- Company number
- 17344136
- Incorporated
- 16 Jul 2026
- Registered office
- 356 Westminster Road, Flat 4, Liverpool, L4 3TF
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Alna Systems Ltd is a newly incorporated private limited company registered in Liverpool, company number 17344136, one of 644 building contractors in Liverpool. Its next accounts are due at Companies House on 16 April 2028, and its first CT600 is due at HMRC on 15 July 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 Alna Systems Ltd is registered
The registered office is in Liverpool (L4), in the Liverpool local authority area, North West. Show L4 3TF on a map.
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What happens if Alna Systems 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 16 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Apr 2028 to 16 May 2028 | £150 |
| 1 to 3 months late | 17 May 2028 to 16 Jul 2028 | £375 |
| 3 to 6 months late | 17 Jul 2028 to 16 Oct 2028 | £750 |
| More than 6 months late | From 17 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17344136
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2026
- Registered office
- 356 Westminster Road, Flat 4, Liverpool, L4 3TF
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 31 July (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 Liverpool
Other active building contractors registered in Liverpool.
- Alwyn Builders Ltd2026
- Am Consultant Group Ltd2025
- Amazing Bathrooms Ltd2023
- Ami Developments Limited2016
- Ang Construction Limited2024
- Antara+ Ltd2026
- Anthony Lackey Ltd2026
- Apg Build Limited2017
All building contractors in Liverpool · All trades in Liverpool · Builders across the UK
Frequently asked questions
When are Alna Systems Ltd's accounts due?
Alna Systems Ltd's next accounts are due at Companies House by 16 April 2028 (in 552 days), covering the period to 31 July 2027.
When is Alna Systems 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 15 July 2027, due by 15 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Alna Systems Ltd still trading?
Alna Systems 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 Alna Systems Ltd do?
Alna Systems Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Alna Systems Ltd?
Alna Systems Ltd was incorporated on 16 July 2026, less than a year ago.
What is the penalty if Alna Systems 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 Alna Systems 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.