- Companies
- Specialist contractors
- Smart Security UK Limited
Smart Security UK Limited
- Company number
- 05835486
- Incorporated
- 2 Jun 200620 years trading
- Registered office
- Unit 2 Queens Mill, Mill Street, East, Dewsbury, West Yorkshire, WF12 9AQ
- Nature of business
- Other specialised construction activities n.e.c.
Smart Security UK Limited is a 20-year-old private limited company registered in West Yorkshire, company number 05835486, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £9,879 (-22.1%) on the year before, to £35K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £117K against £74K owed within a year: 1.6 times cover.
- 7 employees on average, up from 6 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £35K | £16K | £117K | £74K | 7 |
| 31 Jul 2024 | £45K | £63K | £141K | £77K | 6 |
| 31 Jul 2023 | £43K | £11K | £159K | £93K | 6 |
| 31 Jul 2022 | £88K | £96K | £259K | £112K | 6 |
| 31 Jul 2021 | £262 | £8,931 | £144K | £88K | 6 |
| 31 Jul 2020 | £111 | £62K | £162K | £137K | 7 |
| 31 Jul 2019 | £35K | £61K | £209K | £207K | 9 |
| 31 Jul 2018 | £72K | £41K | £282K | £253K | 11 |
| 31 Jul 2017 | £241K | £93K | £403K | £215K | 10 |
| 31 Jul 2016 | £391K | £138K | £754K | £416K |
Public contracts won
Smart Security UK Limited has one public sector contract award on record (2020). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Bradford Metropolitan District Council | Construction Contractors Framework (4) | Ceiling, not shown | 27 May 2020 |
Where Smart Security UK Limited is registered
The registered office is in West Yorkshire (WF12), in the Kirklees local authority area, Yorkshire and The Humber. Show WF12 9AQ on a map.
Other trade companies in WF12
- Clearview Co Yorkshire LtdCleaning companies
- M&H Construction (Dewsbury) LtdBuilders
- Echelon Conglomerate LtdFinishing trades
- WF Electrical Contractors LtdElectricians
- Autostock Direct LtdMotor traders
- Domistic Gas Master LtdPlumbers and heating engineers
- Norvex Motors LtdMotor traders
- Sweendog Pipework Solutions LimitedMachinery repair and installation
What happens if Smart Security UK 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 05835486
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2006 (20 years ago)
- Registered office
- Unit 2 Queens Mill, Mill Street, East, Dewsbury, West Yorkshire, WF12 9AQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 2 June 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 Smart Security UK Limited's accounts due?
Smart Security UK Limited's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Smart Security UK Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Smart Security UK Limited still trading?
Smart Security UK 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 Smart Security UK Limited do?
Smart Security UK Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Smart Security UK Limited?
Smart Security UK Limited was incorporated on 2 June 2006, 20 years ago.
Has Smart Security UK Limited won public sector contracts?
Yes. Smart Security UK Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Bradford Metropolitan District Council.
What is the penalty if Smart Security UK 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 Smart Security UK 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.