Payment rails are the infrastructure that enables the transfer of money between banks, financial institutions, and payment service providers. For businesses, choosing the right payment rail depends on factors like speed, cost, geography, and customer satisfaction.
RTGS (Real-Time Gross Settlement) and RTP (Real-Time Payments) are two prominent systems facilitating instant money transfers. Lightspark is moving past these traditional payment rails by developing the 'Money Grid,' a global, open network powered by Bitcoin and the Lightning 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 RTGS and RTP
How RTGS Works
RTGS (Real-Time Gross Settlement) operates by allowing instantaneous transfer of funds and securities, settling each transaction individually without netting debits and credits. Managed by central banks, RTGS systems use secure, real-time electronic communication networks. The typical transaction flow involves a customer initiating a large-value transfer, the sending bank submitting the payment to the RTGS system, and the central bank adjusting the accounts electronically. The receiving bank gets the funds immediately, making them available to the beneficiary. Once settled, transactions are final and irrevocable, enhancing financial stability and reducing settlement risk.
Strengths and Limitations of RTGS
Strengths
- RTGS allows for instantaneous settlement of payments, ensuring funds are transferred immediately.
- Once transactions are settled in RTGS, they are final and irrevocable, reducing the risk of unsettled transactions.
- RTGS systems are managed by central banks, providing high levels of security and oversight.
Limitations
- RTGS can incur higher costs compared to other payment systems that bundle and net payments.
- It is generally used for large-value transactions and may not be cost-effective for smaller or retail payments.
- Once a transaction is settled in RTGS, it cannot be reversed, which can be a limitation in cases of error.
How RTP Works
RTP (Real-Time Payments) operates by transferring funds instantly between bank accounts in the U.S., available 24/7/365. Managed by The Clearing House, it uses the ISO-20022 standard for rich data attachment. Transactions are initiated as credit payments, with the sender's bank sending a payment message to the RTP network. The Clearing House processes and routes this message to the recipient's bank, which credits the recipient's account instantly. The entire process is completed in real time, making all payments final and irreversible. RTP supports attaching additional data like invoice numbers, enhancing transaction context and efficiency.
Strengths and Limitations of RTP
Strengths
- RTP offers instantaneous fund transfers, providing immediate settlement and availability of funds.
- It operates 24/7/365, including weekends and holidays, ensuring continuous availability.
- RTP supports attaching rich data to payments, enhancing transaction context and efficiency.
Limitations
- RTP is currently supported by a limited number of banks in the U.S., restricting its reach.
- There is a transaction limit of $1 million per payment, which may be insufficient for very large transactions.
- All RTP payments are final and irreversible, posing a risk in cases of error or fraud.
RTGS and RTP Compared
Transaction Speed
RTGS systems, such as FedNow, process transactions instantly, ensuring immediate settlement. Similarly, RTP also offers instantaneous fund transfers, making funds available in real time. Both systems excel in speed, but Lightspark's infrastructure on the Lightning Network promises even faster, real-time global transactions.
Fees
RTGS transactions often incur higher, fixed fees due to their use for high-value payments. RTP, on the other hand, may have percentage-based fees, which can vary depending on the transaction amount. Lightspark emphasizes low-cost transactions, reducing fees significantly compared to traditional systems.
Cross-Border Capabilities
RTGS systems are typically used for domestic transactions, with limited cross-border capabilities. RTP also faces challenges with international payments, although some RTP networks like SWIFT support cross-border transactions. Lightspark's global Money Grid facilitates seamless, low-cost cross-border payments, leveraging Bitcoin's decentralized network.
Security Protocols
RTGS systems, such as FedNow, employ robust security measures like encrypted data, MFA, and role-based access controls. RTP systems use tokenization and fraud prevention mechanisms. Lightspark enhances security through the decentralized nature of Bitcoin and the Lightning Network, ensuring secure, real-time transactions.
Operational Hours
RTGS systems generally operate during business hours, while RTP is available 24/7/365, including weekends and holidays. Lightspark's infrastructure is "always on," enabling continuous, real-time global payments, surpassing the availability of both RTGS and RTP systems.
How RTGS And RTP Are Used
High-Value Corporate Payments
RTGS is ideal for high-value corporate payments due to its real-time, irrevocable settlement. RTP can also handle these transactions but is limited by a $1 million cap. Lightspark offers instant, low-cost transfers without value limits, making it a superior choice for large-scale corporate payments.
Person-to-Person Transfers
RTP excels in person-to-person transfers with its 24/7 availability and instant settlement. RTGS is less suitable due to higher costs and operational hours. Lightspark enhances this use case by providing seamless, low-cost, and real-time transfers globally, surpassing RTP's domestic limitations.
Business-to-Business Transactions
Both RTGS and RTP support business-to-business transactions, with RTP offering more flexibility for smaller amounts. However, Lightspark's infrastructure allows for instant, low-cost, and cross-border payments, making it a more efficient solution for businesses operating internationally.
Government Payments
RTGS is often used for large government payments due to its security and finality. RTP can handle smaller government disbursements efficiently. Lightspark's decentralized network ensures secure, real-time payments, providing a robust alternative for both large and small government transactions.
Time for a New Standard

Lightspark offers a global payments infrastructure built on Bitcoin, enabling real-time, low-cost, and secure money movement across borders, surpassing the limitations of traditional RTGS and RTP systems.
- Built on Bitcoin: Lightspark’s infrastructure leverages Bitcoin’s open, decentralized foundation.
- Instant Settlement: The platform ensures real-time, global money movement for Bitcoin, fiat, and stablecoins.
- Lower fees: Lightspark provides low-cost transactions, eliminating intermediaries and hidden fees.
- Cross-border security by default: The decentralized nature of Bitcoin and the Lightning Network ensures secure, real-time cross-border payments.
A Modern Infrastructure
For businesses looking to transcend traditional payment systems like RTGS and RTP, Lightspark offers the following solutions:
- Wallets: Build feature-rich digital wallets with flexible custody options, supporting Bitcoin, Lightning Network, stablecoins, and domestic payment rails.
- Digital Banks: Connect to the 'Money Grid' for real-time, global payments, enabling digital banks to expand into new markets and offer 24/7/365 transactions.
- Exchanges: Easily connect to the Bitcoin Network, offering instant, low-cost Bitcoin transfers with built-in compliance tools.
- Stablecoins: Launch stablecoins on Bitcoin instantly with Spark, providing fast and cheap payment experiences integrated with Bitcoin and Lightning.
Don’t just choose between two outdated options—upgrade to a payment rail built for the internet age. Lightspark can help you achieve real-time, low-cost global payments. Learn more or book a demo to see how emerging technologies and regulations are shaping the future of payments.