Individuals and every society need easy access to savings accounts, loans, and insurance in order to prosper economically.^1,2 Reducing poverty and increasing economic growth are both facilitated by financial inclusion, which guarantees that all people and companies can affordably use financial products and services. However, low-income communities, rural regions, and developing nations continue to face formidable obstacles to financial inclusion. Geographical constraints, high operational costs, and an inadequate infrastructure have long made it difficult for traditional banking systems to reach these underprivileged populations. Consequently, significant sections of the world’s population continue to be either unbanked or have inadequate banking services, which worsens socioeconomic disparities.

A revolutionary solution to these problems is the rise of digital banking technologies. Innovations in the last 10 years have completely altered the way people can access financial services.³ These innovations include digital wallets, mobile banking, artificial intelligence (AI)-powered credit scoring, and blockchain technology. For example, mobile banking platforms allow people to do financial transactions through their phones instead of visiting physical bank branches. People who do not have access to conventional bank accounts can still manage and transfer their money easily with digital wallets. An increase in the availability of loans and other financial products is possible due to AI-driven credit scoring, which enables lenders to evaluate the creditworthiness of individuals without traditional credit histories. Financial transactions, especially international money transfers, stand to benefit from blockchain technology’s increased security, transparency, and decreased costs.

Despite these improvements, there are still a number of obstacles that prevent digital banking technologies from being widely used. To guarantee that these technologies can achieve their potential to promote financial inclusion, concerns such as data privacy, security risks, the digital divide, and regulatory hurdles need to be addressed. Additionally, the complete scope of digital banking’s worldwide influence on financial inclusion is alternated, despite the fact that its beneficial effects on inclusion have been extensively documented in specific areas, such as sub-Saharan Africa, where mobile banking has accomplished outstanding success. This is especially the case in areas where people still lack the necessary skills and knowledge to effectively use digital tools.

Early studies mostly explore the way through which microfinance could help reduce poverty and boost economic growth.⁴ It proved that microfinance institutions (MFIs) could make it much easier for poor people to get financial services by giving them small loans, savings accounts, and insurance. Due to the significant shift in research priorities brought about by the proliferation of digital technologies, mobile banking and fintech solutions are currently enjoying a great deal of media attention. Among these is M-Pesa in Kenya, which allows one to send and receive money on a cell phone.⁵ M-Pesa facilitates access to financial services for those without bank accounts. Similar to that, Easy Paisa and Jazz Cash services are prevalent in Pakistan. It has a big effect on financial inclusion as M-Pesa has made it easier for many people to save money and run their businesses (Figure 1).

The Americas, which includes North America, South America, Central America, and the Caribbean, had the most fintech companies in the world as of January 2024.⁶ There were about 13,100 fintechs in the region, which is about 1,500 more than the previous year. There were 10,969 fintechs in the EMEA region, which includes Europe, the Middle East, and Africa. In the last 10 years, investment in fintech has grown quickly. Investment activity, on the other hand, dropped sharply in 2022, and investment value dropped especially sharply in the Americas. Most likely, this downturn was caused by the COVID-19 pandemic, which made the economy shrink. Everyday life depends on fintech services, as each year more companies enter the market. Eight of the world’s ten largest fintech companies were based in the United States and China in January 2024, making these two countries home to most fintechs. Along with Chinese and American companies, Stripe, an Irish payment processing platform, was the most valuable fintech unicorn in 2022, showing the global diverseness of the fintech industry.⁷ In the last few years, individuals have shifted toward diversified digital banking tools. They prefer Apple Pay, PayPal, and similar platforms because they make it simple to buy things online and keep track of their money. Additionally, by removing the need for a traditional bank account, digital wallets have the potential to increase the number of people who make use of financial services.⁸ However, the privacy of data and safety have been called into question. AI has changed the way people check their credit and decide what to do with their money. Credit scoring models that are powered by AI explore different sources of information to decide if a person is creditworthy. This is why they are better and more accurate now than they were in the past. To a lesser extent, blockchain technology has the potential to improve the security, transparency, and efficiency of financial services.⁹ It has the potential to make businesses, and easier to send money across borders. There are also some problems with blockchain technology; the main concern is the lack of government control in managing it.

