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open-finance-and-financial-data-ownership
  • Industry: Data Security
  • Timeline: Nov 11, 2026
  • Writer: Aaqil Abdul Rehman

Open Finance and the Battle for Financial Data Ownership

Financial data has traditionally remained with banks and financial institutions, limiting how easily customers can share it with other providers. Open finance changes this by allowing customers to authorize data sharing with banks, fintech companies, and other service providers. This development also increases the need for secure data connections and reliable applications, making software development services an important part of building and maintaining these solutions.

Consumers are showing greater willingness to share their financial information when it is protected. MX’s consumer research, based on a survey of more than 1,000 U.S. adults, found that 59% are willing to share their financial data if it is kept secure. This is a 10-point increase from the previous year. The survey also found that 82% want to see all their financial information in one place. These results show that consumers value both security and convenience when sharing their financial data.

Key Takeaways

  • Open finance allows customers to authorize financial data sharing between different service providers.
  • Banks, fintech companies, and data aggregators have different roles in accessing and using financial information.
  • Customers need to know who can access their financial records and why.
  • Access to financial data helps lenders, payment providers, and fintech companies serve customers.
  • Businesses must protect shared information and follow data protection rules.
  • Fair data access can encourage competition while maintaining customer trust.

What We Will Cover

  • What open finance means for financial data ownership.
  • Who controls customer financial information.
  • Why banks and fintech companies compete for data access.
  • How customer consent affects financial data sharing.
  • The business opportunities created by open finance.
  • How security and regulations can support responsible data access.
  • Who should control financial data in the future.

What Open Finance Means for Financial Data Ownership

A customer may have a bank account with one company, a loan with another, and insurance or investments somewhere else. Open finance makes it easier to share information from these different services with another provider, as long as the customer agrees.

APIs help banks and other financial companies exchange this information without asking customers to share their banking passwords. Customers can approve access to their records while keeping control over what they share.

The Bank for International Settlements explains that this type of data sharing can give customers more choices and help businesses offer new services. However, companies cannot use the information freely. They need customer permission and must follow data protection rules.

Who Controls Customer Financial Data?

The question of financial data ownership is more complicated than deciding which organization stores the information. Banks collect and maintain records, fintech companies use them to provide services, and customers have rights over how their personal information is accessed and shared.

Financial Data Sharing Between Different Providers

Financial services often involve more than one provider. A bank may hold the customer’s account records, while a data aggregator helps make those records available to another company. Fintech companies can then use the information to offer services such as budgeting tools or loans. APIs make it possible for these providers to connect and share data.

This does not mean every company has the same rights over the data. An aggregator may be involved in transferring information without using it to provide a financial product. A fintech company can process records for a specific service, but it cannot assume that accessing those records allows it to use them in other ways.

Customer Rights to Access and Share Financial Data

Customers may want to share their financial records when applying for a loan, using a budgeting app, or moving to another financial provider. Open finance allows them to give permission for this information to be shared. They can also withdraw that permission when they no longer need the service.

This ability to move information between services is known as data portability. It gives customers more flexibility when choosing financial products and switching providers.

However, access and ownership are different. A fintech company receiving customer permission does not gain unrestricted ownership of the information. Its use must remain within the agreed purpose and applicable legal requirements.

Why Financial Data Has Become a Business Battleground

Financial information has become an important business resource because it helps companies understand customers, evaluate financial activity, and develop services. As more institutions adopt open finance, access to this information is becoming a source of competition.

The Business Value of Customer Financial Data 

Financial records support a wide range of services that customers use regularly. Lenders consider a person’s income and regular spending when assessing a loan application. Access to customer financial records gives businesses a better understanding of individual financial needs. They can use this information to review applications, adjust their services, and develop products that suit different customers.

This information can also help companies improve the services they already offer. Instead of providing the same options to everyone, they can use relevant financial details to make their products more suitable for different customers.

Competition Between Banks and Fintech Companies

Sharing customer data requires investment from both sides. Banks are responsible for maintaining the systems that hold financial records, while fintech companies need technical connections to access information for their services. The question is how to split these costs.

Banks may expect fintech companies to contribute toward the costs of providing data access, including:

  • Maintaining the infrastructure used to store customer records.
  • Managing secure API connections.
  • Protecting financial information and keeping systems reliable.

Fintech companies, however, may find these charges difficult to manage because:

  • High connection fees increase their operating costs.
  • Connecting with several banks can add further expenses.
  • Smaller fintech companies may have fewer resources to cover these expenses and expand their services.

These differences can affect how easily financial information is shared between providers and how much room smaller fintech companies have to introduce new services.

Rules for Sharing Customer Financial Data

Financial data sharing involves more than giving another company access to customer records. Providers need to respect the customer’s choices and follow clear limits when handling that information.

  1. Customer authorization: A company cannot access a customer’s financial records without permission. The customer should know which provider is requesting the information and what it intends to do with it.
  2. Limited data access: Permission to access one type of information does not mean a provider can view everything. For example, an API connection can give a service access to selected account records without asking the customer for their banking password.
  3. Secure data transfer: A provider must protect financial information when sending it to another company. Encryption and access controls help prevent people without permission from viewing customer records.
  4. Data portability: Customers should not have to start from scratch when they move to another financial provider. They should be able to obtain their records and transfer them through electronic connections or downloadable files.
  5. Standardized data exchange: Banks and fintech companies may store financial records in different formats. They need to use formats that allow their systems to share and read the information correctly.
  6. Revocable permission: Customers can ask a provider to stop accessing their financial records whenever they no longer want to share them. The provider may still need to keep records it has already collected if the law requires it.

