UK Societas
A legacy public company form. Any Societas Europaea (SE) still registered in the UK became a UK Societas automatically from 1 January 2021, and no new one can be formed.
- Entiva fee to form
- $259
- Government fees to form
- None listed
- Run plan
- $49 a month
- Ways to close
- 2
Who it suits, and what defines it.
Governed by the Council Regulation (EC) 2157/2001, as retained.

Who it suits
- Groups that already hold a UK Societas.
- Groups that want to convert a UK Societas into a PLC.
Key facts
- Legal form
- A legacy public company
- New formation
- Not possible
- Origin
- Converted from an SE on 1 January 2021
- Transfers
- Not possible into or out of the UK
- Statute changes
- Made on form SE AS01
- Conversion
- Can convert to a PLC
- Law
- Council Regulation (EC) 2157/2001, as retained
What the law requires.
5 rules, each in plain words.
No new formation is possible
An SE can no longer be formed in, or transferred into or out of, the UK.
Supervisory organ members notified on SE forms
Members of an administrative or management organ use the company director forms.
Statute changes on form SE AS01
Insolvency events on form SE WU01
Conversion to a PLC
A UK Societas may convert to a PLC using forms SE DT03 and SE CV01.
The changes Entiva handles.
Each change is prepared, approved, signed and filed.
The most common changes
4 changes- Call a meeting after a serious loss of capital
- Record who holds an interest in the shares
- Notify the draft terms of conversion
- Convert the Societas into a public limited company
How it closes.
2 routes. The right one depends on whether it can pay its debts, and who starts it.
Conversion to a PLC
When the Societas should become an ordinary UK public company.
- 1
Notify the draft terms of conversion
- 2
Meet any conversion conditions
- 3
Convert the Societas into a public limited company
Winding up
When the Societas is to be wound up.
- 1
Notify the insolvency event on form SE WU01
- 2
The entity is dissolved
What Entiva does for you.
From the first filing to the last.
UK Societas
- Calls the meeting after a serious loss of capital and sends the notice to members.Governance
- Keeps the register of interests and enters each reply within 3 days.Governance
- Prepares and posts form SE DT03 with the draft terms of conversion.Restructuring
- Prepares and posts form SE CV01 to convert the Societas into a PLC.Restructuring
Build it with the API.
Every step on this page is an action in the Entiva API, with its documents, signatures and filing.
What it costs, item by item.
Every Entiva fee and every government fee, from forming it to closing it.
Forming it
$259one-off
- Government fees
- None listed
Closing it
Quoted before it starts
- Entiva fee
- Fixed, quoted first
- Government fees
- At cost
Included in the Run plan
- Routine changes
- Every deadline tracked
Extra, at a fixed fee
- Notify the draft terms of conversion
- Convert the Societas into a public limited company
Each extra is quoted before it starts, and nothing is done until you approve it.
Changes
Routine changes are included in the Run plan.
Closing it
Closing is a fixed-fee project, quoted before it starts.
Entiva fees are in US dollars. Government fees are in the currency each authority charges, passed through at cost when the filing is made. Taxes are separate.
Start with your first company.
We are onboarding a small group of founders and finance teams with entities in more than one country.