Global investments in fintech companies rose sharply from 2010 to 2019, reaching a high point of $216.8 billion as depicted in Figure 2. However, in 2020, investments dropped sharply, falling below $125 billion because of various market factors.¹⁰ The value of investments increased again in 2021, reaching more than $225 billion. However, they decreased again in 2022, though they were still higher than the numbers from 2020. Even though $113.7 billion was invested in fintech globally in 2023, the downward trend persisted. The Americas are still the best place to invest in fintech, with over 13,000 fintech startups and over half of the world’s investment volume. With a value of $50 billion, San Francisco-based payment processing company Stripe was the biggest U.S. fintech company in 2023. Chime came in second, with a value of $25 billion.

A lot of new research has been done on the way through which rules and regulations affect financial services that are offered in the cloud. Good rules need to be in place for digital financial services to be available, safe, and last a long time. According to research, the government needs to find a way to keep people safe while also letting new ideas come up. They need to learn about money, protect data, and show respect for privacy. Banks, other financial firms, and government programs should work together more to help more people access financial services. A lot of research shows case studies and the best ways to get things done.

According to Figure 3, five main factors are affecting the order of priorities in regulatory plans. Various financial services regulation is based on protecting consumers and keeping the economy stable.¹¹ However, the pandemic and lockdowns have brought other issues to the forefront. Because of the instability in the capital markets, there is more attention than ever on systemic risk when it comes to computer-driven trading strategies and some types of funds. The pandemic has also sped up changes in the way through which people use technology and the need for long-term financing.¹¹ It is clear from the study of digital banking and financial inclusion that this area is expanding and changing. The first ones to get attention were MFIs, which help poor people, especially in developing countries, have easier access to money in the form of loans, savings accounts, and insurance plans (Figure 4).

One study on microfinance found that it does help fight poverty and make the economy grow.¹² MFIs helped low-income people start small businesses, make their lives better, and learn better ways to deal with personal and business risks by giving them small loans.¹² When we buy insurance, it lowers the financial risks that come with being sick, having an accident, or a natural disaster. It also made it easier for people to get money in rural and underserved areas where traditional banking was weak or not present at all. By providing direct financial services to these communities, MFIs filled a very important gap in the financial services market. At this point, studies showed that microfinance could make the economy grow, raise household incomes, and make society more stable.¹³

Digital technologies have made big changes to the way financial services are set up and run. At the moment, researchers are examining fintech and mobile banking. In traditional microfinance, you have to go to a place and talk to someone in person for different financial needs. With mobile banking, on the other hand, we can use phones to access financial services online. Fintech, which stands for “financial technology,” refers to a lot of different new ideas that aim to make receiving and using money easier for everyone. Some examples are peer-to-peer lending, digital wallets, and blockchain apps.¹⁴

This change can be seen in Kenya, where M-Pesa is a cell phone service that allows one to send and receive money, pay bills, and do other financial things without having a bank account. Before M-Pesa, many Kenyans, especially those who lived in the countryside, were even not able to use traditional banking because there were not enough bank branches or the right infrastructure in place. M-Pesa filled this need by giving people an easy-to-use choice. Another good thing about the service is that it makes the economy stronger. It makes it easier to do business and helps small businesses grow. People send money to each other more often, so they do not have to deal with cash as much. Different levels of success have been seen when researchers and professionals try to change models that work in one place and use them in another. This has made many people look more closely at mobile banking options in different places to make economies grow for least developed economies.

Smart wallets are also known as e-wallets, as people can pay for things in new ways with apps like Google Wallet, Apple Pay, Samsung Pay, and PayPal.¹⁵ With these, people can keep their credit card information safe on their phones or computers. They can send money, buy things, and pay their bills without much trouble. Online shopping and paying for things have never been easier. It is possible to link more than one account to a digital wallet, like a bank account or a reward card. It is also easier to make a budget, keep track of spending, and use transparent transaction mechanisms through e-wallets. The majority of digital wallets also let us use more than one payment method or currency. If we do business across borders or live in a place that is hard to get to banks, this could be very helpful.

