- Companies
- Electricians
- Belfast
- Derek Millar Electrical Limited
Derek Millar Electrical Limited
- Company number
- NI606838
- Incorporated
- 29 Mar 201115 years trading
- Registered office
- c/o DNT Chartered Accountants, Ormeau House, 91-97 Ormeau Road, Belfast, County Antrim, BT7 1SH
- Nature of business
- Electrical installation
Derek Millar Electrical Limited is a 15-year-old private limited company registered in Belfast, company number NI606838, one of 126 electrical contractors in Belfast. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £22K (+38.5%) on the year before, to £78K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £89K against £30K owed within a year: 2.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £78K | £89K | £30K | 1 | |
| 31 Mar 2024 | £56K | £70K | £30K | 1 | |
| 31 Mar 2023 | £43K | £39K | £18K | 1 | |
| 31 Mar 2022 | £51K | £41K | £19K | 1 | |
| 31 Mar 2021 | £59K | £86K | £51K | 1 | |
| 31 Mar 2020 | £55K | £56K | £33K | 1 | |
| 31 Mar 2019 | -£27K | -£61K | £38K | ||
| 31 Mar 2018 | £21K | £60K | £63K | £60K | 1 |
| 31 Mar 2017 | -£249 | £67K | £70K | ||
| 31 Mar 2016 | -£2,060 | £47K | £49K |
Where Derek Millar Electrical Limited is registered
The registered office is in Belfast (BT7), in the Belfast local authority area, Northern Ireland. Show BT7 1SH on a map.
Other trade companies in BT7
- MR Vape48 LtdMotor traders
- House and Home NI LtdInstallers
- Vireon Commercial Hygiene LtdCleaning companies
- Forge Cleaning LtdCleaning companies
- Mar G Cleaning Services LimitedCleaning companies
- Stormguardianroofs NI LtdRoofers
- Bury Glass LtdGlaziers
- GDL Drylining Contracts LimitedBuilders
Also registered at this address
8 other companies use the same registered office as Derek Millar Electrical Limited.
- Botanic Development Company LtdProperty developers
- C & G Developments LimitedProperty developers
- Galtec Engineering LimitedBuilders
- Lakeland Properties (NI) LimitedBuilders
- Moonshadow LimitedElectricians
- P B Proctor Electrical LimitedElectricians
- RWC Contracts LtdBuilders
- Transport Supplies (N.I.) LimitedMotor traders
What happens if Derek Millar Electrical 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 30 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Mar 2028 | 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
- NI606838
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2011 (15 years ago)
- Registered office
- c/o DNT Chartered Accountants, Ormeau House, 91-97 Ormeau Road, Belfast, County Antrim, BT7 1SH
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 29 March 2026
- Previous names
- TFFF Limited (until 26 Apr 2011)
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 Belfast
Other active electrical contractors registered in Belfast.
- Design Electrical & Energy Services Limited2017
- DF Electrical Group Ltd2026
- Dugan Electrical Services Limited2010
- Ecosparkni Limited2021
- Edward Pearce Electrical Services Limited2017
- Electrical Installation Specialists Ltd2024
- Electrician Local NI Ltd2025
- Electro Rayma UK Limited2025
All electrical contractors in Belfast · All trades in Belfast · Electricians across the UK
Frequently asked questions
When are Derek Millar Electrical Limited's accounts due?
Derek Millar Electrical Limited's next accounts are due at Companies House by 30 December 2026 (in 79 days), covering the period to 30 March 2026.
When is Derek Millar Electrical Limited's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Derek Millar Electrical Limited still trading?
Derek Millar Electrical 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 Derek Millar Electrical Limited do?
Derek Millar Electrical Limited is registered under Electrical installation (SIC 43210).
How old is Derek Millar Electrical Limited?
Derek Millar Electrical Limited was incorporated on 29 March 2011, 15 years ago.
What is the penalty if Derek Millar Electrical 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 Derek Millar Electrical Limited 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.