- Companies
- Specialist contractors
- Runcorn
- Mjo Sons Ltd
Mjo Sons Ltd
- Company number
- 08802861
- Incorporated
- 4 Dec 201312 years trading
- Registered office
- 12 Hawkshead Close, Beechwood, Runcorn, WA7 3JE
- Nature of business
- Other specialised construction activities n.e.c.; Other business support service activities n.e.c.
Mjo Sons Ltd is a 12-year-old private limited company registered in Runcorn, company number 08802861, one of 29 specialist construction companies in Runcorn. 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.
Is this your company?
File the 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 Mjo Sons LtdOr 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.
Finances
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 £22K (+70.3%) on the year before, to £54K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £54K | £58K | £14K | 1 | |
| 31 Dec 2024 | £32K | £47K | £47K | £17K | 1 |
| 31 Dec 2023 | £27K | £44K | £48K | £20K | 1 |
| 31 Dec 2022 | £27K | £41K | £45K | £15K | 1 |
| 31 Dec 2021 | £23K | £34K | £44K | £14K | 1 |
| 31 Dec 2020 | £7,191 | £9,713 | £25K | £10K | 1 |
| 31 Dec 2019 | £5,141 | £2,662 | £2,662 | £8,370 | 1 |
| 31 Dec 2018 | £2,292 | £7,507 | £9,259 | £7,588 | 1 |
| 31 Dec 2017 | £2,711 | £8,353 | £10K | £8,440 | 1 |
| 31 Dec 2016 | £5,310 | £13K | £15K | £9,517 |
Where Mjo Sons Ltd is registered
The registered office is in Runcorn (WA7), in the Halton local authority area, North West. Show WA7 3JE on a map.
Other trade companies in WA7
- JH Roofing & Son LtdRoofers
- Good Fellers Tree Care LtdLandscapers and gardeners
- CJD Contracting LtdProperty developers
- Druid Performance LimitedMotor traders
- Kayos Properties LimitedProperty developers
- E-Ron Bikes LtdMotor traders
- Electrician A LtdElectricians
- Bridgebrook Property Management LtdProperty developers
What happens if Mjo Sons 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
- 08802861
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 December 2013 (12 years ago)
- Registered office
- 12 Hawkshead Close, Beechwood, Runcorn, WA7 3JE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Other business support service activities n.e.c. (SIC 82990) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 29 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Runcorn
Other active specialist construction companies registered in Runcorn.
- Mobathrooms Ltd2026
- Rainhill Developments Limited2023
- RB Site Services Ltd2026
- Renovations of Cheshire NW Ltd2024
- Robinson's Steel Erectors Ltd2020
- Westons Developments Ltd2022
- WHB Mechanical Ltd2014
- Wilson Roofing and Cladding Ltd2025
All specialist construction companies in Runcorn · All trades in Runcorn · Specialist contractors across the UK
Frequently asked questions
When are Mjo Sons Ltd's accounts due?
Mjo Sons Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Mjo Sons 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 Mjo Sons Ltd still trading?
Mjo Sons 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 Mjo Sons Ltd do?
Mjo Sons Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Other business support service activities n.e.c. (SIC 82990).
How old is Mjo Sons Ltd?
Mjo Sons Ltd was incorporated on 4 December 2013, 12 years ago.
What is the penalty if Mjo Sons 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 Mjo Sons 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.