- Companies
- Specialist contractors
- Craigavon
- Not One Iota Ltd
Not One Iota Ltd
- Company number
- NI619197
- Incorporated
- 3 Jul 201313 years trading
- Registered office
- 10 Tandragee Road, Portadown, Craigavon, BT62 3BQ
- Nature of business
- Other specialised construction activities n.e.c.
Not One Iota Ltd is a 13-year-old private limited company registered in Craigavon, company number NI619197, one of 27 specialist construction companies in Craigavon. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Not One Iota LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £9,485 (-6.7%) on the year before, to -£152K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £527K against £529K owed within a year: 1.0 times cover.
- 14 employees on average, down from 18 the year before.
- 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 | -£152K | £3,363 | £527K | £529K | 14 |
| 31 Mar 2024 | -£143K | £126K | £630K | £663K | 18 |
| 31 Mar 2023 | -£89K | £52K | £529K | £509K | 20 |
| 31 Mar 2022 | -£29K | £34K | £593K | £508K | 20 |
| 31 Mar 2021 | -£17K | £83K | £594K | £432K | 22 |
| 31 Mar 2020 | -£23K | £75K | £725K | £573K | 22 |
| 31 Mar 2019 | -£7,652 | £19K | £322K | £393K | 16 |
| 31 Mar 2018 | £11K | £35K | £206K | £138K | 12 |
| 31 Mar 2017 | -£11K | £23K | £132K | £84K | 6 |
| 31 Mar 2016 | -£23K | £4,508 | £38K |
Public contracts won
Not One Iota Ltd has one public sector contract award on record; the ones with their own published value total £3.6M (2025). Source: Contracts Finder and Find a Tender award notices.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Northern Ireland Housing Executive | P-0408 Asbestos Surveying and associated services | £3.6M | 21 Nov 2025 |
Where Not One Iota Ltd is registered
The registered office is in Craigavon (BT62), in the Armagh City, Banbridge and Craigavon local authority area, Northern Ireland. Show BT62 3BQ on a map.
Other trade companies in BT62
- Ber Plumbing & Heating LtdPlumbers and heating engineers
- JHT Ballyearl LimitedProperty developers
- Eco Groundworx LtdBuilders
- The Commercial Repair Centre LtdMechanics and garages
- P. Stewart Joinery LtdJoiners and carpenters
- Jak Motorcycle Repairs LtdMotor traders
- Autobahn Specialist Cars LtdMotor traders
- RPF Building & Joinery LtdJoiners and carpenters
What happens if Not One Iota 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 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 | 1 Apr 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 | 31 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
- NI619197
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2013 (13 years ago)
- Registered office
- 10 Tandragee Road, Portadown, Craigavon, BT62 3BQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 July 2026
- Charges (mortgages)
- 2 outstanding of 4 registered
- Previous names
- Asbestos Control Services (Acs) Ltd (until 20 Jun 2018)
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Craigavon
Other active specialist construction companies registered in Craigavon.
- Pal Surveying Ltd2018
- R.Macmaintenance Ltd2026
- Robert Rush Limited2014
- Rockcastle Management Ltd2023
- SBM Contracts Limited2019
- Soh Construction Forces Ltd2025
- Watson Contracts Ltd2014
- Willis Property Services Ltd2025
All specialist construction companies in Craigavon · All trades in Craigavon · Specialist contractors across the UK
Frequently asked questions
When are Not One Iota Ltd's accounts due?
Not One Iota Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Not One Iota Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Not One Iota Ltd still trading?
Not One Iota 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 Not One Iota Ltd do?
Not One Iota Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Not One Iota Ltd?
Not One Iota Ltd was incorporated on 3 July 2013, 13 years ago.
Has Not One Iota Ltd won public sector contracts?
Yes. Not One Iota Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £3.6M), most recently from Northern Ireland Housing Executive.
What is the penalty if Not One Iota 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 Not One Iota 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.