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.
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
Last updated 1 May 2024 + show all updates
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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.