Companies House filing codes explained

CS01 is the confirmation statement form When you see CS01 in filing history, you are looking at a confirmation statement filing rather than a director appointment or termination event.

A CS01 is a review checkpoint It often marks the moment to recheck officers, PSCs, and other core company details rather than assuming nothing changed.

The code alone does not explain every update You still need the surrounding filing history and current company record if you want to understand what actually moved.

AP01 signals a director appointment When AP01 appears, it normally means a new director appointment has been filed on the public record.

It is a board-change signal, not a confirmation statement filing AP01 is about the appointment event itself rather than the broader annual confirmation statement cycle.

A new director can create fresh follow-up work The next step is usually to review the current officer list, the appointment date, and any adjacent verification or filing tasks.

TM01 signals a director appointment ended When TM01 appears, the key takeaway is that a director appointment has been terminated on the public record.

TM01 is a governance-change event It can materially change who remains on the board and who your team should be reviewing next.

The code alone does not explain why the appointment ended You need the wider company context if you are trying to understand whether this was routine succession, resignation, or something more sensitive.

CH01 signals an existing director record changed When CH01 appears, the key takeaway is that Companies House has recorded a change to director details rather than a fresh appointment or resignation.

It is not the same as AP01 or TM01 CH01 is about detail changes on an existing director record, while AP01 and TM01 are about the appointment starting or ending.

The code alone does not tell you which field changed You still need the live company record if you want to see exactly what detail moved on the director entry.

PSC01 usually points to an individual PSC being put on the record When PSC01 appears, the practical meaning is that Companies House has recorded an individual person with significant control notice on the register.

It is an ownership or control signal, not a director appointment filing PSC01 belongs to the PSC side of the record rather than the board-appointment side.

The code alone does not explain the full control picture You still need the live PSC section if you want to understand the nature of control and how it fits with the rest of the register.

AD01 signals a registered office address change When AD01 appears, the key point is that the company's registered office on the public record has changed.

It is a company-level address filing AD01 is not a board appointment, a PSC notice, or a confirmation statement filing.

The code alone does not tell you why the address changed You still need the wider company context if you want to know whether this was routine administration, a provider switch, or part of a broader change.

CH02 signals a corporate director record changed When CH02 appears, the public register is telling you that the details of an existing corporate director were amended.

It is not an appointment or termination filing CH02 is about changing the record attached to a corporate director, not about the board position starting or ending.

The code alone does not tell you which field changed You still need the live company record if you want to see the exact detail amendment.

PSC02 points to a relevant legal entity with significant control When PSC02 appears, the practical meaning is that Companies House has recorded a relevant legal entity with significant control on the register.

It is an ownership and control signal PSC02 belongs to the PSC side of the record rather than the board-appointment side.

The code alone does not explain the full structure You still need the live PSC section to understand how the control entry fits into the wider ownership picture.

AD02 signals a single alternative inspection location was registered When AD02 appears, the company has put a SAIL position onto the public record.

It is a company-record administration filing AD02 is not a board appointment, a PSC notice, or a registered office change filing.

The code alone does not tell you why the SAIL was used You still need the wider company context if you want to understand whether this was routine admin, a provider change, or part of a wider operating shift.

PSC04 signals an individual PSC record changed When PSC04 appears, the public register is telling you that the details of an existing individual person with significant control were amended.

It is not a new PSC or ceased-PSC filing PSC04 is about changing an existing PSC record, not putting a PSC on the register for the first time or removing one from it.

The code alone does not tell you which field changed You still need the live PSC section to see the exact amendment and its operational significance.

PSC05 signals a relevant legal entity PSC record changed When PSC05 appears, the public register is telling you that the details of an existing relevant legal entity with significant control were amended.

It is not a new entity PSC or ceased-PSC filing PSC05 is about changing an existing entity-based PSC record, not putting that entity on the register for the first time or removing it.

The code alone does not tell you which field changed You still need the live PSC section to see the exact amendment and how it affects the control picture.

PSC07 signals an individual PSC ceased When PSC07 appears, the practical meaning is that an individual person with significant control has ceased to be recorded in that position on the register.

It is an ownership-exit signal PSC07 is not a detail amendment or a new PSC notice. It points to a control relationship ending on the public record.

The code alone does not explain the full background You still need the live PSC section and surrounding filings if you want to understand the wider context around the cessation.