- Company number
- 11108869
- Incorporated
- 13 Dec 20178 years trading
- Registered office
- 14 Hornbeams, Harlow, CM20 1PG
- Nature of business
- Construction of domestic buildings; Other transportation support activities
Iconstantin Trans Ltd is a 8-year-old private limited company registered in Harlow, company number 11108869, one of 223 building contractors in Harlow. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 30 December 2026 is due at HMRC on 30 December 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 up £282 (+37.2%) on the year before, to £1,040.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £3,864 against £5,983 owed within a year: 0.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £1,040 | £3,864 | £5,983 | 2 | |
| 31 Dec 2024 | £758 | £2,941 | £4,905 | 2 | |
| 31 Dec 2023 | £4,948 | £2,333 | £441 | -3 | |
| 31 Dec 2022 | -£1,745 | £13K | £741 | -3 | |
| 31 Dec 2021 | £2,697 | £1,148 | 3 | ||
| 31 Dec 2020 | £4,419 | £20K | £25K | 3 | |
| 31 Dec 2019 | £1,842 | £1,842 | 3 | ||
| 31 Dec 2018 | £3,530 | £3,530 |
Where Iconstantin Trans Ltd is registered
The registered office is in Harlow (CM20), in the Harlow local authority area, East of England. Show CM20 1PG on a map.
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What happens if Iconstantin Trans 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 | 31 Dec 2027 | £200 |
| 3 months late | 30 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 11108869
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 December 2017 (8 years ago)
- Registered office
- 14 Hornbeams, Harlow, CM20 1PG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other transportation support activities (SIC 52290) - Year end
- 30 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 21 September 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 Harlow
Other active building contractors registered in Harlow.
- Indigo Design and Build London Ltd2023
- Innovation Brickwork Limited2019
- Ion Tudorel Ltd2024
- Ireibus Ltd2021
- Iron House Limited2023
- Istrate Building Ltd2022
- J.M.C Carpentry & Construction Ltd2025
- J2R Safety Ltd2020
All building contractors in Harlow · All trades in Harlow · Builders across the UK
Frequently asked questions
When are Iconstantin Trans Ltd's accounts due?
Iconstantin Trans Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 30 December 2026.
When is Iconstantin Trans Ltd's CT600 due?
The CT600 for the period to 30 December 2026 is due at HMRC by 30 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Iconstantin Trans Ltd still trading?
Iconstantin Trans Ltd is listed as active on the Companies House register (checked 13 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 Iconstantin Trans Ltd do?
Iconstantin Trans Ltd is registered under Construction of domestic buildings (SIC 41202); Other transportation support activities (SIC 52290).
How old is Iconstantin Trans Ltd?
Iconstantin Trans Ltd was incorporated on 13 December 2017, 8 years ago.
What is the penalty if Iconstantin Trans 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 Iconstantin Trans Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.