- Companies
- Mechanics and garages
- Portsmouth
- On Site Services (Southern) Limited
On Site Services (Southern) Limited
- Company number
- 08790322
- Incorporated
- 26 Nov 201312 years trading
- Registered office
- 6 ST. Georges Square, Portsmouth, PO1 3EY
- Nature of business
- Maintenance and repair of motor vehicles
On Site Services (Southern) Limited is a 12-year-old private limited company registered in Portsmouth, company number 08790322, one of 104 vehicle repair garages in Portsmouth. 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 £104K (+19.2%) on the year before, to £647K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £901K against £373K owed within a year: 2.4 times cover.
- 20 employees on average, down from 25 the year before.
- 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 Dec 2025 | £647K | £241K | £901K | £373K | 20 |
| 31 Dec 2024 | £543K | £407K | £910K | £454K | 25 |
| 31 Dec 2023 | £475K | £220K | £727K | £349K | 16 |
| 31 Dec 2022 | £394K | £166K | £517K | £390K | 15 |
| 31 Dec 2021 | £304K | £240K | £491K | £363K | 14 |
| 31 Dec 2020 | £202K | £279K | £508K | £422K | 12 |
| 31 Dec 2019 | £137K | £99K | £318K | £320K | 13 |
| 31 Dec 2018 | £175K | £81K | £243K | £166K | 9 |
| 31 Dec 2017 | £198K | £135K | £269K | £109K | 0 |
| 31 Dec 2016 | £159K | £168K | £256K | £132K | 6 |
Where On Site Services (Southern) Limited is registered
The registered office is in Portsmouth (PO1), in the Portsmouth local authority area, South East. Show PO1 3EY on a map.
Other trade companies in PO1
- Design 1805 Southern LtdJoiners and carpenters
- Portsmouth Roofing LtdRoofers
- Peterborough Mews (London) LimitedProperty developers
- Doxa Facility Group LtdCleaning companies
- Crestpoint Cleaning & Facilities LtdCleaning companies
- Dark Rose Cleaning Co LtdCleaning companies
- PDS Garage Services LtdMechanics and garages
- HDF Roofing LtdRoofers
Shared registered office
41 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 On Site Services (Southern) 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
- 08790322
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 November 2013 (12 years ago)
- Registered office
- 6 ST. Georges Square, Portsmouth, PO1 3EY
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 4 December 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Coast Auto Electrics Limited (until 16 Jan 2014)
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 Portsmouth
Other active vehicle repair garages registered in Portsmouth.
- PDJM Motors Limited2018
- PDS Garage Services Ltd2026
- Pit Stop Autos JK Ltd2025
- Pompey Garage and Tyre Service Ltd2025
- Port Solent Car Centre Limited2021
- Portsmouth Autos Ltd2026
- Portsmouth MOT Centre Limited2021
- Powerscourt Motors Ltd2013
All vehicle repair garages in Portsmouth · All trades in Portsmouth · Mechanics and garages across the UK
Frequently asked questions
When are On Site Services (Southern) Limited's accounts due?
On Site Services (Southern) 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 On Site Services (Southern) 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 On Site Services (Southern) Limited still trading?
On Site Services (Southern) 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 On Site Services (Southern) Limited do?
On Site Services (Southern) Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is On Site Services (Southern) Limited?
On Site Services (Southern) Limited was incorporated on 26 November 2013, 12 years ago.
What is the penalty if On Site Services (Southern) 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 On Site Services (Southern) 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.