- Company number
- NI067213
- Incorporated
- 21 Nov 200718 years trading
- Registered office
- 28 Carleton Street, Portadown, Co. Armagh, BT62 3EP
- Nature of business
- Construction of domestic buildings
Cox Contracts Ltd is a 18-year-old private limited company registered in Portadown, company number NI067213, one of 9 building contractors in Portadown. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 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 £50K (+23.6%) on the year before, to £263K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £990K against £764K owed within a year: 1.3 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £263K | £990K | £764K | 2 | |
| 30 Mar 2024 | £213K | £139K | £296K | £89K | 1 |
| 30 Mar 2023 | £232K | £31K | £374K | £139K | 1 |
| 30 Mar 2022 | £249K | £505K | £246K | 1 | |
| 31 Mar 2021 | £205K | £233K | £447K | £248K | 1 |
| 31 Mar 2020 | £109K | £1 | £311K | £211K | 0 |
| 31 Mar 2019 | £1 | £150K | |||
| 31 Mar 2018 | £1 | £150K | |||
| 30 Nov 2016 | £1 | £1 | |||
| 30 Nov 2015 | £1 | £1 |
Where Cox Contracts Ltd is registered
The registered office is in Portadown (BT62), in the Armagh City, Banbridge and Craigavon local authority area, Northern Ireland. Show BT62 3EP on a map.
Other trade companies in BT62
- Ber Plumbing & Heating LtdPlumbers and heating engineers
- JHT Ballyearl LimitedProperty developers
- Eco Groundworx LtdBuilders
- The Commercial Repair Centre LtdMechanics and garages
- P. Stewart Joinery LtdJoiners and carpenters
- Jak Motorcycle Repairs LtdMotor traders
- Autobahn Specialist Cars LtdMotor traders
- RPF Building & Joinery LtdJoiners and carpenters
Also registered at this address
14 other companies use the same registered office as Cox Contracts Ltd.
- 66 Atelier LimitedProperty developers
- Agm Construction and Cost Management LtdProperty developers
- Beechmount (Belfast) LimitedBuilders
- C.C. & D. Properties LtdBuilders
- JC Developments (NI) LimitedBuilders
- Martello (Holywood) LimitedBuilders
- McConville Developments LimitedBuilders
- MHM Developments LtdBuilders
- Newmac Construction LtdBuilders
- Premier Paving Contracts LtdFinishing trades
- Prempave Contracts LtdFinishing trades
- RPF Building & Joinery LtdJoiners and carpenters
- Tamnyvane LtdBuilders
- Watson Autos LimitedMechanics and garages
What happens if Cox Contracts 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Mar 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
- NI067213
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 November 2007 (18 years ago)
- Registered office
- 28 Carleton Street, Portadown, Co. Armagh, BT62 3EP
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 17 November 2025
- Charges (mortgages)
- 5 outstanding of 5 registered
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 Portadown
Other active building contractors registered in Portadown.
- DBL Donnelly Building Ltd2014
- Lisburn Astral Limited2001
- Lynhill Properties Limited2007
- Martello (Holywood) Limited2025
- Mervyn Clayton Developments Limited2002
- Sapphire Contracts Limited2022
- B & P McMahon Bros Ltd2014
- C.C. & D. Properties Ltd2001
All building contractors in Portadown · All trades in Portadown · Builders across the UK
Frequently asked questions
When are Cox Contracts Ltd's accounts due?
Cox Contracts Ltd's next accounts are due at Companies House by 30 December 2026 (in 79 days), covering the period to 30 March 2026.
When is Cox Contracts Ltd's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Cox Contracts Ltd still trading?
Cox Contracts 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 Cox Contracts Ltd do?
Cox Contracts Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Cox Contracts Ltd?
Cox Contracts Ltd was incorporated on 21 November 2007, 18 years ago.
What is the penalty if Cox Contracts 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 Cox Contracts 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.