Company profile · Electricians
3Cix Ltd
3Cix Ltd is a 5-year-old private limited company registered in Milton Keynes, company number 13231434, one of 165 electrical contractors in Milton Keynes. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 December 2025, as filed at Companies House.
3Cix Ltd over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £160K (+70.4%) on the year before, to £388K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £679K against £448K owed within a year: 1.5 times cover.
- 49 employees on average, up from 45 the year before.
- Balance sheets on record for 5 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £388K | £51K | £679K | £448K | 49 |
| 31 Dec 2024 | £228K | £38K | £605K | £427K | 45 |
| 31 Dec 2023 | £144K | £75K | £317K | £190K | 30 |
| 31 Dec 2022 | £45K | £79K | £295K | £211K | 25 |
| 28 Feb 2022 | -£22K | £46K | £64K | £94K | 1 |
Where 3Cix Ltd is registered
The registered office is in Milton Keynes (MK16), in the Milton Keynes local authority area, South East. Show MK16 9EY on a map.
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What happens if 3Cix 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13231434
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 February 2021 (5 years ago)
- Registered office
- 3Cix Ltd, Harben House, Milton Keynes, MK16 9EY
- Nature of business
- Electrical installation (SIC 43210)
Wired telecommunications activities (SIC 61100)
Wireless telecommunications activities (SIC 61200)
Business and domestic software development (SIC 62012) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 30 July 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 Milton Keynes
Other active electrical contractors registered in Milton Keynes.
- A Wesley Air Conditioning Limited2003
- A-Lectrical Solutions Ltd2023
- A.C.N. Electrical Services Limited2016
- A5 Electrical Limited2020
- Acs & Son Electrical Services Ltd2018
- Admk Electrical Ltd2025
- Andy Simmonds Aerials Limited2005
- Ask Electricare Ltd2025
All electrical contractors in Milton Keynes · All trades in Milton Keynes · Electricians across the UK
Frequently asked questions
When are 3Cix Ltd's accounts due?
3Cix Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is 3Cix Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is 3Cix Ltd still trading?
3Cix 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 3Cix Ltd do?
3Cix Ltd is registered under Electrical installation (SIC 43210); Wired telecommunications activities (SIC 61100); Wireless telecommunications activities (SIC 61200); Business and domestic software development (SIC 62012).
How old is 3Cix Ltd?
3Cix Ltd was incorporated on 27 February 2021, 5 years ago.
What is the penalty if 3Cix 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 3Cix 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.