- Companies
- Mechanics and garages
- Winchester
- TF Diagnostics Limited
TF Diagnostics Limited
- Company number
- 16886386
- Incorporated
- 2 Dec 2025
- Registered office
- 6 Charlecote Mews, Staple Gardens, Winchester, Hampshire, SO23 8SR
- Nature of business
- Maintenance and repair of motor vehicles
TF Diagnostics Limited is a newly incorporated private limited company registered in Winchester, company number 16886386, one of 33 vehicle repair garages in Winchester. Its next accounts are due at Companies House on 2 September 2027, and its first CT600 is due at HMRC on 1 December 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 TF Diagnostics Limited is registered
The registered office is in Winchester (SO23), in the Winchester local authority area, South East. Show SO23 8SR on a map.
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- Z Cubic Home LtdJoiners and carpenters
- Fordstone Groundworks & Civil Engineering LtdCivil engineering
- Osr Homes LtdBuilders
- Welborne LS LimitedProperty developers
- Charlecote Sussex LimitedSpecialist contractors
- Shorewood Pankridge Street LtdBuilders
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Also registered at this address
17 other companies use the same registered office as TF Diagnostics Limited.
- A and R Groundworks LtdGroundworks and demolition
- Allbrook Heating LimitedPlumbers and heating engineers
- Carsmart South LimitedMotor traders
- Classmaxi Developments (Solstice) LtdProperty developers
- Commercial & Specialist Cleaning LtdCleaning companies
- Composite Boatworks LimitedMachinery repair and installation
- Denley King International LimitedProperty developers
- Future Flooring LimitedFloor and wall tilers
- Greenkeeper Pro LimitedLandscapers and gardeners
- K & M Fencing LimitedInstallers
- Manor Electrical & Garage Services LimitedElectricians
- Mtec Scaffolding Services LtdScaffolders
- PCC Premier Car Care LtdMechanics and garages
- Poseidon 404 LimitedRoofers
- R3 SF LimitedFloor and wall tilers
- Routine Marine LimitedMachinery repair and installation
- The NJB Motor Company (UK) LimitedMotor traders
What happens if TF Diagnostics 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 2 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Sep 2027 to 2 Oct 2027 | £150 |
| 1 to 3 months late | 3 Oct 2027 to 2 Dec 2027 | £375 |
| 3 to 6 months late | 3 Dec 2027 to 2 Mar 2028 | £750 |
| More than 6 months late | From 3 Mar 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
- 16886386
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 December 2025
- Registered office
- 6 Charlecote Mews, Staple Gardens, Winchester, Hampshire, SO23 8SR
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 December (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 Winchester
Other active vehicle repair garages registered in Winchester.
- Tip Top Bodyworks Ltd2020
- Torque Xpress Ltd2026
- Village Garage (Colden Common) Limited2008
- Winchester MOT Centre Limited2001
- Accutek Ltd2014
- Andover Car Repairs Ltd2019
- Ash's Advanced Autos Ltd2025
- Beau Auto Services Ltd2026
All vehicle repair garages in Winchester · All trades in Winchester · Mechanics and garages across the UK
Frequently asked questions
When are TF Diagnostics Limited's accounts due?
TF Diagnostics Limited's next accounts are due at Companies House by 2 September 2027 (in 325 days), covering the period to 31 December 2026.
When is TF Diagnostics Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 1 December 2026, due by 1 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is TF Diagnostics Limited still trading?
TF Diagnostics 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 TF Diagnostics Limited do?
TF Diagnostics Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is TF Diagnostics Limited?
TF Diagnostics Limited was incorporated on 2 December 2025, less than a year ago.
What is the penalty if TF Diagnostics 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 TF Diagnostics 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.