- Companies
- Civil engineering
- Armagh
- Optifi Ltd
Optifi Ltd
- Company number
- NI679746
- Incorporated
- 2 Jun 20215 years trading
- Registered office
- 25 ST. Matthews Estate, Keady, Armagh, BT60 3SF
- Nature of business
- Construction of utility projects for electricity and telecommunications
Optifi Ltd is a 5-year-old private limited company registered in Armagh, company number NI679746, one of 31 civil engineering contractors in Armagh. 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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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 £6,209 (+3.4%) on the year before, to £187K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £74K against £25K owed within a year: 3.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £187K | £74K | £25K | 2 | |
| 31 Aug 2024 | £181K | £112K | £49K | 2 | |
| 31 Aug 2023 | £152K | £104K | £42K | 2 | |
| 31 Aug 2022 | £34K | £34K | £76K | 2 | |
| 31 Aug 2021 | £6 | £6 |
Where Optifi Ltd is registered
The registered office is in Armagh (BT60), in the Armagh City, Banbridge and Craigavon local authority area, Northern Ireland. Show BT60 3SF on a map.
Other trade companies in BT60
- Zarya Energy LtdElectricians
- Linton Electrical LtdElectricians
- SGM Development Group LimitedBuilders
- Alloy Doctor LtdMachinery repair and installation
- Vision Maintenance and Cleaning LtdCleaning companies
- Total Floor Design LtdFloor and wall tilers
- Treanor Car Sales LtdMotor traders
- SFM Plumbing LimitedPlumbers and heating engineers
What happens if Optifi 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 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
- NI679746
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2021 (5 years ago)
- Registered office
- 25 ST. Matthews Estate, Keady, Armagh, BT60 3SF
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 1 June 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Armagh
Other active civil engineering contractors registered in Armagh.
- Ray Contracts Ltd2019
- Rde Ltd2020
- SMN Contracts Ltd2013
- Strand Corner Trading Ltd2021
- Trackline Services (NI) Ltd2026
- TS Utilities Ltd2016
- Amn Civils and Construction Ltd2019
- Annvale Construction (Contracts) Ltd2025
All civil engineering contractors in Armagh · All trades in Armagh · Civil engineering across the UK
Frequently asked questions
When are Optifi Ltd's accounts due?
Optifi Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Optifi Ltd'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 Optifi Ltd still trading?
Optifi 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 Optifi Ltd do?
Optifi Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Optifi Ltd?
Optifi Ltd was incorporated on 2 June 2021, 5 years ago.
What is the penalty if Optifi 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 Optifi 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.