Digital wallets are useful, but they make people very concerned about their safety and privacy. People who break into computers or steal data can use digital wallets to get private financial information.¹⁶ Strong security is needed to keep users’ financial information safe from fraud and people who should not be able to see it. Security protocols, encryption, and multiple-factor authentication are all things that companies must use to keep their customers’ and their financial data safe.¹⁷ One form of ID is not enough for multi-factor authentication, as users need to show more than one, like a password and a biometric scan, to prove their identity. There is also a need to make sure that security is always up to date and check often for vulnerabilities.

The value of mobile-to-bank and off-net P2P payments has gone up, and so has the number of transactions. Figure 5 shows that interoperable services are becoming more popular in the region.¹⁸ In 2020, $26 billion was sent back and forth between banks and mobile money platforms, a 61% increase from the year before. Most of these flows have been mobile-to-bank transfers over the past 5 years. Aside from the COVID-19 pandemic, businesses and governments have also been instrumental in the region’s shift to digital payment methods. It didn’t take long for mobile money to overtake all other methods of sending money for things like emergencies and income support. From 2019 to 2020, the number of distinct customer accounts in Asia that received payments from the government to individuals increased threefold.¹⁸ This helped over a million people by sending money directly to their mobile money accounts.

There have been a lot of changes in the financial world because of AI. New credit scoring models that are powered by AI are a big improvement over the old ways of checking credit.¹⁹ Most of the time, traditional credit scores are based on things like income, debts, and credit history. This is a good way to start figuring out if someone is creditworthy, but it may not tell us everything we need to know about their finances, especially if they do not maintain good money habits or have a short credit history.

Models that are driven by AI can examine more than one kind of data because they use complex algorithms and machine learning techniques. Among these are past purchases, use of social networks, online habits, and even other types of information like past rental and utility payment records. Some people may not be able to get credit because they do not have a lot of credit history. AI models can help close these gaps by looking at more kinds of data. This is a fairer way to decide who can responsibly borrow money. AI models might decide if someone is creditworthy by looking at non-traditional data, like how well they pay their bills on time or how much money they make from gig economy work. People who do not get enough credit may have been seen as risky in the past. But this can help them get credit by showing how they spend their money now.

With a projected 35 billion USD in 2023 and 97 billion USD by 2027, or a compound annual growth rate of 29%, spending on AI in the financial sector is expected to increase significantly. The increasing importance of AI in the financial industry is demonstrated by this growth trajectory. The banking sector received the highest amount of AI investments in 2023, totaling 20.6 billion USD, while the retail sector came in second, with 19.7 billion USD, illustrating the different levels of AI adoption across industries as shown in Figure 6 (20). In 2022, private investments drove corporate AI investments to nearly 92 billion USD, highlighting the worldwide focus on AI development. The financial sector is well-positioned to take advantage of AI technologies, which are dramatically changing the industry, thanks to these investment trends that indicate a competitive landscape.

The use of AI to check credit is still fraught with moral issues. The chance of algorithmic bias is a big problem, as data may already be skewed because of things like unfair lending practices or differences in income.²¹ The AI could make these biases worse or even stronger. This is not fair to some groups, and it goes against the goal of Credit for Everyone. AI systems must be made and used clearly and fairly because of these risks. One way to do this is to make sure that the data AI models are taught is correct and does not have any bias in it. It also means thinking of ways to check and judge the decisions AI makes. Then people can understand how their credit scores are calculated and take action if they believe they have been lied to. Third-party checks and audits are another way to help ensure AI systems work honestly and fairly.

A network of computers is used by blockchain, a type of decentralized, distributed ledger technology, to safely store and share information about transactions.²² A “chain” is made up of the blocks that came before it and the transactions that are being handled at the moment. Everyone in the network can see every transaction that is written on a blockchain. Because it makes fraud and corruption less likely, this openness can build a lot of trust between people. This lets people keep track of and check on financial transactions in real time.

As blockchain technology is not centralized, there is no single point of failure, which makes it safer. Usually, central banks or middlemen handle and check transactions in traditional financial systems. These people can be hacked or used for fraud. Deals in blockchain are safe and cannot be changed because of cryptographic algorithms and consensus mechanisms. One big benefit is that it helps protect private financial data and lowers the risk of cyberattacks. Blockchain can speed up financial transactions by cutting out middlemen and automatically checking transactions. One example is sending money across borders. Going through all the various banks and clearinghouses can make this process very time-consuming and expensive.

