations and low-cost, real-time global payments, reducing float and operational costs for multinational corporations.
Government Payments
Fedwire is used for U.S. government payments, including tax settlements, due to its reliability and immediate settlement. RTGS systems serve similar functions in other countries. Lightspark's always-on infrastructure and low-cost transactions make it advantageous for governments needing efficient, cross-border payment solutions.
Crypto Exchange Operations
Fedwire and RTGS are less suited for the fast-paced needs of crypto exchanges, which require instant, low-cost transfers. Lightspark, integrated with the Lightning Network, offers instant bitcoin transfers, managed liquidity, and built-in compliance, making it the optimal choice for crypto exchanges.
Time for a New Standard

Lightspark is a global payments platform that leverages Bitcoin’s decentralized foundation to offer real-time, secure, and low-cost money movement across borders, surpassing the limitations of traditional systems like Fedwire and RTGS.
- Built on Bitcoin: Lightspark’s infrastructure is built on Bitcoin’s open, decentralized foundation, enabling open, borderless, and efficient money movement.
- Instant Settlement: The platform enables real-time, global money movement, ensuring instant settlement for both Bitcoin and fiat transactions.
- Lower fees: Lightspark offers payments at a fraction of today’s costs, with no hidden fees, leveraging Bitcoin and the Lightning Network for significant cost savings.
- Cross-border security by default: The use of Bitcoin’s decentralized, open network provides inherent security for cross-border transactions, ensuring seamless, low-cost, and reliable payments.
A Modern Infrastructure
For businesses looking to transition from traditional payment systems like Fedwire and RTGS, Lightspark offers the following solutions:
- Wallets: Enables businesses and developers to build feature-rich digital wallets with flexible custody options, supporting real-time access to Bitcoin, Lightning, stablecoins, and domestic payment rails.
- Digital Banks: Connects digital banks to the 'Money Grid,' allowing them to expand into new markets, move money 24/7, and stay competitive with real-time, low-cost payments.
- Exchanges: Provides cryptocurrency exchanges with seamless integration to the Bitcoin Network, enabling instant Bitcoin transfers, reducing operational friction, and offering built-in compliance tools.
- Stablecoins: Through Spark, businesses can create, distribute, and monetize stablecoins on the Bitcoin network, offering fast, cheap, and borderless payment solutions.
Emerging technologies and evolving regulations are reshaping the future of payments. Lightspark offers a modern solution for real-time, low-cost global payments. Don’t just choose between two outdated options—upgrade to a payment rail built for the internet age. Learn more or book a demo.