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  4. Oec Electrical Systems Ltd

Oec Electrical Systems Ltd

ActiveNo accounts filed yet accountsElectriciansSouthampton
Company number
17172667
Incorporated
21 Apr 2026
Registered office
Unit 1 Long Barn Wangfield Lane, Curdridge, Southampton, SO32 2DA
Nature of business
Electrical installation; Security systems service activities
Accounts due in
466 days
21 Jan 2028
From the Companies House register, 1 Oct 2026

Oec Electrical Systems Ltd is a newly incorporated private limited company registered in Southampton, company number 17172667, one of 342 electrical contractors in Southampton. Its next accounts are due at Companies House on 21 January 2028, and its first CT600 is due at HMRC on 20 April 2028.

Key dates

This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.

Accounts due
21 Jan 2028
in 466 days
For the period to 30 Apr 2027
CT600 due (first of two)
20 Apr 2028
in 556 days
Period 21 Apr 2026 to 20 Apr 2027
CT600 due (second of two)
30 Apr 2028
in 566 days
Period 21 Apr 2027 to 30 Apr 2027
Corporation tax payment
1 Feb 2028
in 477 days
9 months and 1 day after the period end
Confirmation statement
4 May 2027
in 204 days

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Where Oec Electrical Systems Ltd is registered

Oec Electrical Systems Ltd's registered office on a map of the UK

The registered office is in Southampton (SO32), in the Winchester local authority area, South East. Show SO32 2DA on a map.

Other trade companies in SO32

What happens if Oec Electrical Systems Ltd 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 21 January 2028.

Companies HouseAccounts deliveredPenalty
Up to 1 month late22 Jan 2028 to 21 Feb 2028£150
1 to 3 months late22 Feb 2028 to 21 Apr 2028£375
3 to 6 months late22 Apr 2028 to 21 Jul 2028£750
More than 6 months lateFrom 22 Jul 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 May 2028£200
3 months late30 Jul 2028another £200
6 months late30 Oct 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2029another 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
17172667
Status
Active
Company type
Private limited company
Incorporated
21 April 2026
Registered office
Unit 1 Long Barn Wangfield Lane, Curdridge, Southampton, SO32 2DA
Nature of business
Electrical installation (SIC 43210)
Security systems service activities (SIC 80200)
Year end
30 April (accounting reference date)
Accounts type
No accounts filed yet
Charges (mortgages)
1 outstanding of 1 registered

Filing notes for electrical contractors

Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.

Similar companies in Southampton

Other active electrical contractors registered in Southampton.

All electrical contractors in Southampton · All trades in Southampton · Electricians across the UK

Frequently asked questions

When are Oec Electrical Systems Ltd's accounts due?

Oec Electrical Systems Ltd's next accounts are due at Companies House by 21 January 2028 (in 466 days), covering the period to 30 April 2027.

When is Oec Electrical Systems Ltd's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 20 April 2027, due by 20 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is Oec Electrical Systems Ltd still trading?

Oec Electrical Systems Ltd 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 Oec Electrical Systems Ltd do?

Oec Electrical Systems Ltd is registered under Electrical installation (SIC 43210); Security systems service activities (SIC 80200).

How old is Oec Electrical Systems Ltd?

Oec Electrical Systems Ltd was incorporated on 21 April 2026, less than a year ago.

What is the penalty if Oec Electrical Systems Ltd 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 Oec Electrical Systems Ltd 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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