Through the use of blockchain technology, a middleman is eliminated, allowing for direct commerce between individuals. Doing business could go from taking days to just minutes, with lower fees if this happens. This has the potential to expand access to financial services, particularly for those who do not currently have it, by making them more accessible and affordable.

Most of the time, traditional international money transfers cost a lot and take a long time because there are so many people in the middle. Blockchain technology can let people send money to each other directly from one country to another. The process goes faster and costs less because of this. This is very helpful for sending money back to family and friends in developing countries, where fast, cheap transactions can make a big difference. We can save money on transactions with blockchain by cutting out middlemen and automating tasks with smart contracts. These are contracts that run themselves and have their terms written directly into code. Low-income people might be able to use financial services and join the digital economy if it costs less to do business.

Bitcoin’s consensus system uses proof-of-work, which can make it take a long time to complete many transactions at once. Experts are working on Layer-2 scaling methods and other consensus mechanisms as possible answers. But they still have a big issue that needs to be fixed before a lot of people can use them. It can be hard to understand blockchain and cryptocurrencies because each country has its own rules. This can slow down the spread of these technologies. How “know your customer” and “anti-money laundering” regulations are followed determines how digital assets are managed by the law.²³Rules should help new technologies and ways of doing things, such as blockchain solutions, get used and spread in the business world. Some examples are mobile banking, digital wallets, and blockchain-based projects. However, they also have to protect their clients from scams, hackers, and people who take their money without permission. If digital banks and fintech firms follow the rules and keep users safe, they can come up with new ideas.²⁴ Over time, digital financial services will need to gather and use more data about people and their money. Because of this, keeping data safe and private is now very important. The General Data Protection Regulation and other national data protection laws are meant to keep users’ private information safe.²⁵ For people to trust digital financial services, they make sure that they follow strict rules about privacy and data security.

Fintech companies should help people learn about money by giving them lessons and clear information about their goods and services. The government makes most of the rules for digital financial services. Some of these are public awareness campaigns, systems for verifying digital identities, and programs that help people get easier access to money.²⁶ Many countries have created “regulatory sandboxes” where new fintech companies can test their goods and services in a secure area before releasing them to the public. As the government sets rules, new technologies need to do their part to keep people safe.

Regulatory bodies and fintech companies work together to make rules that work with new technologies and business models. In the United Kingdom and Singapore, regulatory sandboxes have helped fintech startups come up with new ideas and make their solutions more widely available, all while still following the rules set by regulators.²⁷ They have made it possible for new financial services and goods to appear, like blockchain apps and digital wallets. Digital financial services rules should be clear and adaptable and prioritize customer safety. Working with field workers and adapting to new technology are some of the best ways to make them. One idea is that regulators should make rules based on the risks that come with different kinds of online banking. A regular check of regulatory results is another way to make sure that frameworks stay useful and effective in a digital world that changes quickly.

Digital financial services are changing quickly, so we need a plan that includes both new technology and close government oversight. These are the rules we need to make sure that digital financial services are available, safe, and last a long time. Governments and fintech companies working together can promote financial inclusion by demonstrating past successes and failures.²⁸ Future studies should look at new topics, such as how to use AI morally, how scalable blockchain solutions are, and how well regulatory frameworks protect consumers while also promoting new ideas. Better financial inclusion policies and strategies can help as many people as possible get the benefits of digital banking. This can be done through research that helps us understand these changes better.

This systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines (Page et al.²⁹; Sohrabi et al.³⁰ to ensure transparency and rigor. A PRISMA checklist is provided with page numbers where each checklist item is addressed. The review methodology was established before conducting the study and adhered to the PRISMA protocol throughout.

