- Companies
- Specialist contractors
- Belfast
- Aup Asset Ltd
Aup Asset Ltd
- Company number
- NI636744
- Incorporated
- 29 Feb 201610 years trading
- Registered office
- 29 William Alexander Park, Belfast, BT10 0LX
- Nature of business
- Other specialised construction activities n.e.c.
Aup Asset Ltd is a 10-year-old private limited company registered in Belfast, company number NI636744, one of 110 specialist construction companies in Belfast. 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.
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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 unchanged on the year before, at -£1,898.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £32K against £34K owed within a year: 0.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£1,898 | £32K | £34K | 0 | |
| 31 Mar 2024 | -£1,898 | £32K | £34K | 0 | |
| 31 Mar 2023 | £1,898 | £32K | 0 | ||
| 28 Feb 2022 | £1,827 | £35K | 0 | ||
| 28 Feb 2021 | £1,519 | £37K | 0 | ||
| 29 Feb 2020 | -£1,519 | £0 | £1,519 | 1 | |
| 28 Feb 2019 | £8,290 | £24K | £15K | 1 | |
| 28 Feb 2018 | £9,559 | £16K | £14K | 1 | |
| 28 Feb 2017 | £12K | £3,132 | £30K | £20K |
Where Aup Asset Ltd is registered
The registered office is in Belfast (BT10), in the Belfast local authority area, Northern Ireland. Show BT10 0LX on a map.
Other trade companies in BT10
- Fitzsimons Engineering Services LimitedMachinery repair and installation
- Kennedy Solutions LtdMechanics and garages
- Luxcare Autos LtdMechanics and garages
- Fast House Brickworks LtdSpecialist contractors
- MS Autopoint LtdMotor traders
- Torsney Plant Hire LtdSpecialist contractors
- T&S (Belfast) LimitedCleaning companies
- LMB Utilities LtdCivil engineering
What happens if Aup Asset 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
- NI636744
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 February 2016 (10 years ago)
- Registered office
- 29 William Alexander Park, Belfast, BT10 0LX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 13 February 2026
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 Belfast
Other active specialist construction companies registered in Belfast.
- B-Mac Communications Ltd2014
- Bannview Construction Ltd2026
- Bay View Developments ( Ire) Limited2025
- BCL Industrial Concrete Floors Limited2014
- Beechfield Insulation Ltd2025
- Belfast Garden Rooms Ltd2023
- Belfast Paving Ltd2026
- Bentonz Ltd2024
All specialist construction companies in Belfast · All trades in Belfast · Specialist contractors across the UK
Frequently asked questions
When are Aup Asset Ltd's accounts due?
Aup Asset 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 Aup Asset 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 Aup Asset Ltd still trading?
Aup Asset 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 Aup Asset Ltd do?
Aup Asset Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Aup Asset Ltd?
Aup Asset Ltd was incorporated on 29 February 2016, 10 years ago.
What is the penalty if Aup Asset 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 Aup Asset 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.