May 4, 2026

Consent Management in Open Banking Ecosystems

Open banking has fundamentally reshaped the way financial data flows between institutions, fintechs, and consumers in the UK. Since the Competition and Markets Authority mandated the Open Banking Implementation Entity in 2018, the ecosystem has matured rapidly, with millions of consumers now sharing their financial data through regulated third-party providers to access better products, faster decisions, and more personalised services. At the heart of this entire framework sits a concept that is deceptively simple in principle but enormously complex in practice: consent. Every data-sharing transaction in open banking begins with a consumer granting explicit permission for their information to be accessed, and managing that consent properly is not merely a regulatory obligation but a foundational requirement for maintaining the trust that the entire ecosystem depends upon.

The regulatory architecture governing consent in UK open banking draws from multiple overlapping frameworks. The Payment Services Regulations 2017, the UK General Data Protection Regulation, and the FCA’s own guidance for Account Information Service Providers and Payment Initiation Service Providers all impose specific requirements around how consent must be obtained, recorded, and revoked. Consent must be informed, meaning the consumer must understand precisely what data will be accessed, by whom, and for what purpose. It must be specific, relating to a defined scope of data rather than a blanket agreement to share everything. And it must be freely given, without coercion or pre-ticked boxes that assume agreement. For lenders and other financial services firms operating within the open banking ecosystem, navigating these overlapping requirements demands sophisticated consent management infrastructure that goes well beyond a simple permissions dialogue.

The Operational Challenge

In practice, consent management in open banking presents a series of interconnected operational challenges that grow more complex as firms scale their use of open banking data. The first and most immediate challenge is the consent journey itself, the user-facing process through which a consumer grants permission to share their data. This journey needs to be clear enough to satisfy regulatory requirements around informed consent, concise enough that consumers actually engage with it rather than clicking through without reading, and smooth enough that it does not create excessive friction that causes applicants to abandon the process entirely. Striking this balance is harder than it sounds, particularly when the data being requested spans multiple accounts across different institutions, each with its own authentication requirements. A poorly designed consent journey does not just frustrate consumers; it undermines the validity of the consent itself if regulators determine that the consumer could not reasonably have understood what they were agreeing to.

Beyond the initial grant, consent must be actively managed throughout its lifecycle. Open banking consents in the UK are typically time-limited, with a maximum duration of ninety days before re-authorisation is required, though many providers opt for shorter windows depending on the use case. For lenders using open banking data in ongoing affordability monitoring or account management, this creates a recurring operational requirement to prompt consumers for re-consent at the appropriate intervals, handle cases where re-consent is not granted, and ensure that data access ceases immediately when a consent window expires or is actively revoked. The technical infrastructure needed to manage this reliably at scale, tracking consent status across thousands or millions of customer relationships, triggering re-consent workflows at the right moments, and ensuring that revocation propagates instantly through all downstream systems, is a significant engineering undertaking that many firms underestimate when they first integrate open banking into their processes.

Building Trust Through Transparency

The strategic dimension of consent management extends beyond compliance into the broader question of consumer trust. Research consistently indicates that consumers’ willingness to share financial data through open banking is closely tied to their confidence that they understand and control how that data is used. Firms that treat consent as a one-time regulatory hurdle, something to be obtained as quickly as possible before moving on to the business of using the data, are missing an opportunity to differentiate themselves through transparency. The most effective consent management strategies position the consent journey as an ongoing relationship rather than a single transaction, giving consumers clear visibility into what data is being accessed, straightforward mechanisms to modify or revoke their permissions, and proactive communication about how their information is being used. This approach aligns with the spirit of the Consumer Duty, which requires firms to act in ways that deliver good outcomes for retail customers, including ensuring that consumers are equipped to make informed decisions about their financial data.

From a technical architecture perspective, robust consent management requires centralised consent records that serve as a single source of truth across the organisation. When consent data is fragmented across multiple systems, the risk of continuing to access data after consent has been revoked, or failing to recognise that consent has expired, increases substantially. A centralised consent management platform should maintain an immutable audit trail of every consent event, including grants, modifications, revocations, and expirations, linked to the specific data categories and purposes covered by each consent. This audit trail is essential not only for regulatory compliance but also for responding to consumer complaints and subject access requests under UK GDPR. The platform should also integrate with the firm’s API gateway to enforce consent status in real time, automatically blocking data requests that are not covered by a valid, current consent.

Looking ahead, the consent management challenge is likely to intensify rather than diminish. The FCA’s ongoing work on open finance, which would extend data-sharing frameworks beyond banking into areas such as insurance, pensions, and investments, will dramatically increase the volume and complexity of consent relationships that firms need to manage. The potential introduction of smart data schemes across other sectors of the economy, as envisaged by the Data Protection and Digital Information Act, adds further dimensions. Firms that invest in scalable, well-architected consent management infrastructure now will be better positioned to adapt as these frameworks evolve, whilst those that treat consent as an afterthought risk finding themselves unable to participate effectively in the broader data-sharing economy that is taking shape. In an ecosystem built entirely on the principle that consumers should control their own financial data, the quality of consent management is not a peripheral concern. It is the mechanism through which that principle is either honoured or undermined.

Written by benh