- Companies
- Electricians
- Portsmouth
- Underground Signs & Graphics Ltd
Underground Signs & Graphics Ltd
- Company number
- 16733454
- Incorporated
- 22 Sep 20251 year trading
- Registered office
- 10 Cornwall Road, Portsmouth, PO1 5BW
- Nature of business
- Electrical installation; Other specialised construction activities n.e.c.; specialised design activities
Underground Signs & Graphics Ltd is a 1-year-old private limited company registered in Portsmouth, company number 16733454, one of 148 electrical contractors in Portsmouth. Its next accounts are due at Companies House on 22 June 2027, and its first CT600 is due at HMRC on 21 September 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Underground Signs & Graphics Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** K*** | Director | Sep 2025 |
Person with significant control
Where Underground Signs & Graphics Ltd is registered
The registered office is in Portsmouth (PO1), in the Portsmouth local authority area, South East. Show PO1 5BW on a map.
Other trade companies in PO1
- Design 1805 Southern LtdJoiners and carpenters
- Portsmouth Roofing LtdRoofers
- Peterborough Mews (London) LimitedProperty developers
- Doxa Facility Group LtdCleaning companies
- Crestpoint Cleaning & Facilities LtdCleaning companies
- Dark Rose Cleaning Co LtdCleaning companies
- PDS Garage Services LtdMechanics and garages
- HDF Roofing LtdRoofers
What happens if Underground Signs & Graphics 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 22 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 23 Jun 2027 to 22 Jul 2027 | £150 |
| 1 to 3 months late | 23 Jul 2027 to 22 Sep 2027 | £375 |
| 3 to 6 months late | 23 Sep 2027 to 22 Dec 2027 | £750 |
| More than 6 months late | From 23 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16733454
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 September 2025 (1 year ago)
- Registered office
- 10 Cornwall Road, Portsmouth, PO1 5BW
- Nature of business
- Electrical installation (SIC 43210)
Other specialised construction activities n.e.c. (SIC 43999)
specialised design activities (SIC 74100) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Portsmouth
Other active electrical contractors registered in Portsmouth.
- Urban Installers Ltd2015
- Vanguard Construction Group Ltd2026
- Volt Network Ltd2026
- Volt Tech Services Ltd2024
- Voltkens Ltd2025
- Vuro Ltd2006
- W2 Electrical Limited2026
- Walker Electrical Services (UK) Limited1993
All electrical contractors in Portsmouth · All trades in Portsmouth · Electricians across the UK
Frequently asked questions
When are Underground Signs & Graphics Ltd's accounts due?
Underground Signs & Graphics Ltd's next accounts are due at Companies House by 22 June 2027 (in 252 days), covering the period to 30 September 2026.
When is Underground Signs & Graphics Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 21 September 2026, due by 21 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Underground Signs & Graphics Ltd still trading?
Underground Signs & Graphics Ltd is listed as active on the Companies House register (checked 13 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 Underground Signs & Graphics Ltd do?
Underground Signs & Graphics Ltd is registered under Electrical installation (SIC 43210); Other specialised construction activities n.e.c. (SIC 43999); specialised design activities (SIC 74100).
How old is Underground Signs & Graphics Ltd?
Underground Signs & Graphics Ltd was incorporated on 22 September 2025, 1 year ago.
Who runs Underground Signs & Graphics Ltd?
Underground Signs & Graphics Ltd has 1 active director, the longest-serving appointed in Sep 2025. Their names and service addresses are on the Companies House register.
Who owns Underground Signs & Graphics Ltd?
One person or company has significant control of Underground Signs & Graphics Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Underground Signs & Graphics 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 Underground Signs & Graphics Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.