{"id":916,"date":"2026-02-02T09:09:58","date_gmt":"2026-02-02T09:09:58","guid":{"rendered":"https:\/\/sg.blog.razorpay.in\/sg\/blog\/?p=916"},"modified":"2026-02-02T09:09:58","modified_gmt":"2026-02-02T09:09:58","slug":"fast-vs-paynow-vs-giro-key-differences","status":"publish","type":"post","link":"https:\/\/razorpay.com\/sg\/blog\/fast-vs-paynow-vs-giro-key-differences\/","title":{"rendered":"FAST vs. PayNow vs. GIRO: Key Differences for Singapore Businesses"},"content":{"rendered":"<h2><b>Introduction: Navigating Singapore\u2019s Payment &#8220;Rails&#8221;<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Singapore has one of the most advanced digital payment ecosystems in the world. For business owners, the availability of multiple fund transfer methods, <\/span><b>FAST, PayNow, and GIRO, <\/b><span style=\"font-weight: 400;\">provides incredible flexibility. However, each system serves a distinct purpose, operates at a different speed, and carries its own cost structure.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Choosing the wrong method can lead to unnecessary processing fees or, more critically, cash flow delays. Understanding the nuances between these &#8220;payment rails&#8221; is essential for optimizing your financial operations.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This guide provides a definitive comparison of <a href=\"https:\/\/razorpay.com\/sg\/blog\/what-is-fast-in-singapore-a-complete-guide-to-real-time-payments\">FAST<\/a>, PayNow, and GIRO, explaining how they work together and when your business should use each one.<\/span><\/p>\n<div style=\"border-left: 4px solid #007BFF; background: #F0F8FF; padding: 25px; margin: 30px 0; border-radius: 8px; font-family: Arial, sans-serif; text-align: left;\">\n<h3 style=\"margin-top: 0; color: #007bff; font-size: 22px;\">Key Takeaways<\/h3>\n<ul style=\"margin: 15px 0; padding-left: 20px; color: #333; line-height: 1.6;\">\n<li><strong>FAST is the Foundation:<\/strong> A real-time interbank transfer system for amounts up to S$200,000.<\/li>\n<li><strong>PayNow is the Interface:<\/strong> A service that sits on top of the FAST network, allowing transfers via proxies like UENs or mobile numbers.<\/li>\n<li><strong>GIRO is the Batch Processor:<\/strong> Ideal for high-volume, recurring, or non-urgent payments like payroll and utilities.<\/li>\n<li><strong>Speed vs. Cost:<\/strong> FAST and PayNow are instant but can be more expensive per transaction; GIRO takes 1\u20133 days but is the most cost-effective for bulk payouts.<\/li>\n<li><strong>Unified Management:<\/strong> A modern payment platform can integrate all three, providing a single dashboard for reconciliation.<\/li>\n<\/ul>\n<\/div>\n<h2><b>1. FAST (Fast and Secure Transfers)<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">FAST is the underlying real-time electronic funds transfer service that enables instant SGD transfers between participating banks and non-bank financial institutions (NFIs).<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>How it works:<\/b><span style=\"font-weight: 400;\"> You enter the recipient&#8217;s bank name and account number. The funds move instantly.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Speed:<\/b><span style=\"font-weight: 400;\"> Instant (within seconds), available 24\/7, 365 days a year.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Limit:<\/b><span style=\"font-weight: 400;\"> Generally up to S$200,000 per transaction.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Best for:<\/b><span style=\"font-weight: 400;\"> Urgent one-off payments to suppliers or vendors where you have their full bank details.<\/span><\/li>\n<\/ul>\n<h2><b>2. PayNow<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">PayNow is a peer-to-peer and business-to-business (B2B) service that uses the FAST &#8220;rails&#8221; but replaces the bank account number with an easy-to-remember proxy.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>How it works:<\/b><span style=\"font-weight: 400;\"> For businesses, the proxy is typically your <\/span><b>Unique Entity Number (UEN)<\/b><span style=\"font-weight: 400;\">. Customers scan a QR code or enter your UEN to pay.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Speed:<\/b><span style=\"font-weight: 400;\"> Instant (because it uses FAST).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Limit:<\/b><span style=\"font-weight: 400;\"> Dependent on individual bank settings, often aligned with FAST limits.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Best for:<\/b><span style=\"font-weight: 400;\"> E-commerce checkouts, retail point-of-sale, and invoicing, where you want to provide a frictionless experience for the customer.<\/span><\/li>\n<\/ul>\n<h2><b>3. GIRO (General Interbank Recurring Order)<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">GIRO is a legacy system designed for high-volume, automated batch processing. It is not real-time.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>How it works:<\/b><span style=\"font-weight: 400;\"> Payments are processed in &#8220;batches&#8221; at specific times during the day. It supports both Direct Credit (payouts) and Direct Debit (collections).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Speed:<\/b> <b>1 to 3 business days<\/b><span style=\"font-weight: 400;\">. It does not operate on weekends or public holidays.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Limit:<\/b><span style=\"font-weight: 400;\"> Usually no technical limit, but restricted by your bank\u2019s daily corporate limit.