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  4. Fixen Ltd

Fixen Ltd

ActiveNo accounts filed yet accountsPlumbers and heating engineersLuton
Company number
16903498
Incorporated
11 Dec 2025
Registered office
70 Portland Road, Luton, Bedfordshire, LU4 8AY
Nature of business
Plumbing, heat and air-conditioning installation; Other construction installation; Other information technology service activities; Other activities of employment placement agencies
Accounts due in
333 days
11 Sep 2027
From the Companies House register, 1 Oct 2026

Fixen Ltd is a newly incorporated private limited company registered in Luton, company number 16903498, one of 158 plumbing and heating companies in Luton. Its next accounts are due at Companies House on 11 September 2027, and its first CT600 is due at HMRC on 10 December 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
11 Sep 2027
in 333 days
For the period to 31 Dec 2026
CT600 due (first of two)
10 Dec 2027
in 423 days
Period 11 Dec 2025 to 10 Dec 2026
CT600 due (second of two)
31 Dec 2027
in 444 days
Period 11 Dec 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 353 days
9 months and 1 day after the period end
Confirmation statement
17 Aug 2027
in 308 days
Last made up to 3 Aug 2026

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Where Fixen Ltd is registered

Fixen Ltd's registered office on a map of the UK

The registered office is in Luton (LU4), in the Luton local authority area, East of England. Show LU4 8AY on a map.

Other trade companies in LU4

Also registered at this address

3 other companies use the same registered office as Fixen Ltd.

What happens if Fixen 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 11 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late12 Sep 2027 to 11 Oct 2027£150
1 to 3 months late12 Oct 2027 to 11 Dec 2027£375
3 to 6 months late12 Dec 2027 to 11 Mar 2028£750
More than 6 months lateFrom 12 Mar 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
16903498
Status
Active
Company type
Private limited company
Incorporated
11 December 2025
Registered office
70 Portland Road, Luton, Bedfordshire, LU4 8AY
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other information technology service activities (SIC 62090)
Other activities of employment placement agencies (SIC 78109)
Year end
31 December (accounting reference date)
Accounts type
No accounts filed yet
Last confirmation statement
3 August 2026

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 Luton

Other active plumbing and heating companies registered in Luton.

All plumbing and heating companies in Luton · All trades in Luton · Plumbers and heating engineers across the UK

Frequently asked questions

When are Fixen Ltd's accounts due?

Fixen Ltd's next accounts are due at Companies House by 11 September 2027 (in 333 days), covering the period to 31 December 2026.

When is Fixen 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 10 December 2026, due by 10 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.

Is Fixen Ltd still trading?

Fixen 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 Fixen Ltd do?

Fixen Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other information technology service activities (SIC 62090); Other activities of employment placement agencies (SIC 78109).

How old is Fixen Ltd?

Fixen Ltd was incorporated on 11 December 2025, less than a year ago.

What is the penalty if Fixen 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 Fixen 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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