- Companies
- Mechanics and garages
- Bury St Edmunds
- First Start Diagnostics Ltd
First Start Diagnostics Ltd
- Company number
- 16973792
- Incorporated
- 19 Jan 2026
- Registered office
- 32A James Carter Road, Mildenhall, Bury St Edmunds, IP28 7DE
- Nature of business
- Maintenance and repair of motor vehicles
First Start Diagnostics Ltd is a newly incorporated private limited company registered in Bury St Edmunds, company number 16973792, one of 74 vehicle repair garages in Bury St Edmunds. Its next accounts are due at Companies House on 19 October 2027, and its first CT600 is due at HMRC on 18 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where First Start Diagnostics Ltd is registered
The registered office is in Bury St Edmunds (IP28), in the West Suffolk local authority area, East of England. Show IP28 7DE on a map.
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What happens if First Start 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 19 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Oct 2027 to 19 Nov 2027 | £150 |
| 1 to 3 months late | 20 Nov 2027 to 19 Jan 2028 | £375 |
| 3 to 6 months late | 20 Jan 2028 to 19 Apr 2028 | £750 |
| More than 6 months late | From 20 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16973792
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 January 2026
- Registered office
- 32A James Carter Road, Mildenhall, Bury St Edmunds, IP28 7DE
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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 Bury St Edmunds
Other active vehicle repair garages registered in Bury St Edmunds.
- Fiveways Garage Ltd2019
- FXS Motoworx Ltd2026
- GLK Consulting Ltd2025
- Goldline Engineering Ltd2012
- Haynes Detailing Ltd2025
- Ice Garage Limited2025
- Indiana (GB) Limited2011
- J H Commercial Vehicle Services Ltd2026
All vehicle repair garages in Bury St Edmunds · All trades in Bury St Edmunds · Mechanics and garages across the UK
Frequently asked questions
When are First Start Diagnostics Ltd's accounts due?
First Start Diagnostics Ltd's next accounts are due at Companies House by 19 October 2027 (in 372 days), covering the period to 31 January 2027.
When is First Start Diagnostics Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 18 January 2027, due by 18 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is First Start Diagnostics Ltd still trading?
First Start 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 First Start Diagnostics Ltd do?
First Start Diagnostics Ltd is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is First Start Diagnostics Ltd?
First Start Diagnostics Ltd was incorporated on 19 January 2026, less than a year ago.
What is the penalty if First Start 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 First Start 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.