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- en.wikipedia.org › wiki › Unified_Payments_InterfaceEN
Unified Payments Interface - Wikipedia
[Jump to content](https://en.wikipedia.org/wiki/Unified_Payments_Interface#bodyContent) From Wikipedia, the free encyclopedia Indian instant payment system For the American news agency, see [United Press International](https://en.wikipedia.org/wiki/United_Press_International). | [](https://en.wikipedia.org/wiki/File:UPI_logo.svg) | | Product type | [instant](https://en.wikipedia.org/wiki/Instant_payment) [payment system](https://en.wikipedia.org/wiki/Payment_system) | | Owner | [National Payments Corporation of India](https://en.wikipedia.org/wiki/National_Payments_Corporation_of_India) | | Country | [India](https://en.wikipedia.org/wiki/India) | | Introduced | 11April 2016;10 years ago(2016-04-11) | | Website | [upichalega.com](https://upichalega.com/) | Unified Payments Interface **Unified Payments Interface** ( **UPI**) is an Indian [instant payment](https://en.wikipedia.org/wiki/Instant_payment) system and [protocol](https://en.wikipedia.org/wiki/Communication_protocol) developed by the [National Payments Corporation of India](https://en.wikipedia.org/wiki/National_Payments_Corporation_of_India) (NPCI) in April 11th 2016. The interface facilitates inter-bank [peer-to-peer](https://en.wikipedia.org/wiki/Peer-to-peer_transaction) (P2P) and person-to-merchant (P2M) transactions. [[1]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:5-1)[[2]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:9-2) It is used on mobile devices to instantly transfer funds between two bank accounts using only a unique UPI ID. It runs as an [open source](https://en.wikipedia.org/wiki/Open_source) application programming interface (API) on top of the [Immediate Payment Service](https://en.wikipedia.org/wiki/Immediate_Payment_Service) (IMPS),[[3]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-3)[[4]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-4)[[5]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-5)[[6]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-6) and is regulated by the [Reserve Bank of India](https://en.wikipedia.org/wiki/Reserve_Bank_of_India) (RBI). [[8]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-lat1-8)[[9]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-9) In 2021, UPI in India had over 500 million active users. [[10]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-10)[[11]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-11) In the month of August 2025, 20 billion UPI transactions worth ₹ 25 trillion (about US$293 billion) were processed by the UPI system, processing an average of nearly 7,500 transactions every second. UPI is the largest [real-time payment](https://en.wikipedia.org/wiki/Real-time_payment) system in the world. it handles more than 640 million transactions every day, compared to [Visa's](https://en.wikipedia.org/wiki/Visa_Inc.) 639 million. [[14]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:1-14)[[15]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:2-15) As of 2025, UPI accounts for 84% of digital payments in India. [[16]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-16) On 25th August 2026, UPI completed 10 years of functioning and was responsible for transactions worth ₹ 314 Trillion in FY 2025-26 representing an increase of more than 4000-fold since the year of its inception. [[17]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-17)[[18]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-18) ## History [[14]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:1-14) [[20]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-20)[[21]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:4-21) UPI works on a four-pillar push-pull interoperable model where there will be a remitter/beneficiary front-end PSP ( [payment service provider](https://en.wikipedia.org/wiki/Payment_service_provider)) and a remitter/beneficiary back-end bank that settles the monetary transaction for the users. [[14]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:1-14)[[15]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:2-15) [[23]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-23) [[24]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-24) [[27]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:6-27)[[28]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-28) [[29]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:7-29) To