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Glossary

AOA

What AOA means, where you will meet it and what it means for your business.

Written by the BizExpress team. Last updated 19 September 2026.

DefinitionThe Articles of Association (AOA) are a company's internal rulebook, setting how shares are issued and transferred, how directors are appointed, and how meetings and decisions work.

The AOA is filed with SPICe+ at incorporation alongside the MOA. Most new companies adopt the model articles in Table F of the Companies Act 2013 with a few changes, which is fine until an investor arrives. You meet the AOA again whenever the company does something the default rules do not cover: creating preference shares, restricting share transfers, giving a shareholder a board seat, or adopting an ESOP scheme. Investors insist that the key terms of the shareholders agreement are written into the AOA, because a company is bound by its articles but not by a private contract between shareholders. Changing the AOA needs a special resolution and Form MGT-14 within 30 days. Keep a current copy; banks and due diligence teams ask for it.