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Best for:<\/b><span style=\"font-weight: 400;\"> Monthly payroll, recurring subscription collections, and paying tax to <\/span><a href=\"https:\/\/www.iras.gov.sg\/\" rel=\"nofollow noopener\" target=\"_blank\"><b>IRAS<\/b><\/a><span style=\"font-weight: 400;\"> or making CPF contributions.<\/span><\/li>\n<\/ul>\n<h2><b>Direct Comparison Table<\/b><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>Feature<\/b><\/td>\n<td><b>FAST<\/b><\/td>\n<td><b>PayNow<\/b><\/td>\n<td><b>GIRO<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Processing Speed<\/b><\/td>\n<td><b>Instant<\/b><span style=\"font-weight: 400;\"> (Seconds)<\/span><\/td>\n<td><b>Instant<\/b><span style=\"font-weight: 400;\"> (Seconds)<\/span><\/td>\n<td><b>1 \u2013 3 Business Days<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Availability<\/b><\/td>\n<td><span style=\"font-weight: 400;\">24\/7, 365 Days<\/span><\/td>\n<td><span style=\"font-weight: 400;\">24\/7, 365 Days<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Business Days \/ Banking Hours<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Identifier Used<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Bank &amp; Account Number<\/span><\/td>\n<td><span style=\"font-weight: 400;\">UEN \/ Mobile \/ NRIC<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Bank &amp; Account Number<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Primary Use Case<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Urgent Vendor Payments<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Customer Checkout \/ B2C<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Payroll \/ Recurring Bills<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Setup Effort<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Low<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Low<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High (requires mandate)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Relative Cost<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Moderate<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Moderate<\/span><\/td>\n<td>Lowest<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>The Strategic Choice: Which One Should You Use?<\/b><\/h2>\n<h3><b>Use FAST\/PayNow when:<\/b><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Time is critical:<\/b><span style=\"font-weight: 400;\"> You need to confirm a shipment immediately upon payment.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Customer experience is a priority:<\/b><span style=\"font-weight: 400;\"> You want to reduce friction at an <\/span><b>online checkout<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Low-volume, high-value:<\/b><span style=\"font-weight: 400;\"> You are making a specific payment that requires immediate confirmation.<\/span><\/li>\n<\/ol>\n<h3><b>Use GIRO when:<\/b><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Efficiency is a priority:<\/b><span style=\"font-weight: 400;\"> You are paying 50 employees at once.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Predictability is key:<\/b><span style=\"font-weight: 400;\"> You want to collect monthly fees from customers on the 1st of every month automatically.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Margins are thin:<\/b><span style=\"font-weight: 400;\"> You need the absolute lowest transaction cost for thousands of small payments.<\/span><\/li>\n<\/ol>\n<h2><b>Digital Evolution: eGIRO and Virtual Accounts<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The lines between these systems are blurring thanks to technology:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>eGIRO:<\/b><span style=\"font-weight: 400;\"> Has shortened the <a href=\"https:\/\/razorpay.com\/sg\/blog\/what-is-giro-in-singapore-a-guide-to-automated-business-payments\">GIRO<\/a> mandate setup from 3 weeks to minutes, making it more competitive for modern SaaS businesses.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Virtual Accounts:<\/b><span style=\"font-weight: 400;\"> These are unique numbers assigned to customers that can accept FAST, PayNow, or GIRO payments while providing <\/span><b>automated reconciliation<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<div style=\"background: #F9FBFF; border-left: 4px solid #007BFF; padding: 22px 25px; margin: 30px 0; border-radius: 8px; font-family: Arial, sans-serif; color: #333; line-height: 1.6;\">\n<h3 style=\"margin: 0 0 12px 0; color: #007bff; font-size: 20px; display: flex; align-items: center;\">Did You Know?<\/h3>\n<p style=\"margin: 0; font-size: 16px;\">Because <strong>PayNow uses the FAST infrastructure<\/strong>, if the FAST network experiences downtime (rarely), PayNow services will also be affected. For businesses, this is why having a <strong>redundant payment strategy<\/strong> that includes cards and digital wallets is vital for <strong>100% uptime<\/strong>.<\/p>\n<\/div>\n<div style=\"background: #F0F8FF; padding: 30px; margin: 35px 0; border-radius: 8px; font-family: Arial, sans-serif; text-align: center; border: 1px solid #D6E9FF;\">\n<h2 style=\"margin-top: 0; color: #007bff; font-size: 24px;\">Ready to Scale Your Singapore Business?<\/h2>\n<p style=\"margin: 15px 0; color: #333; font-size: 16px; line-height: 1.6;\">Streamline your financial operations with a unified payment platform designed for the Lion City.<br \/>\nAccept PayNow, cards, and digital wallets effortlessly while keeping your finances reconciled and compliant.<\/p>\n<p><!