- Companies
- Civil engineering
- Oban
- Kmass Marine Limited
Kmass Marine Limited
- Company number
- SC648102
- Incorporated
- 26 Nov 20196 years trading
- Registered office
- 5 Davaar Gardens, Oban, Argyll, PA34 4HD
- Nature of business
- Construction of other civil engineering projects n.e.c.
Kmass Marine Limited is a 6-year-old private limited company registered in Oban, company number SC648102, one of 17 civil engineering contractors in Oban. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Kmass Marine LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £5,494 (-2.4%) on the year before, to £225K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £91K against £75K owed within a year: 1.2 times cover.
- 6 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £225K | £35K | £91K | £75K | 6 |
| 30 Nov 2024 | £231K | £59K | £136K | £72K | 6 |
| 30 Nov 2023 | £260K | £102K | £117K | £38K | 1 |
| 30 Nov 2022 | £268K | £71K | £158K | £52K | 1 |
| 30 Nov 2021 | £99K | £55K | £66K | £77K | 2 |
| 30 Nov 2020 | -£5,833 | £5,751 | £7,187 | £56K | 2 |
Where Kmass Marine Limited is registered
The registered office is in Oban (PA34), in the Argyll and Bute local authority area, Scotland. Show PA34 4HD on a map.
Other trade companies in PA34
- Tidy Raccoons LtdMechanics and garages
- A&B Automotive LtdMechanics and garages
- Pure Clean Laundry LtdCleaning companies
- Clarity Services Oban LtdProperty developers
- West Coast Autoworks LimitedMechanics and garages
- Kerrera Marine Services LimitedMachinery repair and installation
- Sas Auto Services (Scotland) LtdMechanics and garages
- Aurora Rising Collective LtdProperty developers
What happens if Kmass Marine 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 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
- SC648102
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 November 2019 (6 years ago)
- Registered office
- 5 Davaar Gardens, Oban, Argyll, PA34 4HD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 1 November 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Oban
Other active civil engineering contractors registered in Oban.
- Maccoll (Appin) Ltd2012
- McLaren Plant and Contracting Ltd2022
- McVicar Contractors Limited2018
- N R Plant and Contracting Ltd2024
- S E Carmichael Limited2005
- Seator Groundworks Limited2025
- Seawork (Scotland) Limited1988
- Sinclair Plant Limited2021
All civil engineering contractors in Oban · All trades in Oban · Civil engineering across the UK
Frequently asked questions
When are Kmass Marine Limited's accounts due?
Kmass Marine Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Kmass Marine Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Kmass Marine Limited still trading?
Kmass Marine 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 Kmass Marine Limited do?
Kmass Marine Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Kmass Marine Limited?
Kmass Marine Limited was incorporated on 26 November 2019, 6 years ago.
What is the penalty if Kmass Marine 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 Kmass Marine 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.