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  4. Arm Group Ltd

Arm Group Ltd

ActiveNo accounts filed yet accountsSpecialist contractorsRuislip
Company number
16247175
Incorporated
12 Feb 20251 year trading
Registered office
Suite 64 Rye House, 161 Hight Street, Ruislip, Middlesex, HA4 8JY
Nature of business
Other specialised construction activities n.e.c.
Accounts due in
31 days
12 Nov 2026
From the Companies House register, 1 Oct 2026

Arm Group Ltd is a 1-year-old private limited company registered in Ruislip, company number 16247175, one of 107 specialist construction companies in Ruislip. Its next accounts are due at Companies House on 12 November 2026, and its first CT600 is due at HMRC on 11 February 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.

Accounts due
12 Nov 2026
in 31 days
For the period to 28 Feb 2026
CT600 due (first of two)
11 Feb 2027
in 122 days
Period 12 Feb 2025 to 11 Feb 2026
CT600 due (second of two)
28 Feb 2027
in 139 days
Period 12 Feb 2026 to 28 Feb 2026
Corporation tax payment
1 Dec 2026
in 50 days
9 months and 1 day after the period end
Confirmation statement
25 Feb 2027
in 136 days
Last made up to 11 Feb 2026

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Where Arm Group Ltd is registered

Arm Group Ltd's registered office on a map of the UK

The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 8JY on a map.

Other trade companies in HA4

What happens if Arm Group 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 12 November 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late13 Nov 2026 to 12 Dec 2026£150
1 to 3 months late13 Dec 2026 to 12 Feb 2027£375
3 to 6 months late13 Feb 2027 to 12 May 2027£750
More than 6 months lateFrom 13 May 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Mar 2027£200
3 months late28 May 2027another £200
6 months late28 Aug 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late28 Feb 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
16247175
Status
Active
Company type
Private limited company
Incorporated
12 February 2025 (1 year ago)
Registered office
Suite 64 Rye House, 161 Hight Street, Ruislip, Middlesex, HA4 8JY
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Year end
28 February (accounting reference date)
Accounts type
No accounts filed yet
Last confirmation statement
11 February 2026
Previous names
Build Passiv Ltd (until 15 Apr 2026)

Filing notes for specialist construction companies

Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.

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Frequently asked questions

When are Arm Group Ltd's accounts due?

Arm Group Ltd's next accounts are due at Companies House by 12 November 2026 (in 31 days), covering the period to 28 February 2026.

When is Arm Group 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 11 February 2026, due by 11 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.

Is Arm Group Ltd still trading?

Arm Group 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 Arm Group Ltd do?

Arm Group Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).

How old is Arm Group Ltd?

Arm Group Ltd was incorporated on 12 February 2025, 1 year ago.

What is the penalty if Arm Group 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 Arm Group Ltd 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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