- Companies
- Builders
- Maidenhead
- Cis Electrical Ltd
Cis Electrical Ltd
- Company number
- 16829347
- Incorporated
- 3 Nov 2025
- Registered office
- 59 Ray Lea Road, Maidenhead, SL6 8QG
- Nature of business
- Construction of commercial buildings; Electrical installation
Cis Electrical Ltd is a newly incorporated private limited company registered in Maidenhead, company number 16829347, one of 110 building contractors in Maidenhead. Its next accounts are due at Companies House on 3 August 2027, and its first CT600 is due at HMRC on 2 November 2027.
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?
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Where Cis Electrical Ltd is registered
The registered office is in Maidenhead (SL6), in the Windsor and Maidenhead local authority area, South East. Show SL6 8QG on a map.
Other trade companies in SL6
- B&M Cleaning Solutions LtdCleaning companies
- CC Garden Builds LtdBuilders
- Austin Groundwork Surfaces LimitedGroundworks and demolition
- Woodnest Interiors LtdJoiners and carpenters
- Carizmatic Company LimitedMotor traders
- Sakura Electrical LtdElectricians
- Elite Autos & Tyres LtdMotor traders
- Bigfrith End LtdSpecialist contractors
What happens if Cis Electrical 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 3 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Aug 2027 to 3 Sep 2027 | £150 |
| 1 to 3 months late | 4 Sep 2027 to 3 Nov 2027 | £375 |
| 3 to 6 months late | 4 Nov 2027 to 3 Feb 2028 | £750 |
| More than 6 months late | From 4 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 2028 | 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
- 16829347
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 November 2025
- Registered office
- 59 Ray Lea Road, Maidenhead, SL6 8QG
- Nature of business
- Construction of commercial buildings (SIC 41201)
Electrical installation (SIC 43210) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Maidenhead
Other active building contractors registered in Maidenhead.
- Copas Brothers (Construction) Limited2017
- Core Commercial Construction Ltd2024
- CP Construction Services Ltd2024
- Cube4 Limited2018
- Dance Properties Ltd2022
- DCS Building Services Ltd2022
- DCS Services Ltd.2016
- Ditton Design & Build Limited2022
All building contractors in Maidenhead · All trades in Maidenhead · Builders across the UK
Frequently asked questions
When are Cis Electrical Ltd's accounts due?
Cis Electrical Ltd's next accounts are due at Companies House by 3 August 2027 (in 295 days), covering the period to 30 November 2026.
When is Cis Electrical 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 2 November 2026, due by 2 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cis Electrical Ltd still trading?
Cis Electrical 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 Cis Electrical Ltd do?
Cis Electrical Ltd is registered under Construction of commercial buildings (SIC 41201); Electrical installation (SIC 43210).
How old is Cis Electrical Ltd?
Cis Electrical Ltd was incorporated on 3 November 2025, less than a year ago.
What is the penalty if Cis Electrical 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 Cis Electrical Ltd 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.