- Companies
- Civil engineering
- Thame
- Carmichael Engineering & Consulting Limited
Carmichael Engineering & Consulting Limited
- Company number
- 06164821
- Incorporated
- 16 Mar 200719 years trading
- Registered office
- 34 Upper High Street, Thame, Oxfordshire, OX9 2DN
- Nature of business
- Construction of other civil engineering projects n.e.c.; Management consultancy activities other than financial management
Carmichael Engineering & Consulting Limited is a 19-year-old private limited company registered in Thame, company number 06164821, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Carmichael Engineering & Consulting LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £568 (+568%) on the year before, to £668.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £6,375 against £5,707 owed within a year: 1.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2015 to 2020.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2020 | £668 | £6,373 | £6,375 | £5,707 | 1 |
| 31 Mar 2019 | £100 | ||||
| 31 Mar 2018 | £100 | ||||
| 31 Mar 2017 | £100 | ||||
| 31 Mar 2016 | £100 | ||||
| 31 Mar 2015 | £100 |
Where Carmichael Engineering & Consulting Limited is registered
The registered office is in Thame (OX9), in the South Oxfordshire local authority area, South East. Show OX9 2DN on a map.
Other trade companies in OX9
- CSG Recovery LtdMechanics and garages
- D Brayne Plumbing and Heating LimitedPlumbers and heating engineers
- Fleet Choice Commercials LtdMachinery repair and installation
- Watson Land and Property LtdProperty developers
- Ces Electrical Installations LimitedElectricians
- Watch Doctors LimitedRepair services
- Collender Walton Landscaping LtdLandscapers and gardeners
- N Greenaway Construction LtdBuilders
What happens if Carmichael Engineering & Consulting 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06164821
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 March 2007 (19 years ago)
- Registered office
- 34 Upper High Street, Thame, Oxfordshire, OX9 2DN
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 15 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Carmichael UK Office Support Limited (until 14 Aug 2019)
Carmichael UK Limited (until 29 Jul 2008)
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 Thame
Other active civil engineering contractors registered in Thame.
All civil engineering contractors in Thame · All trades in Thame · Civil engineering across the UK
Frequently asked questions
When are Carmichael Engineering & Consulting Limited's accounts due?
Carmichael Engineering & Consulting Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Carmichael Engineering & Consulting Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Carmichael Engineering & Consulting Limited still trading?
Carmichael Engineering & Consulting 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 Carmichael Engineering & Consulting Limited do?
Carmichael Engineering & Consulting Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Management consultancy activities other than financial management (SIC 70229).
How old is Carmichael Engineering & Consulting Limited?
Carmichael Engineering & Consulting Limited was incorporated on 16 March 2007, 19 years ago.
What is the penalty if Carmichael Engineering & Consulting 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 Carmichael Engineering & Consulting 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.