- Companies
- Civil engineering
- Castlewellan
- Ab Quinn Holdings Ltd
Ab Quinn Holdings Ltd
- Company number
- NI691538
- Incorporated
- 3 Oct 20224 years trading
- Registered office
- 37 Aghlisnafin Road, Castlewellan, BT31 9JR
- Nature of business
- Construction of other civil engineering projects n.e.c.
Ab Quinn Holdings Ltd is a 4-year-old private limited company registered in Castlewellan, company number NI691538, one of 7 civil engineering contractors in Castlewellan. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 Ab Quinn Holdings 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 £26K on the year before, to -£26K.
- Current assets of £155K against £105K owed within a year: 1.5 times cover.
- 6 employees on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£26K | £155K | £105K | 6 | |
| 31 Oct 2024 | £2 | ||||
| 31 Oct 2023 | £0 |
Where Ab Quinn Holdings Ltd is registered
The registered office is in Castlewellan (BT31), in the Newry, Mourne and Down local authority area, Northern Ireland. Show BT31 9JR on a map.
Other trade companies in BT31
- Ogm26 LtdGroundworks and demolition
- Treadline Tyre & Auto Services LtdMechanics and garages
- CB Fire Compliance LimitedSpecialist contractors
- Cea Joinery LtdJoiners and carpenters
- NI.CBR LtdMechanics and garages
- S.D.E Electrical Systems LtdElectricians
- Jam Civils & Utilities LtdGroundworks and demolition
- B McVeigh Mechanical LtdPlumbers and heating engineers
What happens if Ab Quinn Holdings 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- NI691538
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 October 2022 (4 years ago)
- Registered office
- 37 Aghlisnafin Road, Castlewellan, BT31 9JR
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 2 October 2025
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 Castlewellan
Other active civil engineering contractors registered in Castlewellan.
- Glenview Contracts Ltd2024
- Knox Engineering Ltd2019
- MS Contracts (NI) Limited2005
- Northpoint Hire Ltd2025
- Nuline Utilities Ltd2018
- Paul Cunningham Contracts Ltd2016
All civil engineering contractors in Castlewellan · All trades in Castlewellan · Civil engineering across the UK
Frequently asked questions
When are Ab Quinn Holdings Ltd's accounts due?
Ab Quinn Holdings Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Ab Quinn Holdings Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Ab Quinn Holdings Ltd still trading?
Ab Quinn Holdings 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 Ab Quinn Holdings Ltd do?
Ab Quinn Holdings Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Ab Quinn Holdings Ltd?
Ab Quinn Holdings Ltd was incorporated on 3 October 2022, 4 years ago.
What is the penalty if Ab Quinn Holdings 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 Ab Quinn Holdings 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.