Open Banking is an initiative mandated by the UK’s Competition and Markets Authority (CMA) in 2017. It is intended to facilitate better competition in the banking sector by mandating protocols that facilitate the secure sharing of customer-related data of the nine largest banks in the United Kingdom (CMA9) with third-party providers (TPPs).
Open Banking is developed and delivered in the United Kingdom by the Open Banking Implementation Entity (OBIE). The OBIE was established by the CMA and is funded by the CMA9. The CMA’s UK Retail Banking Market Investigation Order 2017 (Order), which applies only to the CMA9, requires the CMA9 to provide their customers with the ability to access and share their account data on an ongoing basis with TPPs through the use of specified application programme interfaces (APIs). This compliments the reforms under the EU’s Second Payment Directive (as transposed in the United Kingdom primarily by the Payment Services Regulations 2017), which requires all payment account providers to permit open access to payment accounts for authorized TPPs, but which does not specify the means of access or prescribe the scope of access in any detail.