On July 20, 2023, the Federal Reserve launched FedNow, the first new U.S. payment rail in over 50 years. The system enables instant, 24/7 bank-to-bank transfers, replacing a process that previously required one to three business days through the Automated Clearing House (ACH) network. Within its first year, over 900 financial institutions enrolled. The launch was significant not because instant payments were new globally (over 70 countries already had them) but because the world’s largest economy had finally built the infrastructure that India, Brazil, and the United Kingdom deployed years earlier. The global digital payment solutions market reached $114.41 billion in 2024 and is projected to grow to $361.30 billion by 2030, at a 21.4% CAGR, according to Grand View Research. The infrastructure layer underneath those payments is where the next wave of competition and investment is concentrated.
The Legacy Infrastructure Problem
Most payment systems in developed economies run on infrastructure designed in the 1970s. The ACH network in the United States processes over 31 billion transactions per year, but it operates in batch cycles. A payment initiated on Monday afternoon might not settle until Wednesday. SWIFT, the global messaging network connecting 11,000 financial institutions across 200 countries, transmits payment instructions but does not move money. Each instruction passes through one or more correspondent banks, each adding fees and processing time.
This architecture made sense when transactions were paper-based and volumes were manageable. It does not work for an economy where consumers expect instant confirmation, gig workers need same-day pay, and e-commerce merchants ship products within hours of receiving an order. The mismatch between what users expect and what the infrastructure delivers created the opening that fintech companies exploited.
The Boston Consulting Group projects fintech revenues will reach $1.5 trillion by 2030, with embedded finance and digital lending accounting for the largest share of projected growth.
According to CB Insights’ 2024 fintech report, global fintech funding declined 40 percent between 2022 and 2024, pushing the sector toward consolidation and a sharper focus on profitability over growth at all costs.
Stripe built an abstraction layer on top of legacy card networks, making it possible to accept payments with a single API call. Square turned a smartphone into a point-of-sale terminal. PayPal created an account-to-account transfer system that bypassed bank transfers entirely. Each of these companies succeeded by building software that compensated for infrastructure limitations. The question now is what happens when the infrastructure itself gets upgraded.
Real-Time Payment Systems by Country
The global rollout of real-time payment systems has been uneven, with developing economies often leading developed ones.
| Country/Region | System | Launch Year | 2024 Volume/Value | Settlement Speed |
|---|---|---|---|---|
| India | UPI | 2016 | 16.6B transactions/month (Jan 2025) | Instant |
| Brazil | Pix | 2020 | 4B+ transactions/month | Instant, 24/7 |
| United Kingdom | Faster Payments | 2008 | 4.5B transactions/year | Under 2 minutes |
| United States | FedNow | 2023 | 900+ enrolled institutions | Instant, 24/7 |
| European Union | SEPA Instant | 2017/2025 mandate | Mandate effective 2025 | Under 10 seconds |
Sources: Statista Digital Payments Outlook, Federal Reserve, NPCI, Banco Central do Brasil
India’s UPI is the most successful real-time payment system by volume. It processed 16.6 billion transactions in January 2025 alone, more than all U.S. credit card transactions combined in the same period. The system is free for most consumer transactions, interoperable across all banks, and accessible through any smartphone. Its success has made it a template for other countries: Brazil’s Pix was explicitly modeled on UPI’s architecture.
The European Union’s approach is regulatory rather than voluntary. The instant payments regulation effective in early 2025 requires all payment service providers in the eurozone to offer instant transfers at the same price as standard transfers. Banks that previously charged a premium for instant settlement can no longer do so. This eliminates a revenue stream but also removes the last excuse for slow payments in Europe.
Where Fintech Companies Fit in the New Stack
When governments build real-time payment rails, they eliminate the speed advantage that many fintech companies once held. If a bank transfer settles in 10 seconds through Pix or UPI, the fintech company cannot compete on speed alone. The competitive advantage shifts to three areas.
First, user experience. A real-time payment rail is infrastructure, not a product. It needs a front end. Fintech companies like PhonePe (India’s largest UPI app with over 500 million registered users) and Nubank (which integrated Pix into its app for 100 million Brazilian customers) compete by making the payment experience simpler, faster, and more integrated than what banks offer. The payment rail is the same. The app is what differentiates.
Second, cross-border connectivity. Domestic instant payment systems are national. They do not natively connect to each other. A UPI payment in India cannot reach a Pix account in Brazil. Fintech companies like Thunes, Airwallex, and Wise are building the connective tissue between these systems, creating cross-border payment corridors that use domestic real-time rails on each end. The Bank for International Settlements’ Project Nexus is attempting the same thing at an institutional level, aiming to connect five or more national systems by 2026.
Third, embedded financial services. Once a fintech company processes a merchant’s payments, it has transaction data that enables lending, insurance, and cash management products. Stripe Treasury lets platforms offer their merchants FDIC-insured accounts. Adyen’s embedded financial products let marketplaces offer seller financing. Square (now Block) uses payment data to underwrite loans through Square Loans, having originated over $17 billion since 2014. The payment is the entry point. The revenue increasingly comes from the financial services built on top of the payment data.
The API Economy in Payments
Payment infrastructure has become an API-first industry. Every major payment company now sells access to its infrastructure through programmable interfaces.
Stripe’s API handles everything from card processing to tax calculation to fraud detection, all accessible through standardized endpoints. Adyen’s single platform processes payments across 37 countries through one integration. Checkout.com offers modular APIs that let merchants customize each step of the payment flow independently.
This API-first approach has a compounding effect. When a merchant integrates Stripe’s payment API, it also gains access to Stripe’s billing, invoicing, tax, and identity verification products. Switching to a competitor means re-integrating not just payments but every adjacent product that runs through Stripe’s infrastructure. The average enterprise merchant uses four to six Stripe products, creating switching costs that increase with each additional integration.
The same dynamic is playing out in Banking-as-a-Service. Companies like Unit, Treasury Prime, and Column provide APIs that let non-financial companies embed bank accounts, card issuance, and lending into their products. A SaaS company that integrates Unit’s API to offer its customers a business bank account now has a dependency on Unit’s infrastructure that is expensive and time-consuming to replace.
Investment and Consolidation Trends
Venture capital investment in payment infrastructure companies has followed a boom-and-correction cycle. Funding peaked in 2021, with companies like Checkout.com ($1 billion Series D at $40 billion valuation) and Stripe ($600 million at $95 billion valuation) raising at historic valuations. By 2023, private market valuations had corrected significantly. Stripe’s secondary market valuation fell to roughly $50 billion before recovering to $65 billion following its 2024 employee stock sale.
The correction triggered consolidation. Larger payment companies began acquiring smaller ones to expand geographic coverage and product capabilities. Stripe acquired Paystack (Nigeria, $200 million) for African market access. Rapyd acquired Valitor (Iceland) for European acquiring licenses. Nuvei acquired Paya for B2B payment capabilities.
The pattern suggests that the payment infrastructure market is maturing from a fragmented collection of startups into a smaller number of large platforms, each trying to own the full stack from payment acceptance through financial services. The companies that built best during the funding boom are now using profitability and scale to acquire those that did not.
The $361 billion payment solutions market projected for 2030 will be built on infrastructure that did not exist a decade ago. Real-time rails, API-first architectures, and cross-border interoperability agreements are creating a payment system that is faster, cheaper, and more programmable than anything the correspondent banking era produced. The fintech companies that treat these new rails as infrastructure to build on, rather than as competition, will capture the largest share of the value created.
