- Company number
- 17447778
- Incorporated
- 8 Sep 2026
- Registered office
- 102 Keel Drive, Slough, SL1 2SU
- Nature of business
- Construction of domestic buildings; Painting
Olna Limited is a newly incorporated private limited company registered in Slough, company number 17447778, one of 683 building contractors in Slough. Its next accounts are due at Companies House on 8 June 2028, and its first CT600 is due at HMRC on 7 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 Olna Limited is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 2SU on a map.
Other trade companies in SL1
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- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
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Also registered at this address
3 other companies use the same registered office as Olna Limited.
- Askl LtdBuilders
- Dusmak LtdBuilders
- Veeko Builders LimitedBuilders
What happens if Olna 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 8 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Jun 2028 to 8 Jul 2028 | £150 |
| 1 to 3 months late | 9 Jul 2028 to 8 Sep 2028 | £375 |
| 3 to 6 months late | 9 Sep 2028 to 8 Dec 2028 | £750 |
| More than 6 months late | From 9 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
- 17447778
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 September 2026
- Registered office
- 102 Keel Drive, Slough, SL1 2SU
- Nature of business
- Construction of domestic buildings (SIC 41202)
Painting (SIC 43341) - 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 Slough
Other active building contractors registered in Slough.
- On Top Roof & Build Ltd2025
- Onebuild Developments Group Ltd2026
- Osmarix Limited2025
- Ovi-Ewi-Insulation Ltd2024
- P Josan Builders Limited2024
- P R Global Services Ltd2026
- P&N Groundworks Ltd2021
- P&R Projects Limited2024
All building contractors in Slough · All trades in Slough · Builders across the UK
Frequently asked questions
When are Olna Limited's accounts due?
Olna Limited's next accounts are due at Companies House by 8 June 2028 (in 605 days), covering the period to 30 September 2027.
When is Olna 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 7 September 2027, due by 7 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 Olna Limited still trading?
Olna 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 Olna Limited do?
Olna Limited is registered under Construction of domestic buildings (SIC 41202); Painting (SIC 43341).
How old is Olna Limited?
Olna Limited was incorporated on 8 September 2026, less than a year ago.
What is the penalty if Olna 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 Olna 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.