make UPI economically feasible for payment companies, RBI is considering a [merchant discount rate](https://en.wikipedia.org/wiki/Merchant_discount_rate) (MDR) on future UPI transactions. [[30]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-30) In its first monetary policy for the 2022–23 financial year, RBI proposed a cardless cash withdrawal facility from ATMs using UPI-based QR codes. [[32]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-32) [[33]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-33) On 8 August 2024, RBI suggested raising the UPI tax payment ceiling from ₹1 lakh to ₹5 lakh. [[34]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-34) Over 640 million transactions are handled via UPI per day, compared to 639 million by Visa. [[37]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-37) ### UPI 2.0 Users were also able to pre-authorise transactions by issuing a mandate for a specific merchant. This version also included a feature to view and store an invoice for each transaction. [[41]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-41) From 15 March 2022, the government removed the need for debit cards for UPI registration. [[43]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-43) Customers can now make credit card payments using UPI, in the absence of a physical card. [[44]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-44) NPCI developed a real-time feature that will reduce the 24-hour time period taken by banks to unblock funds over time-out or transaction declines to 30 seconds. [[46]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:8-46) On 7 December 2022, RBI announced that UPI will upgrade from single-block-single to single-block-multiple debit for recurring transactions and investments in securities. This feature is expected to help users block funds for specific purposes and release them when needed. [[47]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-47) Compared to the industry average of five to six business days, the reimbursement will be initiated within 2 minutes. [[50]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-50) It will operate on the opposite principle to UPI ATMs'. The RBI and the NPCI are collaborating with the company to explore the feasibility of permitting deposits based on UPI. [[53]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-53)[[54]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-54) [[55]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-55)[[56]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-56) International mobile numbers of [ICICI Bank](https://en.wikipedia.org/wiki/ICICI_Bank)'s [non-resident Indian](https://en.wikipedia.org/wiki/Non-resident_Indian) clients can be used to make UPI payments in India. In ten nations—the United States, United Kingdom, United Arab Emirates, Canada, Singapore, Australia, Hong Kong, Oman, Qatar, and Saudi Arabia—the bank provides this service. [[57]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-57) ### UPI 3.0 [[65]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-65) #### UPI Circle In its monetary policy announcement in August 2024, the RBI implemented the delegated payments feature through UPI. By doing this, a person (the primary user) could grant permission to another person (the secondary user) to utilize their bank account to perform UPI transactions. The primary user would choose the transaction limit. [[72]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-72) Full delegation, in which the primary user gives the secondary user the authority to start and finish transactions up to specified expenditure limitations without needing additional permission. Additionally, there is partial delegation, in which the primary user must authenticate and complete the payment using their UPI PIN before the secondary user may start a transaction. With UPI Circle, one can use platforms for collaboration or [gig economies](https://en.wikipedia.org/wiki/Gig_economy) to create micro-communities where people can pool resources or settle payments in real time. [[71]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:11-71) NPCI guidelines for UPI ecosystem members,[[73]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-:10-73) ## Market