Is it legal to edit your own Wikipedia article if you disclose who you are?

Legality is the wrong frame – Wikipedia is not a legal jurisdiction – but the policy answer is yes. Wikipedia’s WP:PAID and WP:COI policies explicitly permit interested-party editing under specific conditions: public disclosure of the relationship on the editor’s user page, in Talk page contributions, and in edit summaries; engagement through Talk-page edit requests rather than direct article edits; reliable secondary sources for proposed changes; and neutral encyclopedic tone in proposed content. This is the disclosed-COI model that Five Blocks operates under and that the major PR firms and law firms increasingly require their reputation partners to use. Editing without disclosure – sockpuppet accounts, anonymous edits, undisclosed compensation – is the version that breaks the rules and creates the lasting damage clients hire firms to avoid.