- Companies
- Specialist contractors
- Swansea
- J.F. Cahill Limited
J.F. Cahill Limited
- Company number
- 05775535
- Incorporated
- 10 Apr 200620 years trading
- Registered office
- 64 Stepney Road, Cockett, Swansea, SA2 0FT
- Nature of business
- Other specialised construction activities n.e.c.
J.F. Cahill Limited is a 20-year-old private limited company registered in Swansea, company number 05775535, one of 99 specialist construction companies in Swansea. Its next accounts are due at Companies House on 30 May 2027, and the CT600 for the period to 30 August 2026 is due at HMRC on 30 August 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 £63K (+229.8%) on the year before, to £90K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £284K against £173K owed within a year: 1.6 times cover.
- 7 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Aug 2025 | £90K | £284K | £173K | 7 | |
| 30 Aug 2024 | £27K | £230K | £158K | 7 | |
| 31 Aug 2023 | £14K | £208K | £182K | 7 | |
| 31 Aug 2022 | £19K | £155K | £118K | 7 | |
| 31 Aug 2021 | £36K | £169K | £99K | 8 | |
| 31 Aug 2020 | £36K | £108K | £84K | 8 | |
| 31 Aug 2019 | £51K | £115K | £82K | 5 | |
| 31 Aug 2018 | £43K | £94K | £69K | ||
| 31 Aug 2017 | £41K | £134K | £119K | ||
| 31 Aug 2016 | £29K | £33K | £89K | £79K |
Where J.F. Cahill Limited is registered
The registered office is in Swansea (SA2), in the Swansea local authority area, Wales. Show SA2 0FT on a map.
Other trade companies in SA2
- Living Landscapes Commercial LtdLandscapers and gardeners
- DC Plumbing & Construction LtdBuilders
- Ginger Property Services LimitedProperty developers
- Smart Space Living LtdJoiners and carpenters
- Paul Vernon HV Sap LimitedCivil engineering
- L.H Hiab & Recovery LimitedMechanics and garages
- Lewis Tarmac LtdCivil engineering
- Tolzini Cleaning Services LtdCleaning companies
What happens if J.F. Cahill 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 May 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 30 Aug 2027 | £375 |
| 3 to 6 months late | 31 Aug 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Aug 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Aug 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
- 05775535
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 April 2006 (20 years ago)
- Registered office
- 64 Stepney Road, Cockett, Swansea, SA2 0FT
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 August 2025
- Last confirmation statement
- 6 August 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 in Swansea
Other active specialist construction companies registered in Swansea.
- John Glen (Installation Services) Limited1998
- Johnson, Hall & Company Limited1984
- KPG Brickwork Ltd2021
- Lee Design Limited2003
- LMS (Wales) Limited2014
- Lynch Scaffolding System Limited2017
- M.C.L. Bricklaying Ltd2003
- Martin Taffetsauffer Building & Civil Engineering Contractors Ltd2006
All specialist construction companies in Swansea · All trades in Swansea · Specialist contractors across the UK
Frequently asked questions
When are J.F. Cahill Limited's accounts due?
J.F. Cahill Limited's next accounts are due at Companies House by 30 May 2027 (in 228 days), covering the period to 30 August 2026.
When is J.F. Cahill Limited's CT600 due?
The CT600 for the period to 30 August 2026 is due at HMRC by 30 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 May 2027.
Is J.F. Cahill Limited still trading?
J.F. Cahill 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 J.F. Cahill Limited do?
J.F. Cahill Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is J.F. Cahill Limited?
J.F. Cahill Limited was incorporated on 10 April 2006, 20 years ago.
What is the penalty if J.F. Cahill 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 J.F. Cahill 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.