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- As Systems Limited
Company profile · Electricians
As Systems Limited
As Systems Limited is a 2-year-old private limited company registered in Belfast, company number NI720347, one of 126 electrical contractors in Belfast. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Where As Systems Limited is registered
The registered office is in Belfast (BT6), in the Belfast local authority area, Northern Ireland. Show BT6 0AE on a map.
Other trade companies in BT6
- Aviation Tech LtdMachinery repair and installation
- P & P Property Solutions LtdFacilities management
- A and R Kitchens LtdInstallers
- ST. Patrick Auto Wash LtdMechanics and garages
- KJM Cleaning Services LtdCleaning companies
- Auto Apex Servicing and Repairs LtdMechanics and garages
- JD Constructions & Patios LtdLandscapers and gardeners
- Belfast Commercial Cleaning LtdCleaning companies
What happens if As 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- NI720347
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 August 2024 (2 years ago)
- Registered office
- 144 Ardenlee Avenue, Belfast, BT6 0AE
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 26 August 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 Belfast
Other active electrical contractors registered in Belfast.
- Atx Property Services Ltd2025
- Aw Film Services Ltd2023
- Bann Power Limited2018
- BD Solar Solutions Limited2022
- Belfast Electrical Ltd2026
- Blinc Electrical Limited2023
- Boyd Electrical Contractors Ltd2026
- Brendan O Hare Electrical Ltd2024
All electrical contractors in Belfast · All trades in Belfast · Electricians across the UK
Frequently asked questions
When are As Systems Limited's accounts due?
As Systems Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is As Systems Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is As Systems Limited still trading?
As 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 As Systems Limited do?
As Systems Limited is registered under Electrical installation (SIC 43210).
How old is As Systems Limited?
As Systems Limited was incorporated on 27 August 2024, 2 years ago.
What is the penalty if As 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 As Systems 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.