- Companies
- Builders
- Berkhamsted
- MJ Thornton Ltd
MJ Thornton Ltd
- Company number
- 11836573
- Incorporated
- 20 Feb 20197 years trading
- Registered office
- Roseheath Wood Cottage, Bullbeggars Lane, Berkhamsted, HP4 2RS
- Nature of business
- Construction of domestic buildings
MJ Thornton Ltd is a 7-year-old private limited company registered in Berkhamsted, company number 11836573, one of 38 building contractors in Berkhamsted. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 down £8,490 (-9.7%) on the year before, to £79K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £61K against £5,427 owed within a year: more than 10 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £79K | £47K | £61K | £5,427 | 2 |
| 31 Mar 2024 | £88K | £60K | £69K | £12K | 2 |
| 5 Apr 2023 | £29K | £64K | £35K | 1 | |
| 5 Apr 2022 | -£2,209 | £32K | £35K | 1 | |
| 5 Apr 2021 | -£5,763 | £11K | £18K | 0 | |
| 5 Apr 2020 | £17K | £26K | £3,196 | 0 |
Where MJ Thornton Ltd is registered
The registered office is in Berkhamsted (HP4), in the Dacorum local authority area, East of England. Show HP4 2RS on a map.
Other trade companies in HP4
- Berkofix LtdBuilders
- Mangan Group LtdCivil engineering
- MCB Farms LtdBuilders
- MJH Design and Build LtdBuilders
- Phillips Doors & Windows LimitedJoiners and carpenters
- Isio Estates LtdFacilities management
- Pme Land LimitedProperty developers
- Platinum Garden Services LtdLandscapers and gardeners
What happens if MJ Thornton 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11836573
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 February 2019 (7 years ago)
- Registered office
- Roseheath Wood Cottage, Bullbeggars Lane, Berkhamsted, HP4 2RS
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 19 February 2026
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 Berkhamsted
Other active building contractors registered in Berkhamsted.
- MJH Design and Build Ltd2026
- Moyvale Property Care Ltd2003
- North View Homes Ltd2022
- O'Durand Property Development Limited2010
- Paramount Floors Ltd2019
- Platinum Building Services Ltd2025
- Roc UK Properties Ltd2017
- Shooters Way Securities 2 Limited2025
All building contractors in Berkhamsted · All trades in Berkhamsted · Builders across the UK
Frequently asked questions
When are MJ Thornton Ltd's accounts due?
MJ Thornton Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is MJ Thornton Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is MJ Thornton Ltd still trading?
MJ Thornton 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 MJ Thornton Ltd do?
MJ Thornton Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is MJ Thornton Ltd?
MJ Thornton Ltd was incorporated on 20 February 2019, 7 years ago.
What is the penalty if MJ Thornton 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 MJ Thornton 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.