The results of this review strongly support the notion that digital banking technologies, particularly mobile banking, digital wallets, AI-powered credit scoring, and blockchain, are transformative in expanding financial inclusion. The review found that mobile banking significantly improves access to financial services, especially in regions like Sub-Saharan Africa and South Asia, where traditional banking infrastructure is lacking. This finding is consistent with other studies in similar settings that emphasize mobile banking’s role in bridging the gap for unbanked populations. Also, in regions like Asia and North America, digital wallets are making a big splash as a way to help people who do not have access to traditional bank accounts manage their money and make transactions. Consistent with earlier research, this study found that digital wallets increase financial inclusion by lowering the barrier to entry for banking services. Nevertheless, doubts regarding privacy and data security were consistent throughout the studies that were examined.³⁷

Several studies validated that AI-driven credit scoring models provide more fair access to credit, particularly for those without official credit histories. For underserved populations in particular, AI-based systems can examine alternative data sources to enable more thorough evaluations of creditworthiness. But as we have seen, there are still big problems, like algorithmic bias and data privacy concerns, which, if left unchecked, could make inequality worse. Despite its relative youth, blockchain technology shows great potential to revolutionize financial services by making transactions more transparent and cutting transaction costs.³⁸ A major obstacle, though, is the lack of clarity in regulations and the weak frameworks that support them. Research indicates that blockchain’s scalability and increased adoption are dependent on these factors.

Compared to previous studies, these results provide more evidence that stringent regulatory frameworks are necessary to guarantee the safety, security, and scalability of digital banking solutions.^39,40 Particularly in areas with less consumer protection, digital financial services may have trouble gaining broad acceptance in the absence of robust regulatory supervision. To protect consumers and encourage innovation in financial services, the review reiterates the need for consistent regulatory policies.

Despite providing a thorough examination of how digital banking technologies have affected financial inclusion, this review does have a few caveats that should be pointed out. A potential bias toward English-speaking countries may have occurred because, first, the review only included studies published in journals that used the English language. Because of this restriction, we may have missed out on valuable research on financial inclusion that was published in a different language. To present a more comprehensive and fairer picture, future reviews should draw from a wider range of sources. Secondly, it is possible that older studies that could have offered historical context or highlighted long-term trends in digital banking and financial inclusion were left out because their time frame was limited to 2010–2024. Although the innovations covered in this review are more recent, the results could have been influenced by policies and technologies that were in place earlier.

Lastly, it is worth noting that the review may have missed some practical insights and real-world examples that are not always found in peer-reviewed literature because gray literature (such as reports from non-governmental organizations, industry publications, and policy briefs) wasn’t included. Future reviews could benefit from including gray literature to provide a more comprehensive picture of digital banking’s effects, particularly in light of the difficulties and regional variations in its practical application.

Finally, results might be different from one study to the next due to differences in methodology, study designs, and geographic foci. Although the review made use of thematic synthesis to account for these variations, the results may not apply to a broader context due to the diversity of the included studies. Because of differences in digital literacy, infrastructure, and regulation, it is crucial to understand that what works in one place may not work at all in another, and to interpret results in light of the particular populations and regions researched is essential.

The rise of digital banking has been a game-changer in the fight for greater access to financial services for those who either do not have bank accounts or do not have enough of them. This year, mobile banking apps, digital wallets, AI-based credit scoring, and blockchain technology have all made it easier to give financial services to people who did not have them before. These changes are likely to help poor areas get out of poverty, grow their economies, and make life better for everyone.

The “digital divide” makes it hard for digital banking services to reach people or places that do not have good tech skills or digital infrastructure. For many, digital banking is still useless because they lack a strong internet connection or do not know how to use digital money tools. It is even worse for poor or socially disadvantaged people. Later on, more digital infrastructure should be built, especially in places that are not well connected or in rural areas. Targeted education programs should also be made available to help people get better at using technology. Computer programs like these ensure that online banking can really help everyone organize their money.

Digital financial ecosystems are very complicated, and people who live in places where it’s not very useful yet should learn more about them. In places where the network is slow, this is very major. Also, researchers should look into how AI and ethics can work together to make financial decisions that are fairer without adding to the biases that are already there. How government policies and international partnerships affect the making of flexible rules that keep people safe and allow for new ideas is another important area that needs more research. We can also learn a lot about how to make these programs last from long-term studies that look at how digital banking affects economic growth and reduces poverty. Filling in these research gaps will help researchers get a better picture of how digital banking can help more people get access to money and boost the economy.