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  4. Autodiag Center Ltd

Autodiag Center Ltd

ActiveMicro-entity accountsMechanics and garagesBirmingham
Company number
12471096
Incorporated
19 Feb 20206 years trading
Registered office
Unit 14, Sapcote Business Centre, Birmingham, B10 0HR
Nature of business
Maintenance and repair of motor vehicles
Accounts due in
48 days
30 Nov 2026
From the Companies House register, 1 Oct 2026

Autodiag Center Ltd is a 6-year-old private limited company registered in Birmingham, company number 12471096, one of 1,013 vehicle repair garages in Birmingham. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Nov 2026
in 48 days
For the period to 28 Feb 2026
CT600 due
28 Feb 2027
in 138 days
Period 1 Mar 2025 to 28 Feb 2026
Corporation tax payment
1 Dec 2026
in 49 days
9 months and 1 day after the period end
Confirmation statement
4 Mar 2027
in 142 days
Last made up to 18 Feb 2026

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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 £742 (-3.9%) on the year before, to £18K.
  • Net assets rose in 2 of 4 year-on-year comparisons on record.
  • 3 employees on average, up from 2 the year before.
  • Balance sheets on record for 5 years, 2021 to 2025.

Net assets by year

Net assets at each year end, 2021 to 2025-£20K£028 February 2021: net assets -£13K-£13K202128 February 2022: net assets -£22K-£22K202228 February 2023: net assets -£21K-£21K202329 February 2024: net assets £19K£19K202428 February 2025: net assets £18K£18K2025
Net assets at each year end, 2021 to 2025-£20K£028 February 2021: net assets -£13K-£13K202128 February 2022: net assets -£22K-£22K202228 February 2023: net assets -£21K-£21K202329 February 2024: net assets £19K£19K202428 February 2025: net assets £18K£18K2025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
28 Feb 2025£18K£18K3
29 Feb 2024£19K£19K2
28 Feb 2023-£21K£21K2
28 Feb 2022-£22K£22K2
28 Feb 2021-£13K£13K2

Where Autodiag Center Ltd is registered

Autodiag Center Ltd's registered office on a map of the UK

The registered office is in Birmingham (B10), in the Birmingham local authority area, West Midlands. Show B10 0HR on a map.

Other trade companies in B10

What happens if Autodiag Center 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 30 November 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Dec 2026 to 31 Dec 2026£150
1 to 3 months late1 Jan 2027 to 28 Feb 2027£375
3 to 6 months late1 Mar 2027 to 31 May 2027£750
More than 6 months lateFrom 1 Jun 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Mar 2027£200
3 months late28 May 2027another £200
6 months late28 Aug 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late28 Feb 2028another 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
12471096
Status
Active
Company type
Private limited company
Incorporated
19 February 2020 (6 years ago)
Registered office
Unit 14, Sapcote Business Centre, Birmingham, B10 0HR
Nature of business
Maintenance and repair of motor vehicles (SIC 45200)
Year end
29 February (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
28 February 2025
Last confirmation statement
18 February 2026
Previous names
B&H Tronic Ltd (until 21 Feb 2020)

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.

All vehicle repair garages in Birmingham · All trades in Birmingham · Mechanics and garages across the UK

Frequently asked questions

When are Autodiag Center Ltd's accounts due?

Autodiag Center Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.

When is Autodiag Center Ltd's CT600 due?

The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.

Is Autodiag Center Ltd still trading?

Autodiag Center 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 Autodiag Center Ltd do?

Autodiag Center Ltd is registered under Maintenance and repair of motor vehicles (SIC 45200).

How old is Autodiag Center Ltd?

Autodiag Center Ltd was incorporated on 19 February 2020, 6 years ago.

What is the penalty if Autodiag Center 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 Autodiag Center Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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