Register a UK establishment of an overseas company (OS IN01)
Use this form to register a UK establishment of an overseas company.
Documents
Details
Read how to complete form OS IN01 before you submit your form.
It costs £71 to register a UK establishment of an overseas company.
For more information on overseas companies, read our overseas companies guidance.
Before you register
All directors will need to verify their identity to prove who they are. You’ll need to give the Companies House personal code for each director and confirm they have verified their identity.
See Verifying your identity for Companies House.
Nationalities and countries
Use our list of nationalities and countries to complete your form. We’ll only accept entries from this standard list.
Updates to this page
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Updated in line with changes to company registers and the launch of mandatory identity verification.
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Fee updated.
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Added guidance on how to complete your OS IN01.
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Form updated following end of Brexit transition.
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Guidance added for changes from 1 January 2021.
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Link added to nationalities and countries list.
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New version uploaded
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First published.