- Companies
- Plumbers and heating engineers
- Bath
- Koolsystems Ltd
Koolsystems Ltd
- Company number
- 15662728
- Incorporated
- 20 Apr 20242 years trading
- Registered office
- 23 Northampton Street, Bath, BA1 2SW
- Nature of business
- Plumbing, heat and air-conditioning installation
Koolsystems Ltd is a 2-year-old private limited company registered in Bath, company number 15662728, one of 44 plumbing and heating companies in Bath. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 April 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Koolsystems Ltd is registered
The registered office is in Bath (BA1), in the Bath and North East Somerset local authority area, South West. Show BA1 2SW on a map.
Other trade companies in BA1
- Kindway 24 LtdCleaning companies
- 4TH Generation Builders of Bath LtdBuilders
- 86 Electrics LtdElectricians
- Rosemark Property Cleaning LtdCleaning companies
- Revon Assist Solutions LtdMotor traders
- Prentice Brothers LtdFinishing trades
- Bath Electrical & Renewables LtdElectricians
- Praedium Property Holdings LtdBuilders
What happens if Koolsystems Ltd 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 15662728
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 April 2024 (2 years ago)
- Registered office
- 23 Northampton Street, Bath, BA1 2SW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 19 April 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Bath
Other active plumbing and heating companies registered in Bath.
- Kosher Music Limited2022
- M J Griffiths Heating & Plumbing Ltd2024
- Mendip Heating & Plumbing Services Ltd2006
- Milne Plumbing & Heating Services Limited2008
- MJF Plumbing & Heating Ltd2022
- Mjsi Plumbing & Property Management Ltd2023
- Neil Greensides Limited2003
- Patina Renovations Ltd2025
All plumbing and heating companies in Bath · All trades in Bath · Plumbers and heating engineers across the UK
Frequently asked questions
When are Koolsystems Ltd's accounts due?
Koolsystems Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Koolsystems Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Koolsystems Ltd still trading?
Koolsystems Ltd 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 Koolsystems Ltd do?
Koolsystems Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Koolsystems Ltd?
Koolsystems Ltd was incorporated on 20 April 2024, 2 years ago.
What is the penalty if Koolsystems Ltd 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 Koolsystems Ltd 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.