share | Year | No. of Payment Partners on UPI | Transaction volume (in mn) | INR value (in mn) | USD value (in bn) | |-|-|-|-|-| | **2026** | 684 | | | | | 2024 | 641 | 139,995.98 | 246,825,208.1 | 2,850.93 | | 2020 | 207 | 18,880.89 | 33,877,447.2 | 457.19 | | 2019 | 144 | 10,787.54 | 18,366,381.8 | 247.86 | | 2018 | 129 | 3,746.32 | 5,857,104.5 | 79.04 | | 2017 | 67 | 418.8 | 570,208.7 | 7.7 | | 2016 | 35 | 2.65 | 8,930.7 | 0.12 | ## Acceptance ### India (Domestic) [[170]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-170) NPCI is planning to link UPI with standalone mobile wallets so that users can transfer money from one provider to another one which until now is restricted due to use of closed source technology. There is also provision for off-line UPI payment through the use of [near field communication](https://en.wikipedia.org/wiki/Near-field_communication) (NFC). [[172]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-172) On 20 April 2020, Google added support for UPI payment in India to buy membership of [YouTube Premium](https://en.wikipedia.org/wiki/YouTube_Premium) and [YouTube Music](https://en.wikipedia.org/wiki/YouTube_Music) either directly through a website or on the mobile application. [[179]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-179) As per April 2021 RBI Monetary Policy Committee directive, after 31 March 2022, all the " [know your customer](https://en.wikipedia.org/wiki/Know_your_customer)" (KYC)-compliant [digital wallets](https://en.wikipedia.org/wiki/Digital_wallet) will become interoperable by using UPI system. Due to high usage, [Samsung Electronics](https://en.wikipedia.org/wiki/Samsung_Electronics) integrated UPI [barcode scanner](https://en.wikipedia.org/wiki/Barcode_reader) directly into mobile camera application for faster payment. [[191]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-191) NPCI has integrated [Kendriya Vidyalaya Sangathan](https://en.wikipedia.org/wiki/Kendriya_Vidyalaya_Sangathan) with the [Bharat Bill Payment System](https://en.wikipedia.org/wiki/Bharat_Bill_Payment_System), allowing pupils to pay their school fees with UPI. Additionally, [Kolkata Metro Green Line](https://en.wikipedia.org/wiki/Kolkata_Metro_Green_Line) stations also have UPI facility.[[193]](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_note-193) [Kolkata Metro Orange Line](https://en.wikipedia.org/wiki/Kolkata_Metro_Orange_Line) were made UPI enabled from July 2024. ## References 9. [↑](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_ref-9)[[https://eacpm.gov.in/wp-content/uploads/2026/03/Financial-Inclusion-as-a-Path-to-Equality-Lessons-from-India.pdf](https://eacpm.gov.in/wp-content/uploads/2026/03/Financial-Inclusion-as-a-Path-to-Equality-Lessons-from-India.pdf)](https://eacpm.gov.in/wp-content/uploads/2026/03/Financial-Inclusion-as-a-Path-to-Equality-Lessons-from-India.pdf) UPI transactions hits record high 18. [↑](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_ref-18)["10 years of UPI: 66 crore transactions a day and other figures that stand out - CNBC TV18"](https://www.cnbctv18.com/photos/india/upi-ten-years-india-digital-payments-transaction-growth-npci-real-time-payments-19976236.htm). _CNBCTV18_. 25 August 2026. Retrieved 25 August 2026. 20. [↑](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_ref-20)["UPI Product Overview"](https://www.npci.org.in/what-we-do/upi/product-overview). National Payments Corporation of India. Retrieved 16 March 2026. 240. [↑](https://en.wikipedia.org/wiki/Unified_Payments_Interface#cite_ref-240)["India-Israel sign pact to link UPI systems in major digital payments push"](https://www.moneycontrol.com/world/india-israel-sign-pact-to-link-upi-systems-in-major-digital-payments-push-know-where-else-the-platform-works-article-13844648.html). _Moneycontrol_. 26 February 2026. Retrieved 26 February 2026.
- redcompasslabs.com › insights › what-is-upi-indias-instant-payment-scheme-explainedEN
What is UPI? India's instant payment scheme explained
It is an instant payments system developed by the National Payment Council of India, which facilitates Person to Person (P2P) and Person to business (P2M) ...
- youtube.com › watchEN
Will you soon have to pay to use UPI? Govt explains new MDR plan
Will you soon have to pay to use UPI? The government has clarified that UPI transactions for citizens will remain free, while the vast ...
