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  4. Poseidon Technology Limited

Poseidon Technology Limited

ActiveMicro-entity accountsProperty developersBirmingham
Company number
12044974
Incorporated
11 Jun 20197 years trading
Registered office
50 Rednal Road, Kings Norton, Birmingham, B38 8DR
Nature of business
Development of building projects; Construction of domestic buildings; Other activities of employment placement agencies
Accounts due in
170 days
31 Mar 2027
From the Companies House register, 1 Oct 2026

Poseidon Technology Limited is a 7-year-old private limited company registered in Birmingham, company number 12044974, one of 1,027 property development companies in Birmingham. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Mar 2027
in 170 days
For the period to 30 Jun 2026
CT600 due
30 Jun 2027
in 261 days
Period 1 Jul 2025 to 30 Jun 2026
Corporation tax payment
1 Apr 2027
in 171 days
9 months and 1 day after the period end
Confirmation statement
5 Mar 2027
in 144 days
Last made up to 19 Feb 2026

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Where Poseidon Technology Limited is registered

Poseidon Technology Limited's registered office on a map of the UK

The registered office is in Birmingham (B38), in the Birmingham local authority area, West Midlands. Show B38 8DR on a map.

Other trade companies in B38

What happens if Poseidon Technology Limited files late

Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 March 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Apr 2027 to 30 Apr 2027£150
1 to 3 months late1 May 2027 to 30 Jun 2027£375
3 to 6 months late1 Jul 2027 to 30 Sep 2027£750
More than 6 months lateFrom 1 Oct 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Jul 2027£200
3 months late30 Sep 2027another £200
6 months late30 Dec 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Jun 2028another 10% of any unpaid tax

For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.

Company details

As held on the Companies House register.

Company number
12044974
Status
Active
Company type
Private limited company
Incorporated
11 June 2019 (7 years ago)
Registered office
50 Rednal Road, Kings Norton, Birmingham, B38 8DR
Nature of business
Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202)
Other activities of employment placement agencies (SIC 78109)
Year end
30 June (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
30 June 2025
Last confirmation statement
19 February 2026
Charges (mortgages)
0 outstanding of 8 registered

Filing notes for property development companies

Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.

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Frequently asked questions

When are Poseidon Technology Limited's accounts due?

Poseidon Technology Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.

When is Poseidon Technology Limited's CT600 due?

The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.

Is Poseidon Technology Limited still trading?

Poseidon Technology Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.

What does Poseidon Technology Limited do?

Poseidon Technology Limited is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202); Other activities of employment placement agencies (SIC 78109).

How old is Poseidon Technology Limited?

Poseidon Technology Limited was incorporated on 11 June 2019, 7 years ago.

What is the penalty if Poseidon Technology Limited files its accounts late?

Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.

Official records

View Poseidon Technology Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.

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