- Companies
- Motor traders
- Southampton
- Octagon Southern Ltd
Octagon Southern Ltd
- Company number
- 12391268
- Incorporated
- 8 Jan 20206 years trading
- Registered office
- 34 Radway Road, Upper Shirley, Southampton, Hampshire, SO15 7PJ
- Nature of business
- Sale of used cars and light motor vehicles
Octagon Southern Ltd is a 6-year-old private limited company registered in Southampton, company number 12391268, one of 239 motor trade companies in Southampton. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 down £4,285 (-5.3%) on the year before, to £76K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £109K against £33K owed within a year: 3.3 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £76K | £53K | £109K | £33K | 2 |
| 31 Mar 2025 | £81K | £61K | £122K | £42K | 3 |
| 31 Mar 2024 | £85K | £90K | £136K | £50K | 2 |
| 31 Mar 2023 | £47K | £48K | £91K | £43K | 2 |
| 31 Mar 2022 | £33K | £46K | £88K | £56K | 2 |
| 31 Mar 2021 | £16K | £53K | £90K | £73K | 1 |
Where Octagon Southern Ltd is registered
The registered office is in Southampton (SO15), in the Southampton local authority area, South East. Show SO15 7PJ on a map.
Other trade companies in SO15
- Enginetek Marine LimitedMachinery repair and installation
- The DPF Guy LtdMechanics and garages
- Redbridge Accident Repair LtdMechanics and garages
- Mahakali Engineer Services LtdMachinery repair and installation
- Genuinecarpartsuk LtdMotor traders
- MK Cars & Parts LtdMotor traders
- SMS Building LimitedFinishing trades
- Sonridge Building Group LtdCivil engineering
Also registered at this address
13 other companies use the same registered office as Octagon Southern Ltd.
- Brookfield Heating LtdPlumbers and heating engineers
- Electrical Ventilation Renewables LtdInstallers
- Hannan Plumbing & Heating LtdPlumbers and heating engineers
- J&G Gibbs LimitedCivil engineering
- JMC Builders LtdSpecialist contractors
- MCC Electrical LtdElectricians
- NFT Scaffolding LtdScaffolders
- PBH Construction LtdFinishing trades
- PMW Carpentry & Building Services LtdSpecialist contractors
- Preventive UK LtdSpecialist contractors
- Signature Roofing LimitedRoofers
- Thenic Projects LtdInstallers
- WRH Solutions LtdElectricians
What happens if Octagon Southern 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 12391268
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 January 2020 (6 years ago)
- Registered office
- 34 Radway Road, Upper Shirley, Southampton, Hampshire, SO15 7PJ
- Nature of business
- Sale of used cars and light motor vehicles (SIC 45112)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 1 April 2026
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 Southampton
Other active motor trade companies registered in Southampton.
- Outlandish Logistics Limited2025
- Paddington Motor Parts Limited2009
- Paints Pro Limited2026
- Pat's Garage (Lyndhurst) Limited1946
- Pathway Cars UK Ltd2026
- Picador Limited1963
- Primevalue Cars Ltd2026
- Pursuit Worldwide Ltd2020
All motor trade companies in Southampton · All trades in Southampton · Motor traders across the UK
Frequently asked questions
When are Octagon Southern Ltd's accounts due?
Octagon Southern Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Octagon Southern Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Octagon Southern Ltd still trading?
Octagon Southern 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 Octagon Southern Ltd do?
Octagon Southern Ltd is registered under Sale of used cars and light motor vehicles (SIC 45112).
How old is Octagon Southern Ltd?
Octagon Southern Ltd was incorporated on 8 January 2020, 6 years ago.
What is the penalty if Octagon Southern 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 Octagon Southern 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.