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  4. Efficient Energy Systems Ltd

Efficient Energy Systems Ltd

ActiveNo accounts filed yet accountsCivil engineeringClitheroe
Company number
17329387
Incorporated
9 Jul 2026
Registered office
The Former Ambulance Station, Princess Avenue, Clitheroe, BB7 2AL
Nature of business
Construction of utility projects for electricity and telecommunications; Electrical installation; Plumbing, heat and air-conditioning installation; Other building completion and finishing
Accounts due in
545 days
9 Apr 2028
From the Companies House register, 1 Oct 2026

Efficient Energy Systems Ltd is a newly incorporated private limited company registered in Clitheroe, company number 17329387, one of 14 civil engineering contractors in Clitheroe. Its next accounts are due at Companies House on 9 April 2028, and its first CT600 is due at HMRC on 8 July 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
9 Apr 2028
in 545 days
For the period to 31 Jul 2027
CT600 due (first of two)
8 Jul 2028
in 635 days
Period 9 Jul 2026 to 8 Jul 2027
CT600 due (second of two)
31 Jul 2028
in 658 days
Period 9 Jul 2027 to 31 Jul 2027
Corporation tax payment
1 May 2028
in 567 days
9 months and 1 day after the period end
Confirmation statement
22 Jul 2027
in 283 days

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Where Efficient Energy Systems Ltd is registered

Efficient Energy Systems Ltd's registered office on a map of the UK

The registered office is in Clitheroe (BB7), in the Ribble Valley local authority area, North West. Show BB7 2AL on a map.

Other trade companies in BB7

What happens if Efficient Energy 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 9 April 2028.

Companies HouseAccounts deliveredPenalty
Up to 1 month late10 Apr 2028 to 9 May 2028£150
1 to 3 months late10 May 2028 to 9 Jul 2028£375
3 to 6 months late10 Jul 2028 to 9 Oct 2028£750
More than 6 months lateFrom 10 Oct 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Aug 2028£200
3 months late31 Oct 2028another £200
6 months late31 Jan 2029HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jul 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
17329387
Status
Active
Company type
Private limited company
Incorporated
9 July 2026
Registered office
The Former Ambulance Station, Princess Avenue, Clitheroe, BB7 2AL
Nature of business
Construction of utility projects for electricity and telecommunications (SIC 42220)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other building completion and finishing (SIC 43390)
Year end
31 July (accounting reference date)
Accounts type
No accounts filed yet

Filing notes for civil engineering contractors

Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.

Similar companies in Clitheroe

Other active civil engineering contractors registered in Clitheroe.

All civil engineering contractors in Clitheroe · All trades in Clitheroe · Civil engineering across the UK

Frequently asked questions

When are Efficient Energy Systems Ltd's accounts due?

Efficient Energy Systems Ltd's next accounts are due at Companies House by 9 April 2028 (in 545 days), covering the period to 31 July 2027.

When is Efficient Energy 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 8 July 2027, due by 8 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is Efficient Energy Systems Ltd still trading?

Efficient Energy 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 Efficient Energy Systems Ltd do?

Efficient Energy Systems Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other building completion and finishing (SIC 43390).

How old is Efficient Energy Systems Ltd?

Efficient Energy Systems Ltd was incorporated on 9 July 2026, less than a year ago.

What is the penalty if Efficient Energy 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 Efficient Energy 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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