LINK (interbank network)

LINK (interbank network)
Name	LINK
Type	Private company
Industry	Financial services
Founded	1985
Headquarters	London, United Kingdom
Area served	United Kingdom, Isle of Man, Channel Islands
Services	ATM network, interbank switching, cash access
Owners	UK banks and building societies

LINK (interbank network)

LINK is the primary interbank ATM and cash access network serving the United Kingdom, the Isle of Man and the Channel Islands. It connects machines operated by major retail banks and building societies to enable cash withdrawals, balance enquiries and some interbank services across disparate providers. LINK plays a central role in retail Bank of England currency circulation, interacts with payment systems such as Faster Payments Service participants, and integrates with retail infrastructure run by institutions like Tesco Bank and Barclays.

Overview

LINK operates as a shared switching and settlement network that routes ATM transactions among member institutions including retail banks, building societies and independent cash machine operators. The network enables interoperability among participants such as Lloyds Banking Group, HSBC, NatWest Group and Santander UK, while also supporting independent operators like Cardtronics and regional providers. LINK interfaces with central institutions including the Bank of England and clearing mechanisms used by the Bankers' Automated Clearing Services and connects to card schemes like Visa and Mastercard where cross-border cash access is required.

History

LINK was established in 1985 as a response to the proliferation of incompatible cash machines and to provide ubiquitous access to cash for customers of different institutions. Early participants included major UK banks and building societies such as Barclays Bank, Royal Bank of Scotland and Nationwide Building Society. Through the 1990s and 2000s LINK navigated regulatory changes influenced by bodies like the Office of Fair Trading and later the Competition and Markets Authority, and adapted to technological shifts including EMV migration coordinated with vendors such as Diebold Nixdorf and NCR Corporation. LINK’s evolution parallels developments in other networks like Cirrus and PLUS and responded to trends set by retail players including Sainsbury's bank and multinational acquirers such as Worldpay.

Ownership and Governance

LINK is owned collectively by its member institutions, comprising a mix of major banks, building societies and independent ATM operators. Governance structures include a board drawn from members representing groups such as HSBC UK, Virgin Money UK, TSB Bank and independent operators. Decision-making channels interact with external regulators including the Payment Systems Regulator and the Financial Conduct Authority, and LINK’s corporate governance reflects standards used by listed firms like Barclays plc and Lloyds Banking Group plc despite its mutual ownership model. LINK also engages with trade bodies such as the UK Finance association.

Network Services and Technology

LINK provides core services including ATM switching, interbank settlement, merchant cash-back routing and surcharge messaging. The network supports transaction types used by card schemes such as Visa Debit, Mastercard Debit, and prepaid products from issuers like Revolut and Monzo, while integrating authentication standards aligned with EMV managed by consortia like EMVCo. LINK’s technology stack historically relied on proprietary switching systems, migrating toward resilient platforms that incorporate vendors such as Tandem and cloud services used by financial processors like Fiserv. LINK also supports connectivity with mobile and digital wallets issued by platforms including Apple Pay, Google Pay and banking apps from Metro Bank.

Membership and Reach

LINK’s membership includes major retail banks, regional banks, building societies and independent cash machine operators, providing access to tens of thousands of ATMs across the United Kingdom, the Isle of Man and the Channel Islands. Members include nationwide institutions like HSBC, Santander UK, NatWest Group and mutuals such as Yorkshire Building Society, alongside independent operators and international acquirers. The network’s geographic reach covers urban and rural communities and connects to commercial partners such as supermarket banks run by Asda Bank and travel-focused issuers like Clydesdale Bank.

Security and Fraud Prevention

LINK implements security measures consistent with standards promoted by bodies like the Financial Conduct Authority and international frameworks from Payment Card Industry Security Standards Council. Measures include EMV chip migration, point-to-point encryption, transaction monitoring systems deployed by processors akin to ACI Worldwide, and collaboration with law enforcement agencies such as the National Crime Agency to combat cash-out fraud. LINK also supports anti-skimming initiatives coordinated with manufacturers like Ingenico and public awareness campaigns often aligned with campaigns by Which? and consumer protection agencies.

Regulation and Compliance

LINK operates within a regulatory environment overseen by the Payment Systems Regulator and the Financial Conduct Authority, and must comply with UK legislation including directives derived from the European Union Payments framework prior to domestic reforms. Compliance areas include settlement finality, access rules influenced by the Competition and Markets Authority and obligations related to financial crime prevention under regimes administered by HM Treasury and Her Majesty's Revenue and Customs. LINK’s rules and participant agreements reflect regulatory requirements similar to those applied to infrastructure providers such as CHAPS and central counterparties.

Category:Banking in the United Kingdom Category:Payment networks