- Companies
- Plumbers and heating engineers
- Dorking
- Mal Biomass Ltd
Mal Biomass Ltd
- Company number
- 16855159
- Incorporated
- 14 Nov 2025
- Registered office
- Dovedale, Walliswood, Dorking, RH5 5RD
- Nature of business
- Plumbing, heat and air-conditioning installation
Mal Biomass Ltd is a newly incorporated private limited company registered in Dorking, company number 16855159, one of 19 plumbing and heating companies in Dorking. Its next accounts are due at Companies House on 14 August 2027, and its first CT600 is due at HMRC on 13 November 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Mal Biomass Ltd is registered
The registered office is in Dorking (RH5), in the Mole Valley local authority area, South East. Show RH5 5RD on a map.
Other trade companies in RH5
- MBZ Electrical LtdElectricians
- Surrey Hills Electrical LtdElectricians
- Hamilton Landscaping LtdProperty developers
- Upgraded Roofing & Guttering LtdRoofers
- Build BK LimitedProperty developers
- Dust Pilot LtdCleaning companies
- Dsi Automotive Group LimitedMotor traders
- Just About Flooring LtdFloor and wall tilers
What happens if Mal Biomass 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 14 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 Aug 2027 to 14 Sep 2027 | £150 |
| 1 to 3 months late | 15 Sep 2027 to 14 Nov 2027 | £375 |
| 3 to 6 months late | 15 Nov 2027 to 14 Feb 2028 | £750 |
| More than 6 months late | From 15 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16855159
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 November 2025
- Registered office
- Dovedale, Walliswood, Dorking, RH5 5RD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
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 Dorking
Other active plumbing and heating companies registered in Dorking.
- MJ Heating & Electrical Limited2016
- Nichols Plumbing & Heating Limited2023
- Plumb Right Boiler Services Ltd2006
- Quattropal Limited2020
- Surrey Chills Air Conditioning Ltd2026
- TDH Commissioning Ltd2019
- WTS Plumbing & Heating Limited2008
- Affinity Heating & Plumbing Limited2022
All plumbing and heating companies in Dorking · All trades in Dorking · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mal Biomass Ltd's accounts due?
Mal Biomass Ltd's next accounts are due at Companies House by 14 August 2027 (in 305 days), covering the period to 30 November 2026.
When is Mal Biomass Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 November 2026, due by 13 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mal Biomass Ltd still trading?
Mal Biomass 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 Mal Biomass Ltd do?
Mal Biomass Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mal Biomass Ltd?
Mal Biomass Ltd was incorporated on 14 November 2025, less than a year ago.
What is the penalty if Mal Biomass 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 Mal Biomass 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.