- Companies
- Civil engineering
- Basildon
- O&A Consulting Limited
O&A Consulting Limited
- Company number
- 16434831
- Incorporated
- 7 May 20251 year trading
- Registered office
- 125 Elizabeth Way, Basildon, SS15 5FL
- Nature of business
- Construction of other civil engineering projects n.e.c.
O&A Consulting Limited is a 1-year-old private limited company registered in Basildon, company number 16434831, one of 78 civil engineering contractors in Basildon. 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 O&A Consulting Limited is registered
The registered office is in Basildon (SS15), in the Basildon local authority area, East of England. Show SS15 5FL on a map.
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What happens if O&A Consulting 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 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
- 16434831
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 May 2025 (1 year ago)
- Registered office
- 125 Elizabeth Way, Basildon, SS15 5FL
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 6 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 Basildon
Other active civil engineering contractors registered in Basildon.
- Overhead Catenary System Installation Limited2016
- P B Pipework Limited2022
- P W Construction (Essex) Limited2012
- Pinnacle Traffic Management Limited2023
- Postie Traffic Management Limited2017
- Ppda Install Ltd2023
- Prestige Water Tank Ltd2020
- Prior Construction Limited2015
All civil engineering contractors in Basildon · All trades in Basildon · Civil engineering across the UK
Frequently asked questions
When are O&A Consulting Limited's accounts due?
O&A Consulting Limited's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is O&A Consulting Limited'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 O&A Consulting Limited still trading?
O&A Consulting 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 O&A Consulting Limited do?
O&A Consulting Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is O&A Consulting Limited?
O&A Consulting Limited was incorporated on 7 May 2025, 1 year ago.
What is the penalty if O&A Consulting 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 O&A Consulting 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.