- Companies
- Civil engineering
- Swindon
- Unity Signalling Ltd
Unity Signalling Ltd
- Company number
- 16979418
- Incorporated
- 21 Jan 2026
- Registered office
- 45 Sanders Close, Swindon, SN2 7AA
- Nature of business
- Construction of railways and underground railways
Unity Signalling Ltd is a newly incorporated private limited company registered in Swindon, company number 16979418, one of 67 civil engineering contractors in Swindon. Its next accounts are due at Companies House on 21 October 2027, and its first CT600 is due at HMRC on 20 January 2028.
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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Where Unity Signalling Ltd is registered
The registered office is in Swindon (SN2), in the Swindon local authority area, South West. Show SN2 7AA on a map.
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What happens if Unity Signalling 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 21 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Oct 2027 to 21 Nov 2027 | £150 |
| 1 to 3 months late | 22 Nov 2027 to 21 Jan 2028 | £375 |
| 3 to 6 months late | 22 Jan 2028 to 21 Apr 2028 | £750 |
| More than 6 months late | From 22 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16979418
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 January 2026
- Registered office
- 45 Sanders Close, Swindon, SN2 7AA
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Swindon
Other active civil engineering contractors registered in Swindon.
- Woodleaze Groundworks and Civil Engineering Ltd2019
- Woody's Water Utilities Ltd2026
- Wroughton Building Contractors Limited2001
- Yeokom Engineering Ltd2017
- Andrew Group Construct Ltd2024
- Art Traffic Management Limited2017
- Asphalt Recycling UK Limited2007
- Bancumm Surfacing Limited2004
All civil engineering contractors in Swindon · All trades in Swindon · Civil engineering across the UK
Frequently asked questions
When are Unity Signalling Ltd's accounts due?
Unity Signalling Ltd's next accounts are due at Companies House by 21 October 2027 (in 373 days), covering the period to 31 January 2027.
When is Unity Signalling 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 20 January 2027, due by 20 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Unity Signalling Ltd still trading?
Unity Signalling 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 Unity Signalling Ltd do?
Unity Signalling Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Unity Signalling Ltd?
Unity Signalling Ltd was incorporated on 21 January 2026, less than a year ago.
What is the penalty if Unity Signalling 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 Unity Signalling 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.