Company profile · Builders
Jon Brown Limited
Jon Brown Limited is a 22-year-old private limited company registered in Newport, company number 05186068, one of 204 building contractors in Newport. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 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 30 March 2025, as filed at Companies House.
Jon Brown 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 down £49K (-68.4%) on the year before, to £23K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £37K against £46K owed within a year: 0.8 times cover.
- 4 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Mar 2025 | £23K | £37K | £46K | 4 | |
| 30 Mar 2024 | £71K | £83K | £55K | 4 | |
| 31 Mar 2023 | £6,333 | £50K | £62K | 5 | |
| 31 Mar 2022 | £9,025 | £46K | £61K | 5 | |
| 31 Mar 2021 | £35K | £47K | £39K | 6 | |
| 31 Mar 2020 | £38K | £62K | £48K | 7 | |
| 31 Mar 2019 | £25K | £71K | £61K | ||
| 31 Mar 2018 | £2,042 | £31K | £48K | ||
| 31 Mar 2017 | £23K | £74K | £63K | ||
| 31 Mar 2016 | £15K | £113K | £101K |
Where Jon Brown Limited is registered
The registered office is in Newport (PO30), in the Isle of Wight local authority area, South East. Show PO30 5BZ on a map.
Other trade companies in PO30
- Fet Property & Transport LtdProperty developers
- RMJ Property LimitedProperty developers
- J D Lower Plumbing and Heating LtdPlumbers and heating engineers
- Otta Carpentry LtdJoiners and carpenters
- Probuild Iw LtdBuilders
- Island Electrical & Solar LtdElectricians
- Paul's Carpet LtdFloor and wall tilers
- Jack of All Trades Iw LtdCleaning companies
Shared registered office
33 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 Jon Brown 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 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 | 31 Mar 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 | 30 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
- 05186068
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 July 2004 (22 years ago)
- Registered office
- Exchange House, ST. Cross Lane, Newport, Isle Of Wight, PO30 5BZ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Electrical installation (SIC 43210) - Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 March 2025
- Last confirmation statement
- 28 April 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Newport
Other active building contractors registered in Newport.
- JPR’S Building Solutions Ltd.2025
- JR Superior Homes Ltd2020
- JS & K Construction Ltd2026
- JTV Brickwork Ltd2024
- K & T Construction Services Ltd2018
- K Gotobed Limited2016
- K M Construction and Maintenance Ltd2022
- Kelemen Building Contractors Ltd2026
All building contractors in Newport · All trades in Newport · Builders across the UK
Frequently asked questions
When are Jon Brown Limited's accounts due?
Jon Brown Limited's next accounts are due at Companies House by 30 December 2026 (in 79 days), covering the period to 30 March 2026.
When is Jon Brown Limited's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Jon Brown Limited still trading?
Jon Brown 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 Jon Brown Limited do?
Jon Brown Limited is registered under Construction of commercial buildings (SIC 41201); Electrical installation (SIC 43210).
How old is Jon Brown Limited?
Jon Brown Limited was incorporated on 21 July 2004, 22 years ago.
What is the penalty if Jon Brown 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 Jon Brown 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.