- Companies
- Electricians
- Southsea
- Coresafe Systems Ltd
Coresafe Systems Ltd
- Company number
- 17123324
- Incorporated
- 29 Mar 2026
- Registered office
- 46 Esslemont Road, Southsea, PO4 0ET
- Nature of business
- Electrical installation
Coresafe Systems Ltd is a newly incorporated private limited company registered in Southsea, company number 17123324, one of 30 electrical contractors in Southsea. Its next accounts are due at Companies House on 29 December 2027, and its first CT600 is due at HMRC on 28 March 2028.
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.
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Where Coresafe Systems Ltd is registered
The registered office is in Southsea (PO4), in the Portsmouth local authority area, South East. Show PO4 0ET on a map.
Other trade companies in PO4
- Prestiige LtdMechanics and garages
- Portsea Homes LimitedProperty developers
- Elite Building Services (Portsmouth) LtdBuilders
- G Form Drylining LimitedPlasterers
- Solent Sales Haulage & Storage LtdMotor traders
- Koko Construction LtdBuilders
- Chase RCS LtdCivil engineering
- Proper Job Handyman LtdFinishing trades
What happens if Coresafe Systems 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 29 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2027 to 29 Jan 2028 | £150 |
| 1 to 3 months late | 30 Jan 2028 to 29 Mar 2028 | £375 |
| 3 to 6 months late | 30 Mar 2028 to 29 Jun 2028 | £750 |
| More than 6 months late | From 30 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 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
- 17123324
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2026
- Registered office
- 46 Esslemont Road, Southsea, PO4 0ET
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
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 Southsea
Other active electrical contractors registered in Southsea.
- Dean Carter Electrical Limited1999
- E4Commercial Electrics Limited2015
- Electricity & Plumbing Services Ltd2022
- Hampshire Electrical Ltd2015
- Humphries Murphy Electrical Services Ltd2023
- Ice BT Ltd2006
- JB Audio and Visual Limited2023
- John Barber Electrical Limited2007
All electrical contractors in Southsea · All trades in Southsea · Electricians across the UK
Frequently asked questions
When are Coresafe Systems Ltd's accounts due?
Coresafe Systems Ltd's next accounts are due at Companies House by 29 December 2027 (in 442 days), covering the period to 31 March 2027.
When is Coresafe Systems 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 28 March 2027, due by 28 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Coresafe Systems Ltd still trading?
Coresafe Systems 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 Coresafe Systems Ltd do?
Coresafe Systems Ltd is registered under Electrical installation (SIC 43210).
How old is Coresafe Systems Ltd?
Coresafe Systems Ltd was incorporated on 29 March 2026, less than a year ago.
What is the penalty if Coresafe Systems 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 Coresafe Systems Ltd on Companies House for filed documents, officers and the full history.
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.