The Business Impact of Open Finance

Financial companies can use customer information shared by other providers to improve their services. This gives them more ways to develop products, reach new customers, and offer services based on what people need.

How Data Sharing Supports New Financial Services

Access to customer-authorized information can improve several financial services.

  • Lending: Lenders can look at a person’s income, spending, and bank transactions when reviewing a loan application. This can also help people who have little or no credit history show how they manage their money.
  • Payments: Customers can connect their bank accounts to payment services and send money directly from one account to another. This gives them another way to make payments without using a card.
  • Personal financial management: Some apps bring information from different bank accounts into one place. Customers can check their spending, see how much they save, and keep track of their regular payments.
  • Insurance: Financial records can give insurance companies more information when handling customer applications and policy changes.

Customers may not need to collect and send as many documents when applying for financial services. A lender, for instance, can verify income through a bank connection if the applicant gives permission.

Protecting Customer Data in Open Finance

Wider access to financial information creates more opportunities, but it also increases the responsibility to protect sensitive records. Businesses need to make sure that data sharing remains secure, controlled, and transparent.

With APIs, banks can share customer information with authorized providers while customers keep their banking passwords private. Authorized applications can request specific records through secure connections. However, businesses still need to protect these connections and the information they handle.

Some important security measures include:

  • Encryption: Protect customer information while it is being sent between systems and stored.
  • Authentication: Check that customers and service providers are who they claim to be.
  • Access controls: Give providers access only to the information they have permission to use.
  • Activity monitoring: Keep track of data requests and check for unusual activity.
  • Regular security testing: Check APIs and connected systems regularly to spot security gaps.
  • Limited data collection: Collect only the information needed to provide a service. This reduces the amount of customer data at risk if a system is compromised.

Financial companies must also follow the data protection rules that apply in the markets where they operate. These rules can cover customer consent, data access, privacy, security, and responsibility when information is misused.

How Regulations Affect Financial Data Sharing

The European Union has proposed a Financial Data Access framework to cover more than payment account information. Under this proposal, customers would be able to share data from other financial services, including savings and investments.

This can be difficult for companies that serve customers in several countries. They may have to change how their systems handle data requests and customer permission to meet local rules.

The Future of Financial Data Ownership

The future of financial data involves several parties, and each has a different responsibility:

  • Customers: They should decide what financial information they share, which companies can access it, and when that access should end.
  • Banks: They hold customer financial records and need to provide access through secure systems when customers approve it.
  • Fintech companies: They use approved financial information to develop services and should only access the records needed for those services.
  • Regulators: They set rules for data access, customer consent, privacy, and security to make sure providers handle information responsibly.

Open finance gives banks and fintech companies more ways to use financial information in their services. But access to customer records comes with responsibilities. Companies must respect customer permission, protect the information they receive, and follow the same fair rules when offering their services.

Conclusion

Open finance is giving banks and fintech companies new ways to work with customer information. This can lead to more financial services and choices, but it also puts responsibility on the companies handling that data. Customers should know who has access to their records and be able to change their permissions when they choose.

Building these services requires technology that can connect different systems, manage data securely, and support changing business requirements.

Looking to develop or improve your financial platform? Get in touch with Arpatech to discuss your requirements and explore the right software solutions for your business.

FAQs

1. How Can Open Finance Help Me Manage My Personal Budget?

Open Finance can make personal budgeting easier by allowing you to connect information from different financial accounts in one place. A budgeting application can use authorized data to show your income, expenses, savings, and regular payments.

With all this information in one place, you can see how much you spend each month and which expenses take up most of your income. This can help you decide where to cut back, how much to save, and how to manage your monthly budget.

2. How Do Financial Institutions Handle Ownership of Customer Financial Data?

Banks store information about their customers, including account information and transaction records. These records are held by financial institutions, but customers still have rights over how their personal information is accessed and shared. The exact rights depend on the data protection laws that apply.

Open finance allows customers to give other providers access to selected financial records. A company receiving this information cannot use it for unrelated purposes and must follow the conditions of the customer’s permission.

3. What Are the Primary Revenue Models for Fintechs Leveraging Open Banking?

Fintech companies use different ways to earn money from open banking services. Some charge customers a monthly or yearly fee to use budgeting and money management apps. Others charge fees for processing payments or providing services such as income verification and account information.

They can also earn through partnerships with banks and other financial providers. These arrangements may involve service fees, referral payments, or shared revenue. The terms depend on the services involved and the agreement between the companies.

4. How Can Financial Services Businesses Ensure Compliant Data Sharing in the Cloud?

Financial companies using cloud services need to know where customer information is stored and who can access it. They must follow data protection laws, ask customers before sharing their records, and limit third-party access to the information needed for a service.

Cloud systems also need proper security measures. Companies can protect financial records with encryption, strong login checks, and access limits. They should review their cloud providers, keep records of who accesses the data, and decide how long customer information needs to be stored.