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- Structural Engineer Calcs Ltd
Company profile · Civil engineering
Structural Engineer Calcs Ltd
Structural Engineer Calcs Ltd is a 6-year-old private limited company registered in Stoke-on-Trent, company number 12653163, one of 73 civil engineering contractors in Stoke-on-Trent. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 June 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Structural Engineer Calcs Ltd over the years
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 down £35K on the year before, to -£35K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£35K | £136 | 2 | ||
| 30 Jun 2024 | £179 | £972 | £132 | 1 | |
| 30 Jun 2023 | -£1,095 | £2 | £497 | -2 | |
| 30 Jun 2022 | -£766 | £366 | 0 | ||
| 30 Jun 2021 | -£358 | £8 | £366 | 0 |
Where Structural Engineer Calcs Ltd is registered
The registered office is in Stoke-on-Trent (ST1), in the Stoke-on-Trent local authority area, West Midlands. Show ST1 6ES on a map.
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What happens if Structural Engineer Calcs 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12653163
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 June 2020 (6 years ago)
- Registered office
- 46 East Crescent, Stoke-on-Trent, ST1 6ES
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 13 June 2026
- Previous names
- Smart Carriages Ltd (until 1 Sep 2021)
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 Stoke-on-Trent
Other active civil engineering contractors registered in Stoke-on-Trent.
- Structural Surveys Nationwide Ltd2021
- Tarcon Groundwork Limited2020
- TF Power Consulting Limited2026
- The Dynasty Group Ltd2025
- Theprojectables Ltd2023
- UK Site & Civil Services Ltd2017
- Voltworx Ltd2025
- W. M. Utilities Limited2026
All civil engineering contractors in Stoke-on-Trent · All trades in Stoke-on-Trent · Civil engineering across the UK
Frequently asked questions
When are Structural Engineer Calcs Ltd's accounts due?
Structural Engineer Calcs Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Structural Engineer Calcs Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Structural Engineer Calcs Ltd still trading?
Structural Engineer Calcs 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 Structural Engineer Calcs Ltd do?
Structural Engineer Calcs Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Structural Engineer Calcs Ltd?
Structural Engineer Calcs Ltd was incorporated on 8 June 2020, 6 years ago.
What is the penalty if Structural Engineer Calcs 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 Structural Engineer Calcs 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.