- Companies
- Civil engineering
- Buckingham
- Rsa Contract Services Ltd
Rsa Contract Services Ltd
- Company number
- 05371997
- Incorporated
- 22 Feb 200521 years trading
- Registered office
- 8 Bycell Road, Maids Moreton, Buckingham, MK18 1SP
- Nature of business
- Construction of water projects
Rsa Contract Services Ltd is a 21-year-old private limited company registered in Buckingham, company number 05371997, one of 11 civil engineering contractors in Buckingham. Its next accounts are due at Companies House on 4 January 2027, and the CT600 for the period to 4 April 2026 is due at HMRC on 4 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 down £9,472 (-12%) on the year before, to -£88K.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £4,192 against £106K owed within a year: 0.0 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 |
|---|---|---|---|---|---|
| 4 Apr 2025 | -£88K | £4,192 | £106K | 2 | |
| 4 Apr 2024 | -£79K | £20K | £109K | 2 | |
| 4 Apr 2023 | -£70K | £34K | 2 | ||
| 4 Apr 2022 | -£46K | £38K | £75K | 2 | |
| 4 Apr 2021 | -£56K | £21K | £57K | 2 | |
| 4 Apr 2020 | £35K | -£12K | £47K | 2 | |
| 4 Apr 2019 | £60K | -£1,000 | £61K | ||
| 4 Apr 2018 | £71K | £21K | £91K | ||
| 4 Apr 2017 | -£101K | £16K | £119K | ||
| 4 Apr 2016 | -£7,617 | £29K | £49K |
Where Rsa Contract Services Ltd is registered
The registered office is in Buckingham (MK18), in the Buckinghamshire local authority area, South East. Show MK18 1SP on a map.
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What happens if Rsa Contract Services 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 4 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Jan 2027 to 4 Feb 2027 | £150 |
| 1 to 3 months late | 5 Feb 2027 to 4 Apr 2027 | £375 |
| 3 to 6 months late | 5 Apr 2027 to 4 Jul 2027 | £750 |
| More than 6 months late | From 5 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 5 Apr 2027 | £200 |
| 3 months late | 4 Jul 2027 | another £200 |
| 6 months late | 4 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 4 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
- 05371997
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 February 2005 (21 years ago)
- Registered office
- 8 Bycell Road, Maids Moreton, Buckingham, MK18 1SP
- Nature of business
- Construction of water projects (SIC 42910)
- Year end
- 4 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 4 April 2025
- Last confirmation statement
- 1 February 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 Buckingham
Other active civil engineering contractors registered in Buckingham.
- Rykirst Construction Ltd2006
- S J Humphrey Agricultural Buildings Ltd2009
- Sandcastle Builders Ltd1986
- Snypr Setting Out Engineers Ltd2020
- T2TM Ltd2025
- 3GB Limited2003
- Crawford Countryside Services Ltd2024
- Electricity Network Contractors Limited2017
All civil engineering contractors in Buckingham · All trades in Buckingham · Civil engineering across the UK
Frequently asked questions
When are Rsa Contract Services Ltd's accounts due?
Rsa Contract Services Ltd's next accounts are due at Companies House by 4 January 2027 (in 84 days), covering the period to 4 April 2026.
When is Rsa Contract Services Ltd's CT600 due?
The CT600 for the period to 4 April 2026 is due at HMRC by 4 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 5 January 2027.
Is Rsa Contract Services Ltd still trading?
Rsa Contract Services 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 Rsa Contract Services Ltd do?
Rsa Contract Services Ltd is registered under Construction of water projects (SIC 42910).
How old is Rsa Contract Services Ltd?
Rsa Contract Services Ltd was incorporated on 22 February 2005, 21 years ago.
What is the penalty if Rsa Contract Services 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 Rsa Contract Services 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.