- Companies
- Electricians
- Leamington Spa
- Efficiency Company Limited
Efficiency Company Limited
- Company number
- 17425560
- Incorporated
- 28 Aug 2026
- Registered office
- 15 Littleworth Croft, Leamington Spa, CV31 1AL
- Nature of business
- Electrical installation; Sale of used cars and light motor vehicles; Other letting and operating of own or leased real estate
Efficiency Company Limited is a newly incorporated private limited company registered in Leamington Spa, company number 17425560, one of 49 electrical contractors in Leamington Spa. Its next accounts are due at Companies House on 28 May 2028, and its first CT600 is due at HMRC on 27 August 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.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Efficiency Company LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Efficiency Company Limited is registered
The registered office is in Leamington Spa (CV31), in the Warwick local authority area, West Midlands. Show CV31 1AL on a map.
Other trade companies in CV31
- MLD Builders LtdBuilders
- Mandas Builders LtdBuilders
- Cobblers & Keys Locksmiths LtdMechanics and garages
- Ac Speedshop LtdMotor traders
- Jude Cleaning LtdCleaning companies
- Blue Elephant Flat Roofing LtdRoofers
- Powell-Brett Associates LimitedCivil engineering
- Mayfair Automobiles LtdMotor traders
What happens if Efficiency Company 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 28 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 May 2028 to 28 Jun 2028 | £150 |
| 1 to 3 months late | 29 Jun 2028 to 28 Aug 2028 | £375 |
| 3 to 6 months late | 29 Aug 2028 to 28 Nov 2028 | £750 |
| More than 6 months late | From 29 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2029 | another 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
- 17425560
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 August 2026
- Registered office
- 15 Littleworth Croft, Leamington Spa, CV31 1AL
- Nature of business
- Electrical installation (SIC 43210)
Sale of used cars and light motor vehicles (SIC 45112)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 8 September 2026
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 Leamington Spa
Other active electrical contractors registered in Leamington Spa.
- Everglow Electrical Limited2026
- Expert Electrical Services Ltd2018
- HD Electrical (Midlands) Limited2020
- Industrial Steel & Cladding Limited1998
- Installation Av Limited2013
- JL Electrical Warwickshire Limited2007
- JRP Holdings Ltd2021
- KC Electrical & Building Solutions Ltd2023
All electrical contractors in Leamington Spa · All trades in Leamington Spa · Electricians across the UK
Frequently asked questions
When are Efficiency Company Limited's accounts due?
Efficiency Company Limited's next accounts are due at Companies House by 28 May 2028 (in 593 days), covering the period to 31 August 2027.
When is Efficiency Company Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 August 2027, due by 27 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Efficiency Company Limited still trading?
Efficiency Company 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 Efficiency Company Limited do?
Efficiency Company Limited is registered under Electrical installation (SIC 43210); Sale of used cars and light motor vehicles (SIC 45112); Other letting and operating of own or leased real estate (SIC 68209).
How old is Efficiency Company Limited?
Efficiency Company Limited was incorporated on 28 August 2026, less than a year ago.
What is the penalty if Efficiency Company 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 Efficiency Company Limited on Companies House for filed documents, officers and the full history.
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.