- stripe.com › resources › more › unified-payments-interface-upiEN
What is Unified Payments Interface (UPI)? - Stripe
1. [Introduction](https://stripe.com/resources/more/unified-payments-interface-upi#introduction) 2. [What is UPI?](https://stripe.com/resources/more/unified-payments-interface-upi#what-is-upi) 4. [How does UPI work?](https://stripe.com/resources/more/unified-payments-interface-upi#how-does-upi-work) 1. [How to send and receive payments](https://stripe.com/resources/more/unified-payments-interface-upi#how-to-send-and-receive-payments) 13. [How do businesses accept UPI payments?](https://stripe.com/resources/more/unified-payments-interface-upi#how-do-businesses-accept-upi-payments) 1. [QR code payments](https://stripe.com/resources/more/unified-payments-interface-upi#qr-code-payments) 14. [App-to-app payments](https://stripe.com/resources/more/unified-payments-interface-upi#app-to-app-payments) Unified Payments Interface (UPI) changed how money moves in India. Below, we’ll explain how UPI works, why it scaled so quickly, and what it can do for businesses. ## What is UPI? Unified Payments Interface is India’s [real-time](https://stripe.com/resources/more/real-time-payments-explained) payment system. UPI moves money instantly between bank accounts via a mobile device. UPI connects hundreds of Indian banks through one interface. With a [UPI app](https://www.npci.org.in/what-we-do/upi/3rd-party-apps) such as PhonePe, Google Pay, Paytm, or Amazon Pay, you can send money from your bank account to another account as long as the owner of the second account has a UPI ID (also called a virtual payment address or VPA). - **Instant transfers 24/7:** Funds move in real time from one bank account to another. - **No fees:** UPI payments are free for everyday users. Businesses don’t pay fees, either, because of a government-backed zero merchant discount rate (MDR) policy (though there have been [calls to begin charging large businesses](https://www.cnbctv18.com/business/payments-council-india-mdr-upi-rupay-transactions-19578510.htm)). - **PIN-based security:** Every transaction is authorized by a secure PIN set by the user. UPI uses two-factor authentication and doesn’t expose account details to the other party. ## How does UPI work? Here’s how UPI works: ### How to send and receive payments To get started with UPI payments, you’ll need a VPA, commonly called a UPI ID. This is usually in the format name@bank or mobilenumber@provider. This ID links to your bank account and is used to send and receive money via UPI. UPI supports multiple ways to initiate payments: ### Settlement timing UPI works 24/7, including weekends and holidays. Once a payment is authorized, the UPI switch clears and settles the transaction instantly between the bank accounts. ### Interoperability UPI was designed as an open network. [More than 550 Indian banks](https://www.europeanpaymentscouncil.eu/news-insights/insight/upi-revolutionising-real-time-digital-payments-india) are integrated into one real-time switch operated by the National Payments Corporation of India (NPCI). That switch lets a user with an account at one bank send money to someone with an account at another bank without issue. Whether you use Google Pay, PhonePe, or a bank’s own app, all of them operate on the same UPI infrastructure. Any user can pay any other user, regardless of which app or bank either party uses, and businesses can accept UPI no matter which app the customer uses. ### Security All UPI transactions require a linked bank account and a UPI PIN set by the user. Banks verify the request and the PIN before funds are moved. Because users never have to share sensitive account numbers or card details, the risk exposure is low. UPI minimizes business-side liability. The business never sees the user’s bank information, and there’s no need to store or process payment credentials. ## How do businesses accept UPI payments? ### Payment links - [<span data-js-target="MoreArticlesSection.label"></span>](about:blank#) - Something went wrong. Please try again or contact support.
- linkedin.com › posts › jatinbansaldevops_devops-upi-repost-activity-7349624240431652865-8_9JEN
How UPI Works: A Simple Example with Ravi and Priya - LinkedIn
From Oct 4, cheques deposited during business hours will clear the same day. By Jan 2026, banks will have just 3 hours to confirm payments.
- razorpay.com › blog › what-is-upi-and-how-it-worksEN
What is UPI?: Unified Payments Interface Features and How UPI ...
