- Companies
- Civil engineering
- Birmingham
- Ioan C Ltd
Ioan C Ltd
- Company number
- 16470215
- Incorporated
- 23 May 20251 year trading
- Registered office
- 18 Wattisham Square, Birmingham, B35 6JL
- Nature of business
- Construction of bridges and tunnels
Ioan C Ltd is a 1-year-old private limited company registered in Birmingham, company number 16470215, one of 278 civil engineering contractors in Birmingham. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 May 2026, as filed at Companies House.
Where Ioan C Ltd is registered
The registered office is in Birmingham (B35), in the Birmingham local authority area, West Midlands. Show B35 6JL on a map.
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What happens if Ioan C 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2029 | 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
- 16470215
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 May 2025 (1 year ago)
- Registered office
- 18 Wattisham Square, Birmingham, B35 6JL
- Nature of business
- Construction of bridges and tunnels (SIC 42130)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 22 May 2026
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 Birmingham
Other active civil engineering contractors registered in Birmingham.
- Ironclad Management Ltd2026
- Isamrailengineering Ltd2023
- Ish TM Ltd2022
- Iybs Developments Limited2021
- J & A Site Services Ltd2018
- J7 Builders Ltd2017
- Jama Telecom Ltd2025
- Jed TM Services Ltd2018
All civil engineering contractors in Birmingham · All trades in Birmingham · Civil engineering across the UK
Frequently asked questions
When are Ioan C Ltd's accounts due?
Ioan C Ltd's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is Ioan C Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Ioan C Ltd still trading?
Ioan C 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 Ioan C Ltd do?
Ioan C Ltd is registered under Construction of bridges and tunnels (SIC 42130).
How old is Ioan C Ltd?
Ioan C Ltd was incorporated on 23 May 2025, 1 year ago.
What is the penalty if Ioan C 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 Ioan C 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.