- Companies
- Electricians
- Lisburn
- Solarmix Ltd
Solarmix Ltd
- Company number
- NI738691
- Incorporated
- 11 Mar 2026
- Registered office
- 15 Sepon Park, Lisburn, BT28 3BQ
- Nature of business
- Electrical installation
Solarmix Ltd is a newly incorporated private limited company registered in Lisburn, company number NI738691, one of 27 electrical contractors in Lisburn. Its next accounts are due at Companies House on 11 December 2027, and its first CT600 is due at HMRC on 10 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.
Is this your company?
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Where Solarmix Ltd is registered
The registered office is in Lisburn (BT28), in the Lisburn and Castlereagh local authority area, Northern Ireland. Show BT28 3BQ on a map.
Other trade companies in BT28
- Lisburn Autohub LtdMotor traders
- Ultralift Facilities Management LtdFacilities management
- Ultimate Tinting Lisburn LtdMotor traders
- A H Assist Cars LtdMotor traders
- Northpeak Developments LtdProperty developers
- Built by D Design and Build LtdProperty developers
- Lagan to Liffey Electrical Contractors LtdElectricians
- Ez Trade Solutions LtdJoiners and carpenters
What happens if Solarmix 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Dec 2027 to 11 Jan 2028 | £150 |
| 1 to 3 months late | 12 Jan 2028 to 11 Mar 2028 | £375 |
| 3 to 6 months late | 12 Mar 2028 to 11 Jun 2028 | £750 |
| More than 6 months late | From 12 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
- NI738691
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2026
- Registered office
- 15 Sepon Park, Lisburn, BT28 3BQ
- 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 Lisburn
Other active electrical contractors registered in Lisburn.
- Stephen McElhinny Electrical Ltd2026
- TDH Electrical NI Limited2024
- The Light Guys Ltd2020
- Williamson Electrical Ltd2003
- A C Electrics N.I. Ltd2025
- Alpha Automation Limited2015
- Andrew Markey Ltd2023
- Atg Electrical Ltd2023
All electrical contractors in Lisburn · All trades in Lisburn · Electricians across the UK
Frequently asked questions
When are Solarmix Ltd's accounts due?
Solarmix Ltd's next accounts are due at Companies House by 11 December 2027 (in 425 days), covering the period to 31 March 2027.
When is Solarmix 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 March 2027, due by 10 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 Solarmix Ltd still trading?
Solarmix 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 Solarmix Ltd do?
Solarmix Ltd is registered under Electrical installation (SIC 43210).
How old is Solarmix Ltd?
Solarmix Ltd was incorporated on 11 March 2026, less than a year ago.
What is the penalty if Solarmix 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 Solarmix 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.