- Companies
- Mechanics and garages
- Southampton
- Myk Marshall Auto Diagnostic Limited
Myk Marshall Auto Diagnostic Limited
- Company number
- 13673280
- Incorporated
- 12 Oct 20215 years trading
- Registered office
- 2 Baltic Road, West End, Southampton, SO30 3DZ
- Nature of business
- Maintenance and repair of motor vehicles
Myk Marshall Auto Diagnostic Limited is a 5-year-old private limited company registered in Southampton, company number 13673280, one of 282 vehicle repair garages in Southampton. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £1,353 (+250.6%) on the year before, to £1,893.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £5,029 against £3,136 owed within a year: 1.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Oct 2025 | £1,893 | £5,029 | £5,029 | £3,136 | 0 |
| 31 Oct 2024 | £540 | £0 | £3,010 | £2,470 | 0 |
| 31 Oct 2023 | £143 | £1,178 | £6,991 | £5,038 | 1 |
| 31 Oct 2022 | £291 | £822 | £4,234 | £2,378 | 1 |
Where Myk Marshall Auto Diagnostic Limited is registered
The registered office is in Southampton (SO30), in the Eastleigh local authority area, South East. Show SO30 3DZ on a map.
Other trade companies in SO30
- Masters Vehicle Solutions LtdMechanics and garages
- JG Projects 02 LtdFinishing trades
- GW Installations LimitedGlaziers
- Winterstone Systems LtdElectricians
- Stay Sure Drives and Patios LtdLandscapers and gardeners
- Epc Upgrade Group LtdElectricians
- Ross Maynard Projects LtdProperty developers
- Picca Compliance LimitedElectricians
What happens if Myk Marshall Auto Diagnostic 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 13673280
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 October 2021 (5 years ago)
- Registered office
- 2 Baltic Road, West End, Southampton, SO30 3DZ
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 11 October 2025
Filing notes for vehicle repair garages
Garages hold parts stock and often own diagnostic equipment and ramps, which qualify for capital allowances.
Similar companies in Southampton
Other active vehicle repair garages registered in Southampton.
- Nandrews Limited2001
- Narcis Motors Ltd2025
- Nesta Auto Mechanics Ltd2025
- New Farm Motor Services Limited2006
- New Forest Prime Ltd2022
- New Forest Services Ltd2022
- Nextgen Vehicle Locksmith Limited2025
- North Baddesley Service Centre Limited2010
All vehicle repair garages in Southampton · All trades in Southampton · Mechanics and garages across the UK
Frequently asked questions
When are Myk Marshall Auto Diagnostic Limited's accounts due?
Myk Marshall Auto Diagnostic Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Myk Marshall Auto Diagnostic Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Myk Marshall Auto Diagnostic Limited still trading?
Myk Marshall Auto Diagnostic 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 Myk Marshall Auto Diagnostic Limited do?
Myk Marshall Auto Diagnostic Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Myk Marshall Auto Diagnostic Limited?
Myk Marshall Auto Diagnostic Limited was incorporated on 12 October 2021, 5 years ago.
What is the penalty if Myk Marshall Auto Diagnostic 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 Myk Marshall Auto Diagnostic 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.