- Companies
- Civil engineering
- Leeds
- Carthy Contracting Limited
Carthy Contracting Limited
- Company number
- 11985574
- Incorporated
- 8 May 20197 years trading
- Registered office
- Unit 8B Astley Lane Industrial Estate, Astley Lane, Swillington, Leeds, LS26 8XT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Carthy Contracting Limited is a 7-year-old private limited company registered in Leeds, company number 11985574, one of 163 civil engineering contractors in Leeds. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £1,347 (-0.2%) on the year before, to £609K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £483K against £147K owed within a year: 3.3 times cover.
- 11 employees on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £609K | £379K | £483K | £147K | 11 |
| 31 Jan 2025 | £610K | £388K | £570K | £215K | 11 |
| 31 Jan 2024 | £489K | £207K | £465K | £209K | 13 |
| 31 Jan 2023 | £421K | £224K | £552K | £389K | 13 |
| 31 Jan 2022 | £315K | £314K | £624K | £561K | 11 |
| 31 Jan 2021 | £1,000 | ||||
| 31 May 2020 | £1,000 |
Public contracts won
Carthy Contracting Limited has 2 public sector contract awards on record; the ones with their own published value total £24K, from 2021 to 2023. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Leeds City Council2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Leeds City Council | Grove Hill Tarmacking | £20K | 25 May 2023 |
| Leeds City Council | Q009 - 103 Ullswater Crescent - Pathway RETENDER | £3,250 | 9 Jul 2021 |
Where Carthy Contracting Limited is registered
The registered office is in Leeds (LS26), in the Leeds local authority area, Yorkshire and The Humber. Show LS26 8XT on a map.
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What happens if Carthy Contracting 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 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
- 11985574
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2019 (7 years ago)
- Registered office
- Unit 8B Astley Lane Industrial Estate, Astley Lane, Swillington, Leeds, LS26 8XT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 7 January 2026
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 Leeds
Other active civil engineering contractors registered in Leeds.
- CDM Principal Designer Ltd2017
- CML Ltd2025
- Cogill Groundworks Ltd2026
- Core Civils Limited2009
- Coyle Plant and Groundworks Ltd2023
- CT Civil Engineering Limited2016
- D C Quants Limited2003
- D.Ryan Civil Engineering Ltd2007
All civil engineering contractors in Leeds · All trades in Leeds · Civil engineering across the UK
Frequently asked questions
When are Carthy Contracting Limited's accounts due?
Carthy Contracting Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Carthy Contracting Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Carthy Contracting Limited still trading?
Carthy Contracting 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 Carthy Contracting Limited do?
Carthy Contracting Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Carthy Contracting Limited?
Carthy Contracting Limited was incorporated on 8 May 2019, 7 years ago.
Has Carthy Contracting Limited won public sector contracts?
Yes. Carthy Contracting Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £24K), most recently from Leeds City Council.
What is the penalty if Carthy Contracting 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 Carthy Contracting 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.