- Companies
- Specialist contractors
- Edinburgh
- Simpson Mechanical Ltd
Simpson Mechanical Ltd
- Company number
- SC732016
- Incorporated
- 10 May 20224 years trading
- Registered office
- 63 North Meggetland, Edinburgh, EH14 1XQ
- Nature of business
- Other specialised construction activities n.e.c.
Simpson Mechanical Ltd is a 4-year-old private limited company registered in Edinburgh, company number SC732016, one of 159 specialist construction companies in Edinburgh. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Simpson Mechanical Ltd is registered
The registered office is in Edinburgh (EH14), in the City of Edinburgh local authority area, Scotland. Show EH14 1XQ on a map.
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What happens if Simpson Mechanical 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- SC732016
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2022 (4 years ago)
- Registered office
- 63 North Meggetland, Edinburgh, EH14 1XQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 9 May 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 Edinburgh
Other active specialist construction companies registered in Edinburgh.
- Speakman Gas Services Limited2025
- Steve Matt Ltd2026
- Stewart Paton Associates Ltd.2002
- Stone Restor Limited1993
- Strongerhome Ltd2026
- Studio M Greenwell Ltd2025
- Takkataan Trades Ltd2023
- Techni-Dri Limited1998
All specialist construction companies in Edinburgh · All trades in Edinburgh · Specialist contractors across the UK
Frequently asked questions
When are Simpson Mechanical Ltd's accounts due?
Simpson Mechanical Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Simpson Mechanical Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Simpson Mechanical Ltd still trading?
Simpson Mechanical 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 Simpson Mechanical Ltd do?
Simpson Mechanical Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Simpson Mechanical Ltd?
Simpson Mechanical Ltd was incorporated on 10 May 2022, 4 years ago.
What is the penalty if Simpson Mechanical 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 Simpson Mechanical 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.