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- Sinclair Engineering Limited
Company profile · Mechanics and garages
Sinclair Engineering Limited
Sinclair Engineering Limited is a 6-year-old private limited company registered in Ilford, company number 12356256, one of 173 vehicle repair garages in Ilford. 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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Financial snapshot, 2025
From the balance sheet at 31 December 2025, as filed at Companies House.
Sinclair Engineering Limited over the years
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 £4,252 (+141.8%) on the year before, to £7,250.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £8,802 against £11K owed within a year: 0.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £7,250 | £8,442 | £8,802 | £11K | 1 |
| 31 Dec 2024 | £2,998 | £6,708 | £8,554 | £10K | 1 |
| 31 Dec 2023 | £1,930 | £4,863 | £8,496 | 1 | |
| 31 Dec 2022 | -£2,382 | £8,688 | £18K | 1 | |
| 31 Dec 2021 | £58 | £33K | £33K | £16K | 0 |
| 31 Dec 2020 | £90 | £29K | £38K | £13K | 0 |
Where Sinclair Engineering Limited is registered
The registered office is in Ilford (IG6), in the Redbridge local authority area, London. Show IG6 1HU on a map.
Other trade companies in IG6
- Redbridge UK HVAC LimitedPlumbers and heating engineers
- Tash Taxi Recovery LimitedMechanics and garages
- Ecomold Service LtdBuilders
- Gilbert Scaffolding UK LtdScaffolders
- J&S Eastside Property Services LtdGroundworks and demolition
- MK Safe Spark Electrics LtdElectricians
- Ar Premier Cars LtdMotor traders
- Bsaha LtdProperty developers
What happens if Sinclair Engineering 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
- 12356256
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2019 (6 years ago)
- Registered office
- Rear of 714, Cranbrook Road, Ilford, IG6 1HU
- 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
- 2 December 2025
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 Ilford
Other active vehicle repair garages registered in Ilford.
- SK MOT Testing Centre Limited2017
- SK Performance Ltd2026
- SKM Works Ltd2025
- Sma Repair Centre Ltd2020
- SR Detailing Ltd2024
- SSKJ Services Limited2025
- Supercar Service London Ltd2023
- Supercar Service Ltd2009
All vehicle repair garages in Ilford · All trades in Ilford · Mechanics and garages across the UK
Frequently asked questions
When are Sinclair Engineering Limited's accounts due?
Sinclair Engineering Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Sinclair Engineering 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 Sinclair Engineering Limited still trading?
Sinclair Engineering 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 Sinclair Engineering Limited do?
Sinclair Engineering Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Sinclair Engineering Limited?
Sinclair Engineering Limited was incorporated on 9 December 2019, 6 years ago.
What is the penalty if Sinclair Engineering 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 Sinclair Engineering 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.