- Company number
- NI638105
- Incorporated
- 27 Apr 201610 years trading
- Registered office
- 16 Sandy Lane, Lisburn, BT27 5SE
- Nature of business
- Construction of domestic buildings
Tulnax Ltd is a 10-year-old private limited company registered in Lisburn, company number NI638105, one of 51 building contractors in Lisburn. 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 down £1,853 (-10.3%) on the year before, to £16K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £39K against £47K owed within a year: 0.8 times cover.
- 1 employee on average, down from 2 the year before.
- 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 | £16K | £39K | £47K | 1 | |
| 30 Apr 2024 | £18K | £69K | £75K | 2 | |
| 30 Apr 2023 | £13K | £56K | £53K | 2 | |
| 30 Apr 2022 | £35K | £22K | £38K | 2 | |
| 30 Apr 2021 | £26K | £12K | £42K | 2 | |
| 30 Apr 2020 | £33K | £19K | £59K | 2 | |
| 30 Apr 2019 | £14K | £13K | £37K | ||
| 30 Apr 2018 | £13K | £25K | £50K | ||
| 30 Apr 2017 | -£6,068 | £95 | £6,163 |
Who runs and owns Tulnax Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| J*** K*** | Director | Apr 2019 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| R*** K*** | Director | Apr 2016 | Sep 2017 |
| S*** K*** | Director | Jun 2017 | Apr 2019 |
Person with significant control
Where Tulnax Ltd is registered
The registered office is in Lisburn (BT27), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT27 5SE on a map.
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- MJS Spec and Tech Aero Solutions LtdCleaning companies
- Aquatib LtdSpecialist contractors
- Walsh Residential Group LtdProperty developers
- BM Construction Services (N.I.) LimitedBuilders
- Renoglow Property Services LtdProperty developers
- CMS Parts LimitedMotor traders
- JPW Automotive LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Tulnax Ltd.
- Sanla LimitedProperty developers
What happens if Tulnax 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 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
- NI638105
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 April 2016 (10 years ago)
- Registered office
- 16 Sandy Lane, Lisburn, BT27 5SE
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 26 April 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 Lisburn
Other active building contractors registered in Lisburn.
- VDL Construction Management Limited2010
- Viewpoint Developments Limited2013
- Ardis Building Ltd2016
- Arlo Contracts Ltd2026
- BM Construction Services (N.I.) Limited2026
- Brookhaven Development Limited2014
- Buckland & Bradley Properties Limited2003
- C.P. O'Hare & Company Ltd2005
All building contractors in Lisburn · All trades in Lisburn · Builders across the UK
Frequently asked questions
When are Tulnax Ltd's accounts due?
Tulnax Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Tulnax Ltd'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 Tulnax Ltd still trading?
Tulnax 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 Tulnax Ltd do?
Tulnax Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Tulnax Ltd?
Tulnax Ltd was incorporated on 27 April 2016, 10 years ago.
Who runs Tulnax Ltd?
Tulnax Ltd has 1 active director, the longest-serving appointed in Apr 2019. Their names and service addresses are on the Companies House register.
Who owns Tulnax Ltd?
One person or company has significant control of Tulnax Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Tulnax 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 Tulnax 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.