- Company number
- 16431331
- Incorporated
- 6 May 20251 year trading
- Registered office
- 15 Churchill Avenue, Aylesbury, HP21 8NF
- Nature of business
- Construction of domestic buildings; Landscape service activities
Phi Building Services Ltd is a 1-year-old private limited company registered in Aylesbury, company number 16431331, one of 176 building contractors in Aylesbury. Its next accounts are due at Companies House on 6 February 2027, and its first CT600 is due at HMRC on 5 May 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Phi Building Services Ltd is registered
The registered office is in Aylesbury (HP21), in the Buckinghamshire local authority area, South East. Show HP21 8NF on a map.
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What happens if Phi Building 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 6 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Feb 2027 to 6 Mar 2027 | £150 |
| 1 to 3 months late | 7 Mar 2027 to 6 May 2027 | £375 |
| 3 to 6 months late | 7 May 2027 to 6 Aug 2027 | £750 |
| More than 6 months late | From 7 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16431331
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 May 2025 (1 year ago)
- Registered office
- 15 Churchill Avenue, Aylesbury, HP21 8NF
- Nature of business
- Construction of domestic buildings (SIC 41202)
Landscape service activities (SIC 81300) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 5 May 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Aylesbury
Other active building contractors registered in Aylesbury.
- Plexbourne Builders Limited1998
- Point North Construction Ltd2009
- Presley Contracting Limited2023
- Prima Developments Limited2007
- Profix Maintenance (Bucks) Ltd2025
- Proton Lorac 2 Ltd2026
- Proworks Building and Maintenance Ltd2021
- Ptpkl Ltd2023
All building contractors in Aylesbury · All trades in Aylesbury · Builders across the UK
Frequently asked questions
When are Phi Building Services Ltd's accounts due?
Phi Building Services Ltd's next accounts are due at Companies House by 6 February 2027 (in 117 days), covering the period to 31 May 2026.
When is Phi Building Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 5 May 2026, due by 5 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Phi Building Services Ltd still trading?
Phi Building 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 Phi Building Services Ltd do?
Phi Building Services Ltd is registered under Construction of domestic buildings (SIC 41202); Landscape service activities (SIC 81300).
How old is Phi Building Services Ltd?
Phi Building Services Ltd was incorporated on 6 May 2025, 1 year ago.
What is the penalty if Phi Building 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 Phi Building 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.