- Companies
- Mechanics and garages
- Birmingham
- Birmingham Diagnostics Ltd
Birmingham Diagnostics Ltd
- Company number
- 12688561
- Incorporated
- 22 Jun 20206 years trading
- Registered office
- 129 Edward Road, Balsall Heath, Birmingham, B12 9JQ
- Nature of business
- Maintenance and repair of motor vehicles; Wholesale trade of motor vehicle parts and accessories
Birmingham Diagnostics Ltd is a 6-year-old private limited company registered in Birmingham, company number 12688561, one of 1,013 vehicle repair garages in Birmingham. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 down £2,782 (-29.3%) on the year before, to £6,716.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £13K against £5,981 owed within a year: 2.1 times cover.
- 1 employee on average during the year.
- 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 Jun 2025 | £6,716 | £1,534 | £13K | £5,981 | 1 |
| 30 Jun 2024 | £9,498 | £2,418 | £12K | £2,671 | 1 |
| 30 Jun 2023 | £5,485 | £1,083 | £7,133 | £1,648 | 1 |
| 30 Jun 2022 | £1,589 | £739 | £2,189 | £600 | 1 |
| 30 Jun 2021 | £721 | £167 | £1,267 | £546 | 1 |
Where Birmingham Diagnostics Ltd is registered
The registered office is in Birmingham (B12), in the Birmingham local authority area, West Midlands. Show B12 9JQ on a map.
Other trade companies in B12
- Proton Tech Electrical LtdElectricians
- Leopold Auto LimitedMechanics and garages
- Apex Cleaners LtdCleaning companies
- Altitude Build Group LimitedGlaziers
- Glazed Direct LtdGlaziers
- Calderstead Facilities Management LtdFacilities management
- Repair Garage LimitedMechanics and garages
- Commercial Cleaning Services LtdCleaning companies
Also registered at this address
3 other companies use the same registered office as Birmingham Diagnostics Ltd.
- Billingham Electrical LimitedElectricians
- D & V Construction and Maintenance Contractors LimitedInstallers
- Morgan Landscaping LimitedLandscapers and gardeners
What happens if Birmingham Diagnostics 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12688561
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 June 2020 (6 years ago)
- Registered office
- 129 Edward Road, Balsall Heath, Birmingham, B12 9JQ
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
Wholesale trade of motor vehicle parts and accessories (SIC 45310) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 21 June 2026
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 Birmingham
Other active vehicle repair garages registered in Birmingham.
- Birmingham Headlight Restorations Limited2024
- Birmingham Mechanics Ltd2022
- Birmingham Mobile Mechanics Ltd2026
- Birmingham Motorcycle Repair Ltd2022
- Birmingham Motorist Centre Limited2003
- Birmingham Test Centre Limited2011
- Birmingham Tyres Ltd2023
- Birmingham Tyres World Limited2024
All vehicle repair garages in Birmingham · All trades in Birmingham · Mechanics and garages across the UK
Frequently asked questions
When are Birmingham Diagnostics Ltd's accounts due?
Birmingham Diagnostics Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Birmingham Diagnostics Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Birmingham Diagnostics Ltd still trading?
Birmingham Diagnostics 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 Birmingham Diagnostics Ltd do?
Birmingham Diagnostics Ltd is registered under Maintenance and repair of motor vehicles (SIC 45200); Wholesale trade of motor vehicle parts and accessories (SIC 45310).
How old is Birmingham Diagnostics Ltd?
Birmingham Diagnostics Ltd was incorporated on 22 June 2020, 6 years ago.
What is the penalty if Birmingham Diagnostics 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 Birmingham Diagnostics 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.