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United Kingdom Act

Companies Act 2006

The Companies Act 2006 is the main UK company law statute. It affects company formation, directors' duties, shareholder decisions, company...

In forceUnited KingdomPlain-English guide4 practical checks

Plain-English explainers, not legal advice. Use the linked official source for section-level detail, and get advice for your situation.

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Quick read

  • For most UK companies, this is the rulebook behind everyday governance.
  • It matters when founders appoint directors, issue shares, keep registers, approve decisions, file accounts or handle conflicts of interest.

Likely relevant if

  • Private limited companies
  • Company directors
  • Founders issuing shares or changing control

Check first

  • Keep company registers and Companies House filings up to date
  • Make board and shareholder decisions through the right process
  • Understand directors' duties before approving conflicted or high-risk decisions

What this means in practice

For most UK companies, this is the rulebook behind everyday governance. It matters when founders appoint directors, issue shares, keep registers, approve decisions, file accounts or handle conflicts of interest. Small companies do not need to read every section, but directors should know the duties and filing habits that keep the company in good standing.

Key points

  • Director duties are not just paperwork. They shape conflicts, dividends, transactions with connected people and decisions made under pressure.
  • Companies House filings should match the company's real constitution and ownership records.
  • Share issues, transfers and investor changes should be recorded properly before everyone forgets what was agreed.

When this law usually matters

Most businesses do not need to memorise the whole law. The useful starting point is to know when it is likely to affect a contract, customer journey, employee process, data flow or company decision.

Key points

  • Private limited companies
  • Company directors
  • Founders issuing shares or changing control
  • Businesses preparing accounts or Companies House filings

What to check first

Sense check

  • Keep company registers and Companies House filings up to date
  • Make board and shareholder decisions through the right process
  • Understand directors' duties before approving conflicted or high-risk decisions
  • Check accounts, confirmation statements and registered-office details on time

Documents and workflows to review

Key points

  • Articles of association
  • Shareholders agreement
  • Board minutes and written resolutions
  • PSC register and statutory registers
  • Companies House confirmation statement

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