- Companies
- Installers
- Aberdeen
- JK Improvement Limited
JK Improvement Limited
- Company number
- SC656953
- Incorporated
- 10 Mar 20206 years trading
- Registered office
- 5 Corthan Place, Aberdeen, AB12 5AS
- Nature of business
- Other construction installation
JK Improvement Limited is a 6-year-old private limited company registered in Aberdeen, company number SC656953, one of 37 installation companies (insulation, lifts, shutters and similar) in Aberdeen. 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 £10K (-88.2%) on the year before, to £1,371.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £4,011 against £12K owed within a year: 0.3 times cover.
- 2 employees on average, up from 1 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 | £1,371 | £4,011 | £12K | 2 | |
| 31 Mar 2025 | £12K | £18K | £7,255 | 1 | |
| 31 Mar 2024 | £420 | £8,563 | £9,143 | 2 | |
| 31 Mar 2023 | £114 | £7,619 | £9,005 | 4 | |
| 31 Mar 2022 | £166 | £8,054 | £9,675 | £9,659 | 4 |
| 31 Mar 2021 | £265 | £13K | £16K | £16K | 2 |
Where JK Improvement Limited is registered
The registered office is in Aberdeen (AB12), in the Aberdeen City local authority area, Scotland. Show AB12 5AS on a map.
Other trade companies in AB12
- Scoel LtdSpecialist contractors
- VJR Mechtech LtdMachinery repair and installation
- NDS Access. LtdCleaning companies
- Control Valve Support LtdMachinery repair and installation
- Emr Homeservice LimitedPlumbers and heating engineers
- Macgregor Fabrications LtdSpecialist contractors
- Wke LtdMachinery repair and installation
- Joshconstruction&Metal LimitedSpecialist contractors
What happens if JK Improvement 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 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
- SC656953
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 March 2020 (6 years ago)
- Registered office
- 5 Corthan Place, Aberdeen, AB12 5AS
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 16 February 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Aberdeen
Other active installation companies (insulation, lifts, shutters and similar) registered in Aberdeen.
- Jserv Limited2025
- KT IT Technology Ltd2023
- Modulus Tech Limited2025
- N Gordon Installations Limited2023
- Optimum Garage Doors Ltd2021
- Otpm Ltd2022
- Paul Taylor Bricklaying Limited2024
- PDL Builds Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Aberdeen · All trades in Aberdeen · Installers across the UK
Frequently asked questions
When are JK Improvement Limited's accounts due?
JK Improvement Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is JK Improvement Limited'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 JK Improvement Limited still trading?
JK Improvement 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 JK Improvement Limited do?
JK Improvement Limited is registered under Other construction installation (SIC 43290).
How old is JK Improvement Limited?
JK Improvement Limited was incorporated on 10 March 2020, 6 years ago.
What is the penalty if JK Improvement 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 JK Improvement 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.