- Companies
- Civil engineering
- Leighton Buzzard
- X Fiber Ltd
X Fiber Ltd
- Company number
- 15756514
- Incorporated
- 2 Jun 20242 years trading
- Registered office
- 2 Sparrow Path, Leighton Buzzard, LU7 4DE
- Nature of business
- Construction of railways and underground railways; Construction of utility projects for electricity and telecommunications
X Fiber Ltd is a 2-year-old private limited company registered in Leighton Buzzard, company number 15756514, one of 19 civil engineering contractors in Leighton Buzzard. 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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Where X Fiber Ltd is registered
The registered office is in Leighton Buzzard (LU7), in the Central Bedfordshire local authority area, East of England. Show LU7 4DE on a map.
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- S.E.C. Cladding LtdInstallers
- Dowell and Fields LimitedProperty developers
- Prime Seal Roofing & Guttering LtdRoofers
- Pristine Cleaning Solutions 83 LtdCleaning companies
- Marquez Aviation LimitedMachinery repair and installation
- Shazglobal LtdMechanics and garages
- L.T. Advanced Scaffolding LtdBuilders
What happens if X Fiber 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
- 15756514
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 June 2024 (2 years ago)
- Registered office
- 2 Sparrow Path, Leighton Buzzard, LU7 4DE
- Nature of business
- Construction of railways and underground railways (SIC 42120)
Construction of utility projects for electricity and telecommunications (SIC 42220) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 1 June 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 Leighton Buzzard
Other active civil engineering contractors registered in Leighton Buzzard.
- Aa Digging Ltd2023
- C R Management Solutions Limited2008
- Centrium Commercial Limited2009
- Grigas Consultancy Ltd2019
- Harmill Systems Limited1990
- I.G.D. Construction Ltd2024
- JDT Hamblin Limited2016
- Krause & Hall Holdings Limited2025
All civil engineering contractors in Leighton Buzzard · All trades in Leighton Buzzard · Civil engineering across the UK
Frequently asked questions
When are X Fiber Ltd's accounts due?
X Fiber Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is X Fiber 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 X Fiber Ltd still trading?
X Fiber 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 X Fiber Ltd do?
X Fiber Ltd is registered under Construction of railways and underground railways (SIC 42120); Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is X Fiber Ltd?
X Fiber Ltd was incorporated on 2 June 2024, 2 years ago.
What is the penalty if X Fiber 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 X Fiber 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.