- Companies
- Mechanics and garages
- London
- The Smallest Cog Limited
The Smallest Cog Limited
- Company number
- 13133877
- Incorporated
- 14 Jan 20215 years trading
- Registered office
- 71 Queen Victoria Street, London, EC4V 4BE
- Nature of business
- Maintenance and repair of motor vehicles
The Smallest Cog Limited is a 5-year-old private limited company registered in London, company number 13133877, one of 2,410 vehicle repair garages in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £125K (-29.6%) on the year before, to -£546K.
- Net assets rose in 0 of 3 year-on-year comparisons on record.
- Current assets of £137K against £704K owed within a year: 0.2 times cover.
- 5 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£546K | £53K | £137K | £704K | 5 |
| 31 Mar 2024 | -£421K | £19K | £59K | £563K | 5 |
| 31 Mar 2023 | -£317K | £6,418 | £34K | £469K | 5 |
| 31 Mar 2022 | -£201K | £3,726 | £41K | £412K | 3 |
Where The Smallest Cog Limited is registered
The registered office is in London (EC4V), in the City of London local authority area, London. Show EC4V 4BE on a map.
Other trade companies in EC4V
- Myco Prima LimitedFinishing trades
- Sja Atlas & Bailey Property LtdProperty developers
- Calcarcan Property LtdProperty developers
- Molu London FM LtdPlumbers and heating engineers
- Dolomiti Dwellings LimitedProperty developers
- Censeo Design & Build LtdSpecialist contractors
- Clean Mark Group LimitedCleaning companies
- Southey Consulting LtdCivil engineering
Shared registered office
26 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 The Smallest Cog 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13133877
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 January 2021 (5 years ago)
- Registered office
- 71 Queen Victoria Street, London, EC4V 4BE
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 13 January 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 London
Other active vehicle repair garages registered in London.
- The Speciality Supply Company Ltd2004
- The Tyre Shop of London Ltd2022
- The Vehicle Check Developments Ltd2025
- The Wash London Ltd2023
- The Winchmore Hill Service Centre Ltd2016
- The Wrap Centre Ltd2020
- Thedetaillab Ltd2026
- Theenginehub Limited2026
All vehicle repair garages in London · All trades in London · Mechanics and garages across the UK
Frequently asked questions
When are The Smallest Cog Limited's accounts due?
The Smallest Cog Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is The Smallest Cog Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is The Smallest Cog Limited still trading?
The Smallest Cog 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 The Smallest Cog Limited do?
The Smallest Cog Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is The Smallest Cog Limited?
The Smallest Cog Limited was incorporated on 14 January 2021, 5 years ago.
What is the penalty if The Smallest Cog 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 The Smallest Cog 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.