PricingHow It WorksWebsites
CT600 FilingCompanies House AccountsCompany Deadlines LookupWhat You Need to FileSelf AssessmentCIS ReturnsMaking Tax DigitalFree Tax Calculators
YappazineFree Tax CalculatorsHelp CentreFAQSupportOur Infrastructure
Jobs & leadsStripeMeta Lead AdsWhatsApp AITelegram
Tax filingHMRC (MTD)
Works with bothXeroQuickBooks
AboutPartner APIContactSecurityPrivacy PolicyTerms of Service
  1. Companies
  2. Electricians
  3. London
  4. Cetra Systems Limited

Company profile · Electricians

Cetra Systems Limited

Cetra Systems Limited is a newly incorporated private limited company registered in London, company number 17351332, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 21 April 2028, and its first CT600 is due at HMRC on 20 July 2028.

Active 17351332 No accounts filed yet accounts London Since 2026

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
21 Apr 2028
in 557 days
For the period to 31 Aug 2027
CT600 due (first of two)
20 Jul 2028
in 647 days
Period 21 Jul 2026 to 20 Jul 2027
CT600 due (second of two)
31 Aug 2028
in 689 days
Period 21 Jul 2027 to 31 Aug 2027
Corporation tax payment
1 Jun 2028
in 598 days
9 months and 1 day after the period end
Confirmation statement
3 Aug 2027
in 295 days

Is this your company?

File the first 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 Cetra Systems Limited

Or 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.

Where Cetra Systems Limited is registered

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

The registered office is in London (EC2A), in the Hackney local authority area, London. Show EC2A 3BS on a map.

Other trade companies in EC2A

Also registered at this address

20 other companies use the same registered office as Cetra Systems Limited.

What happens if Cetra 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 21 April 2028.

Companies HouseAccounts deliveredPenalty
Up to 1 month late22 Apr 2028 to 21 May 2028£150
1 to 3 months late22 May 2028 to 21 Jul 2028£375
3 to 6 months late22 Jul 2028 to 21 Oct 2028£750
More than 6 months lateFrom 22 Oct 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Sep 2028£200
3 months late30 Nov 2028another £200
6 months late28 Feb 2029HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Aug 2029another 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
17351332
Status
Active
Company type
Private limited company
Incorporated
21 July 2026
Registered office
1ST Floor Cordy House, 87-95 Curtain Road, London, EC2A 3BS
Nature of business
Electrical installation (SIC 43210)
Year end
31 August (accounting reference date)
Accounts type
No accounts filed yet
Previous names
Cetra Dynamics Limited (until 21 Aug 2026)

Filing notes for electrical contractors

Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.

Similar companies in London

Other active electrical contractors registered in London.

All electrical contractors in London · All trades in London · Electricians across the UK

Frequently asked questions

When are Cetra Systems Limited's accounts due?

Cetra Systems Limited's next accounts are due at Companies House by 21 April 2028 (in 557 days), covering the period to 31 August 2027.

When is Cetra 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 20 July 2027, due by 20 July 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is Cetra Systems Limited still trading?

Cetra 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 Cetra Systems Limited do?

Cetra Systems Limited is registered under Electrical installation (SIC 43210).

How old is Cetra Systems Limited?

Cetra Systems Limited was incorporated on 21 July 2026, less than a year ago.

What is the penalty if Cetra 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 Cetra 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.

File accounts + CT600File now£49Let's talk