Share [Share on Facebook](https://www.facebook.com/sharer.php?u=https%3A%2F%2Frazorpay.com%2Fblog%2Fwhat-is-upi-and-how-it-works%2F) [Share on Twitter](https://twitter.com/intent/tweet?url=https%3A%2F%2Frazorpay.com%2Fblog%2Fwhat-is-upi-and-how-it-works%2F&text=What%20is%20UPI%3F%3A%20Unified%20Payments%20Interface%20Meaning%2C%20Features%20%26%20Benefits) [LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Frazorpay.com%2Fblog%2Fwhat-is-upi-and-how-it-works%2F) [Email](mailto:?subject=What%20is%20UPI%3F%3A%20Unified%20Payments%20Interface%20Meaning%2C%20Features%20%26%20Benefits&body=https%3A%2F%2Frazorpay.com%2Fblog%2Fwhat-is-upi-and-how-it-works%2F) UPI, or Unified Payments Interface, is a real-time digital payment system that allows users to send money, pay bills, and manage accounts through one app. This article explains what UPI is, how it works, and its key features, helping you understand its role in simplifying digital payments. Table of Contents Toggle ## What is Unified Payments Interface (UPI) in Banking? The full form of UPI is Unified Payments Interface, a real-time payment system developed by the [National Payments Corporation of India](https://razorpay.com/learn/national-payments-corporation-of-india-services/) (NPCI) that facilitates instant money transfers between bank accounts via smartphones. UPI enables users to send and receive money, pay bills, and make online purchases seamlessly through a single mobile app. UPI eliminates the need to enter detailed bank information for each transaction, simplifying payments through [QR codes](https://razorpay.com/learn/what-goes-behind-a-qr-code/), [virtual payment addresses](https://razorpay.com/learn/what-is-virtual-payment-address-vpa/) (VPAs), or UPI-registered mobile numbers. UPI works by leveraging existing systems, such as [Immediate Payment Service](https://razorpay.com/learn/what-is-imps/) (IMPS) and Aadhaar Enabled Payment System (AEPS), to ensure seamless [payment settlement](https://razorpay.com/blog/what-is-a-payment-settlement/) between bank accounts. _**Related Read: [What is UPI Lite? How Does it Work, and its Benefits](https://razorpay.com/blog/what-is-upi-lite/)**_ ## How Unified Payments Interface (UPI) Payment Works in India? UPI operates on a simple yet effective framework that streamlines digital transactions. Here’s how it works: ## **UPI Transaction Flow** The UPI transaction flow outlines the steps involved in processing payments, whether initiated by the sender (push) or requested by the recipient (pull). Understanding this flow helps clarify how seamless and secure transactions occur within the UPI ecosystem. ## **Participants in UPI** To understand how UPI transactions work, it’s essential to recognize the key participants involved: ### **1. Payer App/Payment Service Provider (PSP)** The journey begins with the payer app, such as Google Pay, PhonePe, or Paytm. Users initiate transactions by entering the recipient’s details and transaction amount. ## **UPI Security and Data Protection Measures** ### **Leveraging Existing Payment Systems** UPI relies on the existing [National Electronic Funds Transfer](https://razorpay.com/learn/neft/) (NEFT), [Real-Time Gross Settlement](https://razorpay.com/learn/rtgs/) (RTGS), and Immediate Payment Service (IMPS) systems for settlements. These established [digital payment systems](https://razorpay.com/learn/digital-payments-india-definition-methods-importance/) serve as the backbone for UPI, facilitating the seamless transfer of funds between banks and ensuring secure and timely transactions. ## **Benefits of UPI for Customers** - **Payment Versatility** ## **What is UPI 2.0?** UPI 2.0 represents the latest iteration of this revolutionary payment system, bringing with it a host of enhancements and new features. UPI 2.0 builds upon the foundation laid by its predecessor, UPI 1.0, to further simplify and enrich the digital payment experience.
- blog.orbitremit.com › what-is-upi-india-guideEN
What Is UPI? India's Real-Time Payment System Explained
UPI stands for Unified Payments Interface — a real-time payment system developed by the National Payments Corporation of India (NPCI) and ...
