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  4. Marsk Group Limited

Marsk Group Limited

ActiveTotal exemption (full) accountsCleaning companiesBorehamwood
Company number
12942763
Incorporated
12 Oct 20206 years trading
Registered office
5 Theobald Court, Theobald Street, Borehamwood, Herts, WD6 4RN
Nature of business
General cleaning of buildings
Accounts due in
18 days
31 Oct 2026
Net assets
£49K▲
+229.6% on the year before
Cash at bank
£9,925▲
At 31 Oct 2024
Employees
1
Average during the year
From the Companies House register, 1 Oct 2026

Marsk Group Limited is a 6-year-old private limited company registered in Borehamwood, company number 12942763, one of 33 cleaning companies in Borehamwood. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Oct 2026
in 18 days
For the period to 31 Jan 2026
CT600 due (first of two)
31 Oct 2026
in 18 days
Period 1 Nov 2024 to 31 Oct 2025
CT600 due (second of two)
31 Jan 2027
in 110 days
Period 1 Nov 2025 to 31 Jan 2026
Corporation tax payment
1 Nov 2026
in 19 days
9 months and 1 day after the period end
Confirmation statement
25 Oct 2026
in 12 days
Last made up to 11 Oct 2025

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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 up £34K (+229.6%) on the year before, to £49K.
  • Net assets rose in 3 of 3 year-on-year comparisons on record.
  • Current assets of £231K against £184K owed within a year: 1.3 times cover.
  • 1 employee on average during the year.
  • Balance sheets on record for 4 years, 2021 to 2024.

Net assets by year

Net assets at each year end, 2021 to 2024£0£20K£40K31 October 2021: net assets £100£100202131 October 2022: net assets £230£230202231 October 2023: net assets £15K£15K202331 October 2024: net assets £49K£49K2024
Net assets at each year end, 2021 to 2024£0£20K£40K31 October 2021: net assets £100£100202131 October 2022: net assets £230£230202231 October 2023: net assets £15K£15K202331 October 2024: net assets £49K£49K2024
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Oct 2024£49K£9,925£231K£184K1
31 Oct 2023£15K£4,481£83K£68K1
31 Oct 2022£230£4£3,350£3,1201
31 Oct 2021£100£1000

Who runs and owns Marsk Group Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officer

NameRoleAppointed
D*** M***DirectorApr 2024
1 former officer
NameRoleAppointedLeft
D*** M***DirectorOct 2020Oct 2024

Person with significant control

Individual · since Apr 2024
D*** M***
Owns 75% or more of the shares
Holds 75% or more of the votes
Can appoint and remove directors

Where Marsk Group Limited is registered

Marsk Group Limited's registered office on a map of the UK

The registered office is in Borehamwood (WD6), in the Hertsmere local authority area, East of England. Show WD6 4RN on a map.

Other trade companies in WD6

Also registered at this address

11 other companies use the same registered office as Marsk Group Limited.

What happens if Marsk Group 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 October 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Nov 2026 to 30 Nov 2026£150
1 to 3 months late1 Dec 2026 to 31 Jan 2027£375
3 to 6 months late1 Feb 2027 to 30 Apr 2027£750
More than 6 months lateFrom 1 May 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Feb 2027£200
3 months late30 Apr 2027another £200
6 months late31 Jul 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 2028another 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
12942763
Status
Active
Company type
Private limited company
Incorporated
12 October 2020 (6 years ago)
Registered office
5 Theobald Court, Theobald Street, Borehamwood, Herts, WD6 4RN
Nature of business
General cleaning of buildings (SIC 81210)
Year end
31 October (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 October 2024
Last confirmation statement
11 October 2025
Previous names
S A Shine Limited (until 15 Aug 2023)

Filing notes for cleaning companies

Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.

Similar companies in Borehamwood

Other active cleaning companies registered in Borehamwood.

All cleaning companies in Borehamwood · All trades in Borehamwood · Cleaning companies across the UK

Frequently asked questions

When are Marsk Group Limited's accounts due?

Marsk Group Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.

When is Marsk Group Limited's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.

Is Marsk Group Limited still trading?

Marsk Group 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 Marsk Group Limited do?

Marsk Group Limited is registered under General cleaning of buildings (SIC 81210).

How old is Marsk Group Limited?

Marsk Group Limited was incorporated on 12 October 2020, 6 years ago.

Who runs Marsk Group Limited?

Marsk Group Limited has 1 active director, the longest-serving appointed in Apr 2024. Their names and service addresses are on the Companies House register.

Who owns Marsk Group Limited?

One person or company has significant control of Marsk Group Limited: an individual (owns 75% or more of the shares).

What is the penalty if Marsk Group 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 Marsk Group Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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