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  4. GJ Systems Limited

GJ Systems Limited

ActiveNo accounts filed yet accountsSpecialist contractorsAltrincham
Company number
16837665
Incorporated
6 Nov 2025
Registered office
Mansion House, Manchester Road, Altrincham, WA14 4RW
Nature of business
Other specialised construction activities n.e.c.
Accounts due in
297 days
6 Aug 2027
From the Companies House register, 1 Oct 2026

GJ Systems Limited is a newly incorporated private limited company registered in Altrincham, company number 16837665, one of 51 specialist construction companies in Altrincham. Its next accounts are due at Companies House on 6 August 2027, and its first CT600 is due at HMRC on 5 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.

Accounts due
6 Aug 2027
in 297 days
For the period to 30 Nov 2026
CT600 due (first of two)
5 Nov 2027
in 388 days
Period 6 Nov 2025 to 5 Nov 2026
CT600 due (second of two)
30 Nov 2027
in 413 days
Period 6 Nov 2026 to 30 Nov 2026
Corporation tax payment
1 Sep 2027
in 323 days
9 months and 1 day after the period end
Confirmation statement
19 Nov 2026
in 37 days

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Where GJ Systems Limited is registered

GJ Systems Limited's registered office on a map of the UK

The registered office is in Altrincham (WA14), in the Trafford local authority area, North West. Show WA14 4RW on a map.

Other trade companies in WA14

Also registered at this address

17 other companies use the same registered office as GJ Systems Limited.

What happens if GJ Systems 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 6 August 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late7 Aug 2027 to 6 Sep 2027£150
1 to 3 months late7 Sep 2027 to 6 Nov 2027£375
3 to 6 months late7 Nov 2027 to 6 Feb 2028£750
More than 6 months lateFrom 7 Feb 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Dec 2027£200
3 months late29 Feb 2028another £200
6 months late30 May 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Nov 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
16837665
Status
Active
Company type
Private limited company
Incorporated
6 November 2025
Registered office
Mansion House, Manchester Road, Altrincham, WA14 4RW
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Year end
30 November (accounting reference date)
Accounts type
No accounts filed yet

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.

Similar companies in Altrincham

Other active specialist construction companies registered in Altrincham.

All specialist construction companies in Altrincham · All trades in Altrincham · Specialist contractors across the UK

Frequently asked questions

When are GJ Systems Limited's accounts due?

GJ Systems Limited's next accounts are due at Companies House by 6 August 2027 (in 297 days), covering the period to 30 November 2026.

When is GJ Systems 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 5 November 2026, due by 5 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 GJ Systems Limited still trading?

GJ Systems 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 GJ Systems Limited do?

GJ Systems Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).

How old is GJ Systems Limited?

GJ Systems Limited was incorporated on 6 November 2025, less than a year ago.

What is the penalty if GJ Systems 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 GJ Systems 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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