- Companies
- Civil engineering
- Bishop's Stortford
- Tar-Mar Ltd
Tar-Mar Ltd
- Company number
- 13029366
- Incorporated
- 18 Nov 20205 years trading
- Registered office
- Home Farm Gaunts End, Elsenham, Bishop's Stortford, CM22 6DR
- Nature of business
- Construction of roads and motorways
Tar-Mar Ltd is a 5-year-old private limited company registered in Bishop's Stortford, company number 13029366, one of 16 civil engineering contractors in Bishop's Stortford. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £14K (+44.2%) on the year before, to £46K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £55K against £9,332 owed within a year: 5.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £46K | £55K | £9,332 | 1 | |
| 31 Oct 2024 | £32K | £52K | £20K | 1 | |
| 31 Oct 2023 | £28K | £38K | £10K | 1 | |
| 31 Oct 2022 | £33K | £44K | £12K | 1 | |
| 31 Oct 2021 | £31K | £44K | £13K | 1 |
Where Tar-Mar Ltd is registered
The registered office is in Bishop's Stortford (CM22), in the Uttlesford local authority area, East of England. Show CM22 6DR on a map.
Other trade companies in CM22
- K Lewis Construction LimitedInstallers
- The Crystal Clear Cleaning Services LimitedCleaning companies
- Neat and Tidy LtdCleaning companies
- DNB Property Compliance LimitedInstallers
- Blackwater Motor Group LimitedMechanics and garages
- Jid Aviation LtdMachinery repair and installation
- HBDC LtdJoiners and carpenters
- Watson Trading LimitedMotor traders
Also registered at this address
1 other company uses the same registered office as Tar-Mar Ltd.
- Flawless Wraps LimitedMechanics and garages
What happens if Tar-Mar 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 13029366
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 November 2020 (5 years ago)
- Registered office
- Home Farm Gaunts End, Elsenham, Bishop's Stortford, CM22 6DR
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 6 November 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Bishop's Stortford
Other active civil engineering contractors registered in Bishop's Stortford.
- A.C.T. Services & Maintenance Limited1998
- Brady Contract Services Limited2012
- Chelmsford Building Services Limited2003
- Construction and Foundations Ltd2020
- E&S Utilities Training Limited2024
- Exon Utilities Limited2025
- Forwardspread Limited1986
- George Hogan & Sons Ltd2020
All civil engineering contractors in Bishop's Stortford · All trades in Bishop's Stortford · Civil engineering across the UK
Frequently asked questions
When are Tar-Mar Ltd's accounts due?
Tar-Mar Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Tar-Mar Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Tar-Mar Ltd still trading?
Tar-Mar 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 Tar-Mar Ltd do?
Tar-Mar Ltd is registered under Construction of roads and motorways (SIC 42110).
How old is Tar-Mar Ltd?
Tar-Mar Ltd was incorporated on 18 November 2020, 5 years ago.
What is the penalty if Tar-Mar 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 Tar-Mar 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.