- Companies
- Civil engineering
- Swansea
- Tanners Welding Services Limited
Tanners Welding Services Limited
- Company number
- 17370004
- Incorporated
- 30 Jul 2026
- Registered office
- 101 Colwyn Avenue, Winch Wen, Swansea, SA1 7EJ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Tanners Welding Services Limited is a newly incorporated private limited company registered in Swansea, company number 17370004, one of 71 civil engineering contractors in Swansea. Its next accounts are due at Companies House on 30 April 2028, and its first CT600 is due at HMRC on 29 July 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 Tanners Welding Services Limited is registered
The registered office is in Swansea (SA1), in the Swansea local authority area, Wales. Show SA1 7EJ on a map.
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What happens if Tanners Welding Services 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 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2028 to 31 May 2028 | £150 |
| 1 to 3 months late | 1 Jun 2028 to 31 Jul 2028 | £375 |
| 3 to 6 months late | 1 Aug 2028 to 31 Oct 2028 | £750 |
| More than 6 months late | From 1 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17370004
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 July 2026
- Registered office
- 101 Colwyn Avenue, Winch Wen, Swansea, SA1 7EJ
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 July (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 Swansea
Other active civil engineering contractors registered in Swansea.
- Total Technology Design Partnership Limited2000
- Trident Infrastructure Projects Ltd2026
- WCJ Utilities Limited2019
- Western Cape Construction & Utilities Group Ltd2020
- A J Platinum Groundworks Ltd2025
- Ad Technique Ltd2021
- Agc Engineering Services Ltd2025
- Ajsl Engineering Limited2017
All civil engineering contractors in Swansea · All trades in Swansea · Civil engineering across the UK
Frequently asked questions
When are Tanners Welding Services Limited's accounts due?
Tanners Welding Services Limited's next accounts are due at Companies House by 30 April 2028 (in 565 days), covering the period to 31 July 2027.
When is Tanners Welding Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 July 2027, due by 29 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Tanners Welding Services Limited still trading?
Tanners Welding Services 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 Tanners Welding Services Limited do?
Tanners Welding Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Tanners Welding Services Limited?
Tanners Welding Services Limited was incorporated on 30 July 2026, less than a year ago.
What is the penalty if Tanners Welding Services 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 Tanners Welding Services 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.