- investopedia.com › terms › u › unified-payment-interface-upi.aspEN
Unified Payments Interface (UPI): How It Works and Its Benefits
- [Unified Payments Interface (UPI)](https://www.investopedia.com/terms/u/unified-payment-interface-upi.asp#toc-what-is-a-unified-payments-interface-upi) - [Mechanics of UPI Transactions](https://www.investopedia.com/terms/u/unified-payment-interface-upi.asp#toc-how-upi-transactions-work) :max_bytes(150000):strip_icc():format(webp)/Unified-payment-interface-upi_final-76629e7fb7bb4bbca0068eabf39a78ea.png) UPI is used on mobile devices in India to facilitate instant peer-to-peer (P2P) and person-to-merchant (P2M) transactions. Close ### Key Takeaways - The Unified Payments Interface (UPI) is a real-time payment system by the National Payments Corporation of India, facilitating bank transfers via smartphones. - UPI uses Immediate Payment Service (IMPS) and Aadhaar Enabled Payment System (AEPS) for seamless transactions, regulated by the Reserve Bank of India. - It allows mobile payments without the need for cash, credit, or debit cards, ensuring safety and financial convenience for users. - UPI supports both local and international transactions to India via various banking apps. - UPI contributes to increasing digital transactions in India's economy by reducing the reliance on cash. ## What Is a Unified Payments Interface (UPI)? The Unified Payments Interface (UPI) is a transformative mobile payment system developed by the National Payments Corporation of India (NPCI). It allows users to securely transfer money between bank accounts using just a smartphone app, bypassing the need to enter sensitive bank details each time. This streamlined process is regulated by the Reserve Bank of India (RBI). It has contributed significantly to the growth of digital transactions in India. UPI has made peer-to-peer and inter-bank transfers easier, safer, and more accessible for millions of users since its pilot launch in April 2016. We'll explore how UPI operates, its benefits, and explain how users can perform transactions. ## How UPI Transactions Work The Unified Payments Interface is a real-time payment system. It is designed to enable peer-to-peer inter-bank transfers through a single two-click factor authentication process. The interface is regulated by the [Reserve Bank of India (RBI)](https://www.investopedia.com/terms/r/rbi.asp), India's central bank. It works by transferring money between two bank accounts along with a mobile platform. The pilot system launched in India on April 11, 2016, and banks began uploading their interfaces in August 2016.1 UPI uses systems like Immediate Payment Service (IMPS) and Aadhaar Enabled Payment System (AEPS) for smooth account settlements. It facilitates push (pay) and pull (receive) transactions and even works for [over-the-counter](https://www.investopedia.com/terms/o/otc.asp) or barcode payments, as well as for multiple recurring payments such as utility bills, school fees, and other subscriptions. Open a New Account Advertiser Disclosure × The offers that appear in this table are from partnerships from which Investopedia receives compensation. This compensation may impact how and where listings appear. Investopedia does not include all offers available in the marketplace. ### Important In 2021, $940 billion was transacted over UPI, and by 2022, monthly transactions averaged over six billion.2 Once a single identifier is established, the system allows mobile payments to be delivered without the use of credit or debit cards, net banking, or any need to enter account details. This would not just ensure greater safety of sensitive information, but connect people who have bank accounts via [smartphones](https://www.investopedia.com/terms/s/smartphone.asp) to carry out hassle-free transactions. Overall, UPI leads to fewer cash transactions and may help reduce the [unbanked](https://www.investopedia.com/terms/u/unbanked.asp) population. ## UPI Transactions: Sending vs. Receiving Sending money on the UPI is called a "push." In order to send money, the user logs into the interface and selects the Send Money/Payment option. After entering the recipient's virtual ID and the amount desired, they choose the account from which the money will be debited. The user then enters a special [personal identification number (PIN)](https://www.investopedia.com/terms/p/personal-identification-number.asp) and receives a confirmation. Receiving money through