King Charles III retains one of the British monarchy's few genuinely independent powers: the appointment of a new Prime Minister. This personal prerogative sits at the heart of the United Kingdom's constitutional settlement, distinguishing it from many modern democracies where executive succession follows more automatic parliamentary procedures. The monarch's role in this process represents a living remnant of historical sovereign authority, though exercised today within carefully defined constitutional boundaries that have evolved through custom and precedent rather than written law.
Although the sovereign possesses the formal authority to select any individual for the premiership, practical reality constrains this choice substantially. The appointed Prime Minister must command the confidence of the House of Commons, a requirement that effectively means selecting the leader of whichever party controls an overall majority of seats. This unwritten rule reflects democratic principles whilst preserving the Crown's ceremonial primacy in government formation. In scenarios where no single party holds a clear majority—as occurred in 2010 and 2017—the monarch's role potentially carries greater weight, though even then convention steers toward respecting the negotiated preferences of elected representatives.
The King's independence in this matter is genuine but exercised with considerable restraint. He need not seek ministerial advice nor consult with his government before extending an invitation to form an administration. However, prudence and constitutional convention guide his actions substantially. The outgoing Prime Minister typically proffers counsel regarding a successor's viability. The monarch may also solicit perspectives from other party leaders, senior members of the Privy Council, and respected constitutional figures. King Charles will welcome his fourth Prime Minister of the reign, following Liz Truss, Rishi Sunak, and Keir Starmer, each transition requiring these careful consultations.
The formal resignation process unfolds through carefully choreographed steps rooted in centuries of tradition. Keir Starmer has indicated his intention to step down, but this announcement—however publicised—does not constitute a formal resignation. Protocol requires the incumbent Prime Minister to journey to Buckingham Palace for a private audience with the monarch. During this face-to-face meeting, held immediately before the monarch invites the successor to form a government, Starmer will formally tender his resignation. The ceremonial nature of these proceedings reflects Britain's constitutional emphasis on personal relationships between Crown and executive, even in an era of mass communication and digital governance.
Once the Labour Party selects its new leader through internal party processes, that individual will be summoned to the palace for the appointment ceremony. Acceptance of the invitation to form a government remains the virtually invariable response, transforming the invitation into the practical moment of transition. The Court Circular, the official daily record of royal activities, will document this appointment through the traditional formula that the new Prime Minister "kissed hands"—a ceremonial phrase laden with constitutional significance though no longer universally accompanied by the literal gesture.
The actual conduct of the ceremony has evolved considerably. Incoming male Prime Ministers traditionally bow before the sovereign, while female counterparts may curtsy, though both gestures remain matters of personal preference rather than obligation. Former Prime Minister Tony Blair provided an amusing retrospective account of his 1997 appointment following Labour's landslide victory. An official briefed him that the "kissing of hands" ceremony involved no actual lip contact with royal flesh, merely a gentle brushing gesture. In the event, Blair recounted tripping on carpet and "practically falling upon the Queen's hands," to which the then-Queen Elizabeth II responded with good humour about his evident enthusiasm. Decades later, in 2010, David Cameron adopted a more restrained approach, taking the late Queen's hand without kissing it, dispensing with kneeling, and proceeding directly to the substantive conversation about government formation.
The literal kissing of hands has increasingly shifted to a later occasion, typically occurring during the new Prime Minister's initial Privy Council meeting when newly appointed ministers swear or affirm their oaths of office. The First Lord of the Treasury—the Prime Minister's formal title—participates in these ceremonies that blend medieval ceremonialism with modern parliamentary democracy. This temporal separation of symbolic gesture from practical assumption of power reflects how contemporary British governance has adapted ancient forms to modern circumstances, maintaining ceremonial continuity while streamlining functional succession.
Once installed, the Prime Minister enters into a formal weekly relationship with the monarch that has defined British governance since the 18th century. Following Prime Minister's Questions in Parliament, the new leader travels to the palace for a private Wednesday audience with King Charles. These conversations, conducted face to face in the sovereign's study, provide the monarch with comprehensive briefings on government business and allow the Crown to exert informal influence on policy direction. Although the King must maintain scrupulous political neutrality in public matters, these private conversations permit him to advise, warn, and counsel his ministers.
The monarch's advisory role operates within well-understood constitutional limits refined through long practice. The sovereign cannot direct government policy nor overturn ministerial decisions, but possesses genuine capacity to encourage reconsideration of significant matters. This influence derives not from formal constitutional powers but from the personal relationship between Crown and executive, the monarch's experience spanning multiple administrations, and the inherent weight of the institution. For a new Prime Minister, these Wednesday audiences represent both opportunity and constraint—access to wisdom accumulated through decades of monitoring British governance, but also implicit expectation of deference to the institution the Crown represents.
The appointment process itself demonstrates how parliamentary democracy and constitutional monarchy coexist in the British system. Rather than conflicting, these elements reinforce each other. The monarch's role provides ceremonial legitimacy and constitutional continuity whilst elected representatives through party processes actually determine which individual the sovereign invites to form government. This arrangement has proven sufficiently flexible to accommodate radical shifts in political control, personalities, and policy direction without constitutional crisis. King Charles III's forthcoming appointment of a successor thus represents not merely a procedural necessity but an affirmation of constitutional principles that have sustained British governance through centuries of political upheaval and societal transformation.
