- Companies
- Mechanics and garages
- Smethwick
- Auto Diagnostic Center Limited
Auto Diagnostic Center Limited
- Company number
- 08603836
- Incorporated
- 10 Jul 201313 years trading
- Registered office
- Former Ionic Works Unit 1, Grove Street, Smethwick, West Midlands, B66 2QS
- Nature of business
- Maintenance and repair of motor vehicles
Auto Diagnostic Center Limited is a 13-year-old private limited company registered in Smethwick, company number 08603836, one of 77 vehicle repair garages in Smethwick. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 30 July 2026 is due at HMRC on 30 July 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 £957 (+1.7%) on the year before, to -£55K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £2,160 against £44K owed within a year: 0.0 times cover.
- 5 employees on average, down from 6 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | -£55K | £160 | £2,160 | £44K | 5 |
| 31 Jul 2024 | -£56K | £837 | £837 | £43K | 6 |
| 31 Jul 2023 | -£48K | £0 | £0 | £34K | 6 |
| 31 Jul 2022 | £5,482 | £5,905 | £26K | £5,018 | 7 |
| 31 Jul 2021 | £4,830 | £7,128 | £32K | £7,009 | 4 |
| 31 Jul 2020 | £3,543 | £14K | £27K | £3,069 | 1 |
| 31 Jul 2019 | £2,837 | £463 | £3,904 | £1,067 | 1 |
| 31 Jul 2018 | £1,004 | £463 | £463 | £650 | |
| 31 Jul 2017 | £1,767 | £834 | £834 | £1,451 | |
| 31 Jul 2016 | £1,483 | £1,654 | £1,654 | £3,748 |
Where Auto Diagnostic Center Limited is registered
The registered office is in Smethwick (B66), in the Sandwell local authority area, West Midlands. Show B66 2QS on a map.
Other trade companies in B66
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- SBH6 LtdBuilders
- A One Developers LtdBuilders
- Novacorebuild LtdBuilders
- SMJ Wholesale LimitedMotor traders
- DDM Renovations LtdBuilders
- Billworth LtdBuilders
- Brisk Fix LtdMechanics and garages
What happens if Auto Diagnostic Center 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Jul 2027 | £200 |
| 3 months late | 30 Oct 2027 | another £200 |
| 6 months late | 30 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jul 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
- 08603836
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 July 2013 (13 years ago)
- Registered office
- Former Ionic Works Unit 1, Grove Street, Smethwick, West Midlands, B66 2QS
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 30 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 7 March 2026
- Previous names
- A-Z Car Mechenical Repairs Limited (until 29 Nov 2013)
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 Smethwick
Other active vehicle repair garages registered in Smethwick.
- Auto Glow Car Wash Ltd2026
- Auto Stop Repair Ltd2021
- Autofit Birmingham Ltd2026
- Bayliss (Garages) Limited1960
- Bellefield Auto Services Ltd2024
- Birmingham Automotive Ltd2023
- Birmingham Iva Services Ltd2022
- BJM Motors Limited2026
All vehicle repair garages in Smethwick · All trades in Smethwick · Mechanics and garages across the UK
Frequently asked questions
When are Auto Diagnostic Center Limited's accounts due?
Auto Diagnostic Center Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 30 July 2026.
When is Auto Diagnostic Center Limited's CT600 due?
The CT600 for the period to 30 July 2026 is due at HMRC by 30 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Auto Diagnostic Center Limited still trading?
Auto Diagnostic Center 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 Auto Diagnostic Center Limited do?
Auto Diagnostic Center Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Auto Diagnostic Center Limited?
Auto Diagnostic Center Limited was incorporated on 10 July 2013, 13 years ago.
What is the penalty if Auto Diagnostic Center 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 Auto Diagnostic Center 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.