the system is called a "pull." Once the user has logged in to the system, they select the option to collect money. The user then needs to enter the virtual ID for the remitter, the amount to be collected, and the account in which they will deposit the funds. A message then goes to the payer with the request to pay. If they decide to make the payment, they enter their UPI PIN to authorize the transaction. After the transfer is complete, both the sender and recipient get a confirmation text on their smartphones. ## Services Offered by Unified Payments Interface A number of key features are offered by UPI. Users can access balances and transaction histories, along with sending and receiving money. To send money, users need an account number, the Indian Financial System Code (or IFSC, which is an alphanumeric code that facilitates electronic transfers), the mobile number of the recipient, and a virtual ID or Aadhaar number (which is like a Social Security number). ## The Bottom Line The Unified Payments Interface (UPI) in India is a secure and efficient mobile payment system regulated by the Reserve Bank of India. It streamlines transactions by eliminating the need for cash or card details and supports both peer-to-peer and inter-bank transfers. Since its inception in 2016, UPI has transformed financial transactions in India by enabling hassle-free payments and reducing reliance on cash, thus fostering greater economic integration. By using existing systems like IMPS and Aadhaar Enabled Payment System, UPI ensures seamless and secure money transfers, making it a vital tool for the country's digital economy. 1. NPCI. " [Unified Payments Interface (UPI)](https://www.npci.org.in/what-we-do/upi/product-overview)."
- enkash.com › resources › blog › how-unified-payments-interface-worksEN
How UPI Works: Unified Payments Interface Explained - EnKash
What is UPI? Unified Payments Interface (UPI) is India's real-time bank-to-bank payment system for instant money transfers through mobile ...
- insightsonindia.com › 2026 › 09 › 01EN
The Unified Payments Interface (UPI) - INSIGHTS IAS
[Blog](https://www.insightsonindia.com/blog) Source: [TH](https://www.thehindu.com/sci-tech/science/what-goes-on-behind-the-screen-when-you-pay-through-upi-explained/article71411087.ece) **Context:** The Unified Payments Interface ( [UPI](https://www.insightsonindia.com/2026/08/13/upi-at-10-indias-digital-payments-revolution-and-the-road-ahead/)) cemented its role as the backbone of India’s digital economy, processing 2,366 crore transactions worth nearly ₹30 lakh crore in July 2026 alone. The Unified Payments Interface (UPI) **About** [**The Unified Payments Interface (UPI)**](https://www.thehindu.com/sci-tech/science/what-goes-on-behind-the-screen-when-you-pay-through-upi-explained/article71411087.ece) **:** **What It Is?** - **UPI** is an advanced, real-time interoperable payment system that enables instantaneous inter-bank fund transfers directly through mobile applications. Built as an open-architecture digital public infrastructure, it converts a user’s complex bank account details into a simple, secure virtual payment alias ( [Virtual Payment Address](https://www.insightsonindia.com/2025/12/05/digital-hub-for-reference-and-unique-virtual-address-dhruva/) or UPI ID). **Key Features of UPI:** - **Virtual Payment Address (VPA / UPI ID):** Eliminates the need to share sensitive financial data (such as bank account numbers, IFSC codes, or net-banking passwords) by using aliases. - **24/7/365 Real-Time Settlement:** Operates continuously with zero downtime, built over the [Immediate Payment Service](https://www.insightsonindia.com/2026/08/13/upi-at-10-indias-digital-payments-revolution-and-the-road-ahead/) (IMPS) messaging backbone. - **Single App Multi-Banking:** A single UPI mobile application can link multiple bank accounts from different institutions, allowing users to choose source accounts on demand. - **Two-Factor Authentication (2FA):** Incorporates device binding (SIM card registration) as the first factor and the secret UPI PIN as the second factor for robust security. - **Advanced Capabilities (UPI 2.0):** Supports recurring mandates (autopay), pre- [approved credit lines](https://www.insightsonindia.com/2026/05/06/emergency-credit-line-guarantee-scheme-eclgs-5-0/), overdraft account linking, invoice verification before payment, UPI Lite for offline small-value transactions, and conversational AI-driven voice payments.