India is widely considered to have the most advanced, high-volume real-time payment system in the world, driven by its Unified Payments Interface (UPI). Developed by the National Payments Corporation of India (NPCI), UPI handled over 129 billion transactions in 2023, accounting for nearly 50% of the world's real-time transactions. It allows for instant, 24/7, peer-to-peer (P2P) and person-to-merchant (P2M) transactions via mobile apps and QR codes.
India has emerged as the global leader in fast payments, according to a recent note by the International Monetary Fund. This is primarily driven by the Unified Payments Interface (UPI), which processes billions of transactions monthly.
iDEAL was introduced in 2005 by the largest banks in the Netherlands with the goal of creating a standardised and simple payment method for online transactions. Since then, iDEAL has grown to become the preferred payment method for Dutch consumers.
Sweden has emerged as the world's first cashless nation, with phone taps and cards replacing physical money. This digital shift, driven by apps like Swish, simplifies transactions for locals and tourists alike. While most establishments accept digital payments, carrying some cash is advised for smaller vendors.
Today, the country is once again leading a financial revolution — this time by nearly eliminating cash altogether. According to the Swedish central bank, only 8% of the population used cash in 2022, and the amount of physical currency in circulation has dropped by half since 2007.
With an astonishing over 129 billion transactions processed and a commanding 49 per cent share of global real-time digital payments, UPI has secured the No. 1 position worldwide, firmly placing India at the forefront of the global fintech revolution.
These gateways handle currency conversion, ensure compliance with international banking regulations, and provide security measures to protect sensitive financial data.
One of such systems is Perfect Money (PM). PM is popular in Iran, Vietnam, Nigeria, Pakistan and to some extent, Japan. There is no public record that shows Perfect Money is regulated by the financial authorities of any country.
Switzerland: A global leader in banking security
Switzerland is a global leader in secure private banking, known for its stable financial system, strict privacy laws, and strong banking regulations.
Switzerland offers political stability, a strong currency and a sophisticated financial system designed to protect wealth. Its private banks provide some of the world's best wealth management, estate planning and tax optimisation services. These factors make it a top choice for high-net-worth individuals.
Largest Payment Processor: Fiserv (First Data)
As of 2025, the largest payment processing company in the world — by volume of merchant payments handled — is Fiserv, which owns First Data and the popular Clover POS system. Key Facts About Fiserv: Merchant Transactions Processed: Over $2.4 trillion annually.
Here are some of the most secure payment methods available online:
Wealthy nations are nearly cashless: Sweden (14%), Norway (10%), and South Korea (10%) show how digital payment infrastructure correlates with economic development.
PayU is one of the leading online payment gateways in India & has empowered 5 lakh+ businesses so far. It enables businesses to collect digital payments across 150+ online payment methods such as Credit Cards, Debit Cards, Net Banking, EMIs, BNPL, QR, UPI, Wallets, and more.
Rankings out of 69 economies
Sweden has officially become the first country in the world to go completely cashless. Almost every shop, café, and public transport system in Sweden now accepts only digital payments like cards or mobile apps. The popular app “Swish,” launched in 2012, is used by millions of Swedes to send and receive money instantly.
Key Takeaways. A cashless society is coming: Due to the influence of COVID-19 and the growing popularity of digital payment methods like digital wallets, digital payment apps, and cryptocurrency, the US is well on its way to becoming a cashless society.