- Companies
- Mechanics and garages
- Londonderry
- Diesel Tech Ltd
Diesel Tech Ltd
- Company number
- NI728523
- Incorporated
- 13 Apr 20251 year trading
- Registered office
- Unit 3 14 Courtauld Way, Campsie, Londonderry, BT47 3DN
- Nature of business
- Maintenance and repair of motor vehicles
Diesel Tech Ltd is a 1-year-old private limited company registered in Londonderry, company number NI728523, one of 16 vehicle repair garages in Londonderry. Its next accounts are due at Companies House on 13 January 2027, and its first CT600 is due at HMRC on 12 April 2027.
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 Diesel Tech Ltd is registered
The registered office is in Londonderry (BT47), in the Derry City and Strabane local authority area, Northern Ireland. Show BT47 3DN on a map.
Other trade companies in BT47
- RNK Contracts LimitedGroundworks and demolition
- Den Electrical LtdElectricians
- BDK Consulting LimitedProperty developers
- Oakline Engineering LtdInstallers
- Killew Property Services LimitedFacilities management
- PH Autobody LimitedMechanics and garages
- C Doherty Autos LtdMechanics and garages
- CPMH LtdBuilders
What happens if Diesel Tech 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 13 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Jan 2027 to 13 Feb 2027 | £150 |
| 1 to 3 months late | 14 Feb 2027 to 13 Apr 2027 | £375 |
| 3 to 6 months late | 14 Apr 2027 to 13 Jul 2027 | £750 |
| More than 6 months late | From 14 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- NI728523
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 April 2025 (1 year ago)
- Registered office
- Unit 3 14 Courtauld Way, Campsie, Londonderry, BT47 3DN
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 12 April 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 Londonderry
Other active vehicle repair garages registered in Londonderry.
- K C Rally Service Ltd2008
- Legenderry Ab Ltd2019
- SF Motofix Ltd2026
- Shane Transport Ltd2014
- Turbo Sparks Ltd2015
- Tyre Service Centre Limited2023
- WV Works Limited2015
- C Doherty Autos Ltd2026
All vehicle repair garages in Londonderry · All trades in Londonderry · Mechanics and garages across the UK
Frequently asked questions
When are Diesel Tech Ltd's accounts due?
Diesel Tech Ltd's next accounts are due at Companies House by 13 January 2027 (in 92 days), covering the period to 30 April 2026.
When is Diesel Tech 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 12 April 2026, due by 12 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diesel Tech Ltd still trading?
Diesel Tech 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 Diesel Tech Ltd do?
Diesel Tech Ltd is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Diesel Tech Ltd?
Diesel Tech Ltd was incorporated on 13 April 2025, 1 year ago.
What is the penalty if Diesel Tech 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 Diesel Tech 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.