- Companies
- Specialist contractors
- Derby
- Aai Improvements Ltd
Aai Improvements Ltd
- Company number
- 14720773
- Incorporated
- 10 Mar 20233 years trading
- Registered office
- 43 the Ridings, Ockbrook, Derby, DE72 3SF
- Nature of business
- Other specialised construction activities n.e.c.
Aai Improvements Ltd is a 3-year-old private limited company registered in Derby, company number 14720773, one of 161 specialist construction companies in Derby. 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.
- Current assets of £29K against £33K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £785 | £29K | £33K | 1 | |
| 31 Mar 2024 | £16K | £18K | 1 |
Where Aai Improvements Ltd is registered
The registered office is in Derby (DE72), in the Erewash local authority area, East Midlands. Show DE72 3SF on a map.
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- Elite Dry Ice Blasting & Automotive LtdMechanics and garages
- Green 4 Building Technologies LimitedProperty developers
- Yule Civil LtdSpecialist contractors
- Dale Brook Electrics LtdElectricians
- S&J Bella Cleaning Services LimitedCleaning companies
- Traditional Touch Window Cleaning LtdCleaning companies
- Em Property Services (East Midlands) LtdCleaning companies
What happens if Aai Improvements 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
- 14720773
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 March 2023 (3 years ago)
- Registered office
- 43 the Ridings, Ockbrook, Derby, DE72 3SF
- 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
- 9 March 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 Derby
Other active specialist construction companies registered in Derby.
- Abbeystone Paving Limited2018
- Adn Sealants Limited2021
- Advanced Pipe Inspection (UK) Ltd2009
- Ag Building & Fencing Ltd2014
- Ahl Property Services Limited2023
- Aie Painting and Decorating Limited2016
- Ajb Rail Limited2014
- Allestree Groundworks Limited2008
All specialist construction companies in Derby · All trades in Derby · Specialist contractors across the UK
Frequently asked questions
When are Aai Improvements Ltd's accounts due?
Aai Improvements 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 Aai Improvements 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 Aai Improvements Ltd still trading?
Aai Improvements 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 Aai Improvements Ltd do?
Aai Improvements Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Aai Improvements Ltd?
Aai Improvements Ltd was incorporated on 10 March 2023, 3 years ago.
What is the penalty if Aai Improvements 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 Aai Improvements 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.