- Companies
- Machinery repair and installation
- Finchley
- Class J Electronics Limited
Class J Electronics Limited
- Company number
- 07636263
- Incorporated
- 17 May 201115 years trading
- Registered office
- 3RD Floor Marlborough House, 298 Regents Park Road, Finchley, London, N3 2SZ
- Nature of business
- Repair of electronic and optical equipment
Class J Electronics Limited is a 15-year-old private limited company registered in Finchley, company number 07636263, one of the UK's machinery repair and installation companies. Companies House shows its accounts as overdue: they were due on 31 May 2026.
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 £354 (+19.1%) on the year before, to £2,209.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £5,990 against £2,220 owed within a year: 2.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2024 | £2,209 | £1,560 | £5,990 | £2,220 | 1 |
| 31 May 2023 | £1,855 | £1,506 | £5,548 | £1,324 | 1 |
| 31 May 2022 | £1,135 | £1,913 | £5,720 | £1,305 | 1 |
| 31 May 2021 | £4,473 | £1,300 | £9,791 | £1,285 | 1 |
| 31 May 2020 | £7,526 | £16K | £18K | £5,842 | 1 |
| 31 May 2019 | -£446 | £1,985 | £4,945 | £5,391 | |
| 31 May 2018 | -£762 | £1,329 | £3,839 | £4,601 | |
| 31 May 2017 | -£973 | £1,419 | £3,472 | £4,445 | |
| 31 May 2016 | -£1,815 | £1,392 | £3,836 | £5,651 | |
| 31 May 2015 | -£20 | £9,130 | £11K | £11K |
Who runs and owns Class J Electronics Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** A*** | Director | May 2011 |
Person with significant control
Where Class J Electronics Limited is registered
The registered office is in Finchley (N3), in the Barnet local authority area, London. Show N3 2SZ on a map.
Other trade companies in N3
- Key & Keep LtdCleaning companies
- GMS Residential LimitedPlumbers and heating engineers
- Gcap East LtdProperty developers
- Tatras Development LimitedProperty developers
- Chesterfield Corinne LtdProperty developers
- Pure Plumbing Pros LimitedPlumbers and heating engineers
- WS Cleaning Services LtdCleaning companies
- Landfall Projects LimitedProperty developers
Shared registered office
34 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 Class J Electronics Limited files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2026 to 30 Jun 2026 | £150 |
| 1 to 3 months late | 1 Jul 2026 to 31 Aug 2026 | £375 |
| 3 to 6 months late | 1 Sep 2026 to 30 Nov 2026 | £750 |
| More than 6 months late | From 1 Dec 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2026 | £200 |
| 3 months late | 30 Nov 2026 | another £200 |
| 6 months late | 28 Feb 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2027 | 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
- 07636263
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 2011 (15 years ago)
- Registered office
- 3RD Floor Marlborough House, 298 Regents Park Road, Finchley, London, N3 2SZ
- Nature of business
- Repair of electronic and optical equipment (SIC 33130)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2024
- Last confirmation statement
- 14 July 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Finchley
Other active machinery repair and installation companies registered in Finchley.
All machinery repair and installation companies in Finchley · All trades in Finchley · Machinery repair and installation across the UK
Frequently asked questions
When are Class J Electronics Limited's accounts due?
Class J Electronics Limited's accounts were due at Companies House on 31 May 2026 and the register shows them as overdue.
When is Class J Electronics Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 May 2025, due by 31 May 2026, and one for the period to 31 August 2025, due by 31 August 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Class J Electronics Limited still trading?
Class J Electronics Limited is listed as active on the Companies House register (checked 12 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 Class J Electronics Limited do?
Class J Electronics Limited is registered under Repair of electronic and optical equipment (SIC 33130).
How old is Class J Electronics Limited?
Class J Electronics Limited was incorporated on 17 May 2011, 15 years ago.
Who runs Class J Electronics Limited?
Class J Electronics Limited has 1 active director, the longest-serving appointed in May 2011. Their names and service addresses are on the Companies House register.
Who owns Class J Electronics Limited?
One person or company has significant control of Class J Electronics Limited: an individual (owns 75% or more of the shares).
What is the penalty if Class J Electronics 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 Class J Electronics Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.