-- CTA Button --><br \/>\n<a style=\"display: inline-block; margin-top: 20px; background: #007BFF; color: #fff; padding: 14px 28px; border-radius: 6px; text-decoration: none; font-weight: bold; font-size: 16px; box-shadow: 0 3px 6px rgba(0,0,0,0.15);\" href=\"https:\/\/razorpay.com\/sg\/?utm_source=blog&amp;utm_medium=blog-cta&amp;utm_campaign=singapore-article\">Explore Payment Platform Solutions from Razorpay<br \/>\n<\/a><\/p>\n<\/div>\n<h2><b>Conclusion: A Balanced Payment Strategy<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In the competitive Singapore market, there is no single &#8220;best&#8221; payment method. The most successful businesses utilize a hybrid approach: <\/span><b>PayNow<\/b><span style=\"font-weight: 400;\"> for instant customer collections, <\/span><b>FAST<\/b><span style=\"font-weight: 400;\"> for urgent vendor settlements, and <\/span><b>GIRO<\/b><span style=\"font-weight: 400;\"> for the stable, cost-effective automation of recurring overheads. By integrating these methods through a unified <\/span><a href=\"https:\/\/razorpay.com\/sg\/payment-platform\/\"><b>payment platform<\/b><\/a><span style=\"font-weight: 400;\">, you eliminate manual reconciliation and ensure your financial speed matches the speed of your business growth.<\/span><\/p>\n<h2><b>Frequently Asked Questions (FAQs)<\/b><\/h2>\n<h3><b>1. Is PayNow more secure than FAST?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Both are equally secure as they operate within the regulated Singapore interbank network. PayNow is often considered &#8220;safer&#8221; for the sender simply because it reduces the risk of typing a wrong bank account number\u2014instead, you verify the recipient&#8217;s name linked to the UEN or mobile number.<\/span><\/p>\n<h3><b>2. Can I use FAST for international payments?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">No. FAST is strictly for <\/span><b>Singapore Dollar (SGD)<\/b><span style=\"font-weight: 400;\"> transfers between participating institutions in Singapore. For international needs, you would use SWIFT or a specialized cross-border payment provider.<\/span><\/p>\n<h3><b>3. Why did my GIRO payment fail?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">GIRO payments often fail due to insufficient funds in the account at the time of batch processing. Unlike FAST, which checks for funds instantly, GIRO may attempt a deduction that gets rejected by the bank, often resulting in a small &#8220;failed GIRO&#8221; fee.<\/span><\/p>\n<h3><b>4. Do I need a separate UEN for PayNow?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">No. Your business&#8217;s existing UEN (Unique Entity Number) issued by <\/span><b>ACRA<\/b><span style=\"font-weight: 400;\"> serves as your PayNow identifier. You simply need to register it with your bank to link it to your corporate account.<\/span><\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is PayNow more secure than FAST?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both are equally secure as they operate within the regulated Singapore interbank network. PayNow is often considered \\\"safer\\\" for the sender simply because it reduces the risk of typing a wrong bank account number\u2014instead, you verify the recipient's name linked to the UEN or mobile number.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use FAST for international payments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. FAST is strictly for Singapore Dollar (SGD) transfers between participating institutions in Singapore. For international needs, you would use SWIFT or a specialized cross-border payment provider.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why did my GIRO payment fail?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"GIRO payments often fail due to insufficient funds in the account at the time of the batch processing. Unlike FAST, which checks for funds instantly, GIRO may attempt a deduction that gets rejected by the bank, often resulting in a small \\\"failed GIRO\\\" fee.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need a separate UEN for PayNow?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Your business's existing UEN (Unique Entity Number) issued by ACRA serves as your PayNow identifier. You simply need to register it with your bank to link it to your corporate account.\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction: Navigating Singapore\u2019s Payment &#8220;Rails&#8221; Singapore has one of the most advanced digital payment ecosystems in the world. For business owners, the availability of multiple fund transfer methods, FAST, PayNow, and GIRO, provides incredible flexibility. However, each system serves a distinct purpose, operates at a different speed, and carries its own cost structure. Choosing the [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-916","post","type-post","status-publish","format-standard","hentry","category-payments"],"_links":{"self":[{"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/posts\/916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/comments?post=916"}],"version-history":[{"count":1,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/posts\/916\/revisions"}],"predecessor-version":[{"id":917,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/posts\/916\/revisions\/917"}],"wp:attachment":[{"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/media?parent=916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/categories?post=916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/razorpay.com\/sg\/blog\/wp-json\/wp\/v2\/tags?post=916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}