- Company number
- 17489073
- Incorporated
- 29 Sep 2026
- Registered office
- 6B High Street, Northwood, HA6 1BN
- Nature of business
- Construction of domestic buildings
Alexastef Limited is a newly incorporated private limited company registered in Northwood, company number 17489073, one of 54 building contractors in Northwood. Its next accounts are due at Companies House on 29 June 2028, and its first CT600 is due at HMRC on 28 September 2028.
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 Alexastef Limited is registered
The registered office is in Northwood (HA6), in the Hillingdon local authority area, London. Show HA6 1BN on a map.
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What happens if Alexastef Limited 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 29 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jun 2028 to 29 Jul 2028 | £150 |
| 1 to 3 months late | 30 Jul 2028 to 29 Sep 2028 | £375 |
| 3 to 6 months late | 30 Sep 2028 to 29 Dec 2028 | £750 |
| More than 6 months late | From 30 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | 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
- 17489073
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 September 2026
- Registered office
- 6B High Street, Northwood, HA6 1BN
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 Northwood
Other active building contractors registered in Northwood.
- Algarve Construction Ltd2020
- Amery Plant Limited2009
- Ark Smart Homes Limited2026
- Biro Utilities Ltd2026
- Blyss Garden Rooms Ltd2020
- Bridgeway Property Services Limited2005
- C S V Construction Limited1994
- C&B Building Construction Ltd2026
All building contractors in Northwood · All trades in Northwood · Builders across the UK
Frequently asked questions
When are Alexastef Limited's accounts due?
Alexastef Limited's next accounts are due at Companies House by 29 June 2028 (in 625 days), covering the period to 30 September 2027.
When is Alexastef 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 28 September 2027, due by 28 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Alexastef Limited still trading?
Alexastef Limited 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 Alexastef Limited do?
Alexastef Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Alexastef Limited?
Alexastef Limited was incorporated on 29 September 2026, less than a year ago.
What is the penalty if Alexastef 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 Alexastef Limited 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.