- Companies
- Civil engineering
- Thame
- Fundamentum Services Limited
Fundamentum Services Limited
- Company number
- 15158483
- Incorporated
- 23 Sep 20233 years trading
- Registered office
- 1A Kille Road, Chinnor Road, Thame, Oxfordshire, OX9 3NU
- Nature of business
- Construction of other civil engineering projects n.e.c.; Site preparation; Other construction installation; Other specialised construction activities n.e.c.
Fundamentum Services Limited is a 3-year-old private limited company registered in Thame, company number 15158483, one of the UK's civil engineering contractors. Companies House shows its accounts as overdue: they were due on 22 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Fundamentum Services Limited is registered
The registered office is in Thame (OX9), in the South Oxfordshire local authority area, South East. Show OX9 3NU on a map.
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What happens if Fundamentum Services Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 23 Sep 2026 to 22 Oct 2026 | £150 |
| 1 to 3 months late | 23 Oct 2026 to 22 Dec 2026 | £375 |
| 3 to 6 months late | 23 Dec 2026 to 22 Mar 2027 | £750 |
| More than 6 months late | From 23 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 23 Dec 2026 | £200 |
| 3 months late | 22 Mar 2027 | another £200 |
| 6 months late | 22 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 22 Dec 2027 | 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
- 15158483
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2023 (3 years ago)
- Registered office
- 1A Kille Road, Chinnor Road, Thame, Oxfordshire, OX9 3NU
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Site preparation (SIC 43120)
Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 29 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 2 November 2025
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 Thame
Other active civil engineering contractors registered in Thame.
All civil engineering contractors in Thame · All trades in Thame · Civil engineering across the UK
Frequently asked questions
When are Fundamentum Services Limited's accounts due?
Fundamentum Services Limited's accounts were due at Companies House on 22 September 2026 and the register shows them as overdue.
When is Fundamentum Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 September 2025, due by 30 September 2026, and one for the period to 22 December 2025, due by 22 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Fundamentum Services Limited still trading?
Fundamentum Services Limited is listed as active on the Companies House register (checked 13 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 Fundamentum Services Limited do?
Fundamentum Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Site preparation (SIC 43120); Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is Fundamentum Services Limited?
Fundamentum Services Limited was incorporated on 23 September 2023, 3 years ago.
What is the penalty if Fundamentum Services 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 Fundamentum Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.