- Companies
- Specialist contractors
- Tarmark Limited
Tarmark Limited
- Company number
- 10126087
- Incorporated
- 15 Apr 201610 years trading
- Registered office
- Unit D, The Old Council Yard, Haltwhistle, Northumberland, NE49 0ND
- Nature of business
- Other specialised construction activities n.e.c.
Tarmark Limited is a 10-year-old private limited company registered in Haltwhistle, company number 10126087, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £34K (+29.9%) on the year before, to £146K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £209K against £77K owed within a year: 2.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £146K | £209K | £77K | 1 | |
| 30 Apr 2024 | £112K | £134K | £31K | 1 | |
| 30 Apr 2023 | £139K | £220K | £88K | 1 | |
| 30 Apr 2022 | £152K | £202K | £56K | 1 | |
| 30 Apr 2021 | £143K | £168K | £33K | 1 | |
| 30 Apr 2020 | £174K | £188K | £26K | 1 | |
| 30 Apr 2019 | £153K | £170K | £30K | ||
| 30 Apr 2018 | £105K | £114K | £27K | ||
| 30 Apr 2017 | £52K | £84K | £42K |
Where Tarmark Limited is registered
The registered office is in Haltwhistle (NE49), in the Northumberland local authority area, North East. Show NE49 0ND on a map.
Other trade companies in NE49
- Dobrovolskyi Woodworks LtdJoiners and carpenters
- SWS Marine LtdMachinery repair and installation
- Bozzcom LimitedMachinery repair and installation
- Delta-T Heating & Plumbing LtdPlumbers and heating engineers
- Pro-Core Scaffolding UK LtdScaffolders
- Wall Developments LtdProperty developers
- RGN Walling LtdSpecialist contractors
- Banks Stonemasonry LimitedSpecialist contractors
What happens if Tarmark Limited 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 10126087
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2016 (10 years ago)
- Registered office
- Unit D, The Old Council Yard, Haltwhistle, Northumberland, NE49 0ND
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 14 April 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
Other active specialist construction companies.
Frequently asked questions
When are Tarmark Limited's accounts due?
Tarmark Limited's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Tarmark Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Tarmark Limited still trading?
Tarmark Limited 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 Tarmark Limited do?
Tarmark Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Tarmark Limited?
Tarmark Limited was incorporated on 15 April 2016, 10 years ago.
What is the penalty if Tarmark Limited 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 Tarmark Limited 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.