- Companies
- Civil engineering
- St Andrews
- Cuis Ltd.
Cuis Ltd.
- Company number
- SC475517
- Incorporated
- 17 Apr 201412 years trading
- Registered office
- Cairnfield 14 School Road, Balmullo, St Andrews, Fife, KY16 0BD
- Nature of business
- Construction of other civil engineering projects n.e.c.
Cuis Ltd. is a 12-year-old private limited company registered in St Andrews, company number SC475517, one of the UK's civil engineering contractors. 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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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 £19K (+910.1%) on the year before, to £22K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £67K against £41K owed within a year: 1.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £22K | £67K | £41K | 2 | |
| 30 Jun 2024 | £2,141 | £37K | £27K | 2 | |
| 30 Jun 2023 | £735 | £32K | £21K | 2 | |
| 30 Jun 2022 | £21K | £71K | £35K | 2 | |
| 30 Jun 2021 | £8,792 | £55K | £29K | 2 | |
| 30 Jun 2020 | £9,495 | £32K | £23K | 2 | |
| 30 Jun 2019 | £11K | £29K | £18K | ||
| 30 Jun 2018 | £6,727 | £28K | £21K | ||
| 30 Jun 2017 | £18K | £33K | £15K | ||
| 30 Jun 2016 | £3,189 | £7,866 | £21K | £18K |
Where Cuis Ltd. is registered
The registered office is in St Andrews (KY16), in the Fife local authority area, Scotland. Show KY16 0BD on a map.
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Also registered at this address
17 other companies use the same registered office as Cuis Ltd..
- A & P Turbine Services LimitedMachinery repair and installation
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- Apex Automotive 44 LtdMechanics and garages
- C & A Plant Services Ltd.Groundworks and demolition
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- D & S Smith LimitedPlumbers and heating engineers
- Edenshine LtdCleaning companies
- Full Circle Renovations (Scotland) LtdSpecialist contractors
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- Housework (Edinburgh) LtdCleaning companies
- JMJ Joiners & Developers LtdBuilders
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- Precedent P.D.R. Ltd.Mechanics and garages
- Prestige Power Electrical LtdElectricians
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What happens if Cuis 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
- SC475517
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 April 2014 (12 years ago)
- Registered office
- Cairnfield 14 School Road, Balmullo, St Andrews, Fife, KY16 0BD
- 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
- 17 April 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 St Andrews
Other active civil engineering contractors registered in St Andrews.
All civil engineering contractors in St Andrews · All trades in St Andrews · Civil engineering across the UK
Frequently asked questions
When are Cuis Ltd.'s accounts due?
Cuis 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 Cuis 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 Cuis Ltd. still trading?
Cuis 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 Cuis Ltd. do?
Cuis Ltd. is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Cuis Ltd.?
Cuis Ltd. was incorporated on 17 April 2014, 12 years ago.
What is the penalty if Cuis 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 Cuis 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.