- Companies
- Electricians
- Glasgow
- Simon Wilson Testing Limited
Simon Wilson Testing Limited
- Company number
- SC717136
- Incorporated
- 8 Dec 20214 years trading
- Registered office
- 4 Kelvin Way, Kirkintilloch, Glasgow, Lanarkshire, G66 1BX
- Nature of business
- Electrical installation
Simon Wilson Testing Limited is a 4-year-old private limited company registered in Glasgow, company number SC717136, one of 623 electrical contractors in Glasgow. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £49K (+27.4%) on the year before, to £229K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £259K against £43K owed within a year: 6.0 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £229K | £259K | £43K | 3 | |
| 31 Dec 2024 | £180K | £216K | £40K | 3 | |
| 31 Dec 2023 | £134K | £174K | £54K | 2 | |
| 31 Dec 2022 | £41K | £59K | £30K | 1 |
Where Simon Wilson Testing Limited is registered
The registered office is in Glasgow (G66), in the East Dunbartonshire local authority area, Scotland. Show G66 1BX on a map.
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What happens if Simon Wilson Testing 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- SC717136
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 December 2021 (4 years ago)
- Registered office
- 4 Kelvin Way, Kirkintilloch, Glasgow, Lanarkshire, G66 1BX
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 7 December 2025
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Glasgow
Other active electrical contractors registered in Glasgow.
- Sinclair Industrial Ltd2024
- Sirmart Handyman Services Limited2024
- SJH Rope Spark Ltd2025
- SK Invicta Electrical Ltd2022
- SK1 Electrical Ltd2026
- SKM Electrical Services Ltd2026
- SLS Electrics Ltd2023
- SM Electrical Services (Scotland) Ltd2016
All electrical contractors in Glasgow · All trades in Glasgow · Electricians across the UK
Frequently asked questions
When are Simon Wilson Testing Limited's accounts due?
Simon Wilson Testing Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Simon Wilson Testing Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Simon Wilson Testing Limited still trading?
Simon Wilson Testing 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 Simon Wilson Testing Limited do?
Simon Wilson Testing Limited is registered under Electrical installation (SIC 43210).
How old is Simon Wilson Testing Limited?
Simon Wilson Testing Limited was incorporated on 8 December 2021, 4 years ago.
What is the penalty if Simon Wilson Testing 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 Simon Wilson Testing 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.