- Companies
- Finishing trades
- Castlederg
- Tirconaill Contracts NI Limited
Tirconaill Contracts NI Limited
- Company number
- NI675068
- Incorporated
- 18 Dec 20205 years trading
- Registered office
- 13 Ashburn Park, Castlederg, Co. Tyrone, BT81 7BA
- Nature of business
- Other building completion and finishing; Roofing activities
Tirconaill Contracts NI Limited is a 5-year-old private limited company registered in Castlederg, company number NI675068, one of the UK's building finishing companies. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £480 (+480%) on the year before, to £580.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | £580 | £0 | £0 | 0 | |
| 31 Aug 2024 | £100 | 0 | |||
| 31 Aug 2023 | £100 | £100 | 0 | ||
| 31 Aug 2022 | £100 | £100 | £0 | 0 | |
| 31 Dec 2021 | £100 | £100 | £0 | 0 |
Where Tirconaill Contracts NI Limited is registered
The registered office is in Castlederg (BT81), in the Derry City and Strabane local authority area, Northern Ireland. Show BT81 7BA on a map.
Other trade companies in BT81
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- Rda Lowry Plant Hire & Civil Engineering LtdFinishing trades
- C O'Kane and Son Plant Hire LtdSpecialist contractors
- Cloon Solutions LtdMachinery repair and installation
- R Crawford Construction LtdBuilders
- Corrs Construction LtdSpecialist contractors
- S & M Civils LtdBuilders
- DMD Steel Erecting LtdSpecialist contractors
What happens if Tirconaill Contracts NI 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- NI675068
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 December 2020 (5 years ago)
- Registered office
- 13 Ashburn Park, Castlederg, Co. Tyrone, BT81 7BA
- Nature of business
- Other building completion and finishing (SIC 43390)
Roofing activities (SIC 43910) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 9 December 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Castlederg
Other active building finishing companies registered in Castlederg.
All building finishing companies in Castlederg · All trades in Castlederg · Finishing trades across the UK
Frequently asked questions
When are Tirconaill Contracts NI Limited's accounts due?
Tirconaill Contracts NI Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Tirconaill Contracts NI Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Tirconaill Contracts NI Limited still trading?
Tirconaill Contracts NI 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 Tirconaill Contracts NI Limited do?
Tirconaill Contracts NI Limited is registered under Other building completion and finishing (SIC 43390); Roofing activities (SIC 43910).
How old is Tirconaill Contracts NI Limited?
Tirconaill Contracts NI Limited was incorporated on 18 December 2020, 5 years ago.
What is the penalty if Tirconaill Contracts NI 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 Tirconaill Contracts NI 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.