- Companies
- Specialist contractors
- South Croydon
- Ac12 Limited
Ac12 Limited
- Company number
- 10635243
- Incorporated
- 23 Feb 20179 years trading
- Registered office
- 16B Abbey Road, South Croydon, CR2 8NG
- Nature of business
- Other specialised construction activities n.e.c.
Ac12 Limited is a 9-year-old private limited company registered in South Croydon, company number 10635243, one of 34 specialist construction companies in South Croydon. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £3,887 (+44.1%) on the year before, to £13K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £13K | £15K | 0 | ||
| 30 Apr 2024 | £8,806 | £13K | 0 | ||
| 30 Apr 2023 | £8,843 | £16K | 0 | ||
| 30 Apr 2022 | £8,864 | £18K | 0 | ||
| 30 Apr 2021 | £8,176 | £18K | 0 | ||
| 28 Feb 2021 | £5,164 | £2,840 | £2,000 | 1 | |
| 28 Feb 2020 | £8,342 | £5,999 | 1 | ||
| 28 Feb 2019 | £1 | ||||
| 28 Feb 2018 | £1 |
Who runs and owns Ac12 Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** T*** | Director | Feb 2017 |
Person with significant control
Where Ac12 Limited is registered
The registered office is in South Croydon (CR2), in the Croydon local authority area, London. Show CR2 8NG on a map.
Other trade companies in CR2
- Noviolux LtdPainters and decorators
- Ottorigo LimitedInstallers
- DRJ Electricals-Gas LtdElectricians
- The New Drivers Shop LtdMotor traders
- Knoxford Plumbing & Heating LtdPlumbers and heating engineers
- Frontline Design & Build LtdBuilders
- Vellarowheels LtdMotor traders
- Lady Ace Cleaning Co LimitedCleaning companies
What happens if Ac12 Limited 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 10635243
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2017 (9 years ago)
- Registered office
- 16B Abbey Road, South Croydon, CR2 8NG
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 22 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 South Croydon
Other active specialist construction companies registered in South Croydon.
- Acs Contracting Ltd2019
- B P Flooring Ltd2009
- Beechwood Building Ltd2025
- Bespoke Paving Services Ltd2021
- Clear Estate Services Ltd.2026
- Dulwich Building Co Ltd2024
- Dyn Construction Ltd2025
- Fine Spec Ltd2024
All specialist construction companies in South Croydon · All trades in South Croydon · Specialist contractors across the UK
Frequently asked questions
When are Ac12 Limited's accounts due?
Ac12 Limited's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Ac12 Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Ac12 Limited still trading?
Ac12 Limited 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 Ac12 Limited do?
Ac12 Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Ac12 Limited?
Ac12 Limited was incorporated on 23 February 2017, 9 years ago.
Who runs Ac12 Limited?
Ac12 Limited has 1 active director, the longest-serving appointed in Feb 2017. Their names and service addresses are on the Companies House register.
Who owns Ac12 Limited?
One person or company has significant control of Ac12 Limited: an individual (owns 75% or more of the shares).
What is the penalty if Ac12 Limited 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 Ac12 Limited 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.