- Companies
- Mechanics and garages
- Doncaster
- Thatcham Systems Limited
Thatcham Systems Limited
- Company number
- 05528149
- Incorporated
- 4 Aug 200521 years trading
- Registered office
- 103 Doncaster Lane, Woodlands, Doncaster, South Yorkshire, DN6 7LJ
- Nature of business
- Maintenance and repair of motor vehicles
Thatcham Systems Limited is a 21-year-old private limited company registered in Doncaster, company number 05528149, one of 271 vehicle repair garages in Doncaster. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £2,043 (+15.6%) on the year before, to £15K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £14K against £31K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £15K | £14K | £31K | 2 | |
| 31 Aug 2024 | £13K | £18K | £34K | 2 | |
| 31 Aug 2023 | £11K | £20K | £36K | 2 | |
| 31 Aug 2022 | £11K | £24K | £42K | 2 | |
| 31 Aug 2021 | £11K | £22K | £41K | 2 | |
| 31 Aug 2020 | £6,160 | £20K | £36K | 2 | |
| 31 Aug 2019 | £6,588 | £22K | £42K | 2 | |
| 31 Aug 2018 | £4,017 | £22K | £43K | ||
| 31 Aug 2017 | £2,405 | £26K | £43K | ||
| 31 Aug 2016 | £271 | £24K | £43K |
Where Thatcham Systems Limited is registered
The registered office is in Doncaster (DN6), in the Doncaster local authority area, Yorkshire and The Humber. Show DN6 7LJ on a map.
Other trade companies in DN6
- Road Services LtdBuilders
- Road Repairs LtdCivil engineering
- Booth & Son Building & Landscapes LtdFinishing trades
- BP Solar LtdElectricians
- Galestra LtdMechanics and garages
- Paneperfect LtdCleaning companies
- A.B Building Preservation LtdCleaning companies
- 795 Construction LtdBuilders
What happens if Thatcham Systems 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 05528149
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 August 2005 (21 years ago)
- Registered office
- 103 Doncaster Lane, Woodlands, Doncaster, South Yorkshire, DN6 7LJ
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 24 August 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 Doncaster
Other active vehicle repair garages registered in Doncaster.
- The Detail Garage Ltd2025
- The Spray Shop Limited2024
- Tigers Autos Ltd2026
- Time to Shine (Moorends) Ltd2024
- Time to Shine PPF & Detailing Ltd2024
- TJ Paint and Panel Ltd2023
- TNV Valeting Ltd2021
- Tobityres Limited2026
All vehicle repair garages in Doncaster · All trades in Doncaster · Mechanics and garages across the UK
Frequently asked questions
When are Thatcham Systems Limited's accounts due?
Thatcham Systems Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Thatcham Systems Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Thatcham Systems Limited still trading?
Thatcham Systems 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 Thatcham Systems Limited do?
Thatcham Systems Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Thatcham Systems Limited?
Thatcham Systems Limited was incorporated on 4 August 2005, 21 years ago.
What is the penalty if Thatcham Systems 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 Thatcham Systems 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.