- Companies
- Mechanics and garages
- Wirral
- Core Diagnostics Limited
Core Diagnostics Limited
- Company number
- 12393289
- Incorporated
- 9 Jan 20206 years trading
- Registered office
- Eastham Hall Eastham Village Road, Eastham, Wirral, CH62 0AF
- Nature of business
- Maintenance and repair of motor vehicles; Other transportation support activities
Core Diagnostics Limited is a 6-year-old private limited company registered in Wirral, company number 12393289, one of 52 vehicle repair garages in Wirral. Its next accounts are due at Companies House on 30 October 2026, and the CT600 for the period to 30 January 2026 is due at HMRC on 30 January 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 £375K (+74.3%) on the year before, to £881K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £732K against £463K owed within a year: 1.6 times cover.
- 10 employees on average, up from 9 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jan 2025 | £881K | £294K | £732K | £463K | 10 |
| 30 Jan 2024 | £505K | £305K | £471K | £344K | 9 |
| 30 Jan 2023 | £610K | £552K | £687K | £213K | 8 |
| 30 Jan 2022 | £229K | £281K | £356K | £182K | 5 |
| 30 Jan 2021 | £7,406 | £54K | £88K | £85K | 2 |
Where Core Diagnostics Limited is registered
The registered office is in Wirral (CH62), in the Wirral local authority area, North West. Show CH62 0AF on a map.
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- Ies Integrated Electrical Services LtdElectricians
- Terminus Developments LtdProperty developers
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- Mike Morris Home and Property Services LtdBuilders
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- The Roman Commercial Group LimitedBuilders
Also registered at this address
1 other company uses the same registered office as Core Diagnostics Limited.
- Transform Smart Repairs LimitedMechanics and garages
What happens if Core Diagnostics 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Oct 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 30 Jan 2027 | £375 |
| 3 to 6 months late | 31 Jan 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Jan 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 30 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jan 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
- 12393289
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 January 2020 (6 years ago)
- Registered office
- Eastham Hall Eastham Village Road, Eastham, Wirral, CH62 0AF
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
Other transportation support activities (SIC 52290) - Year end
- 30 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 January 2025
- Last confirmation statement
- 26 August 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
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 Wirral
Other active vehicle repair garages registered in Wirral.
- Dee Motor Company Services Limited2021
- DKM Coachworks Ltd2025
- DP Sloan Ltd2025
- Dragonvi Ltd2024
- Ectv Limited2008
- Eye Cab Limited2013
- Hoylake Autos Ltd2019
- Hoylake Crash Ltd2016
All vehicle repair garages in Wirral · All trades in Wirral · Mechanics and garages across the UK
Frequently asked questions
When are Core Diagnostics Limited's accounts due?
Core Diagnostics Limited's next accounts are due at Companies House by 30 October 2026 (in 18 days), covering the period to 30 January 2026.
When is Core Diagnostics Limited's CT600 due?
The CT600 for the period to 30 January 2026 is due at HMRC by 30 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 October 2026.
Is Core Diagnostics Limited still trading?
Core Diagnostics 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 Core Diagnostics Limited do?
Core Diagnostics Limited is registered under Maintenance and repair of motor vehicles (SIC 45200); Other transportation support activities (SIC 52290).
How old is Core Diagnostics Limited?
Core Diagnostics Limited was incorporated on 9 January 2020, 6 years ago.
What is the penalty if Core Diagnostics 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 Core Diagnostics 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.