- Companies
- Motor traders
- Hailsham
- Diagnostek Limited
Diagnostek Limited
- Company number
- 14528152
- Incorporated
- 7 Dec 20223 years trading
- Registered office
- 30-34 North Street, Hailsham, BN27 1DW
- Nature of business
- Sale of used cars and light motor vehicles
Diagnostek Limited is a 3-year-old private limited company registered in Hailsham, company number 14528152, one of 25 motor trade companies in Hailsham. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £24K (+611%) on the year before, to £28K.
- Current assets of £232K against £204K owed within a year: 1.1 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £28K | £15K | £232K | £204K | 2 |
| 31 Dec 2024 | £3,960 | £22K | £183K | £179K | 2 |
| 31 Dec 2023 | £513 | £23K | £161K | £161K | 2 |
Where Diagnostek Limited is registered
The registered office is in Hailsham (BN27), in the Wealden local authority area, South East. Show BN27 1DW on a map.
Other trade companies in BN27
- Smithy’S Autos Mobile Mechanic LtdMechanics and garages
- Trinity Build Group LtdInstallers
- Brighton Laundry Lady LtdCleaning companies
- Corelink FM LtdProperty developers
- Grimebusters LtdCleaning companies
- Sequoia Fire Protection LimitedInstallers
- Eagle and Wolf Construction LtdBuilders
- Worcester Plumbing & Heating LtdPlumbers and heating engineers
Shared registered office
219 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Diagnostek 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 14528152
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 December 2022 (3 years ago)
- Registered office
- 30-34 North Street, Hailsham, BN27 1DW
- Nature of business
- Sale of used cars and light motor vehicles (SIC 45112)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 6 December 2025
Filing notes for motor trade companies
Motor trade companies hold vehicle stock, and how that stock is valued at the year end moves the profit directly. Some use the VAT margin scheme.
Similar companies in Hailsham
Other active motor trade companies registered in Hailsham.
- Fastline Pty Ltd2006
- Geapana Ltd2020
- Giffard Distribution Ltd2022
- J S Gedge Limited2002
- MJ Cars (Sussex) Limited2026
- Monsoon Automotive Limited1982
- MPS Trading Ltd.2001
- RD Custombikes Ltd2014
All motor trade companies in Hailsham · All trades in Hailsham · Motor traders across the UK
Frequently asked questions
When are Diagnostek Limited's accounts due?
Diagnostek Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Diagnostek Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Diagnostek Limited still trading?
Diagnostek 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 Diagnostek Limited do?
Diagnostek Limited is registered under Sale of used cars and light motor vehicles (SIC 45112).
How old is Diagnostek Limited?
Diagnostek Limited was incorporated on 7 December 2022, 3 years ago.
What is the penalty if Diagnostek 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 Diagnostek 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.