- Company number
- 17224442
- Incorporated
- 16 May 2026
- Registered office
- 27 Wright Square, Windsor, SL4 4YQ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Engineering related scientific and technical consulting activities
Fynix Group Ltd is a newly incorporated private limited company registered in Windsor, company number 17224442, one of 66 building contractors in Windsor. Its next accounts are due at Companies House on 16 February 2028, and its first CT600 is due at HMRC on 15 May 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 Fynix Group Ltd is registered
The registered office is in Windsor (SL4), in the Windsor and Maidenhead local authority area, South East. Show SL4 4YQ on a map.
Other trade companies in SL4
- A3 Hand Car Wash and Valeting Center LimitedCleaning companies
- Time Watch Repair Watford LtdRepair services
- Mobile Tyre Services 24/7 LtdMechanics and garages
- Hullscrub Thames LtdCleaning companies
- Black Rose Automotive Group LtdMotor traders
- Maldec Hatchet Farm LimitedProperty developers
- Pinehill Homes Partnerships LtdProperty developers
- Heatsense Renewables LtdElectricians
What happens if Fynix Group 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 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Feb 2028 to 16 Mar 2028 | £150 |
| 1 to 3 months late | 17 Mar 2028 to 16 May 2028 | £375 |
| 3 to 6 months late | 17 May 2028 to 16 Aug 2028 | £750 |
| More than 6 months late | From 17 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17224442
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 May 2026
- Registered office
- 27 Wright Square, Windsor, SL4 4YQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Engineering related scientific and technical consulting activities (SIC 71122) - Year end
- 31 May (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 Windsor
Other active building contractors registered in Windsor.
- GK General Building Ltd2022
- Global Engineering & Trading Ltd2025
- Green Space Studios Ltd2022
- H and M Building Services Ltd2021
- H S Sembhi Builders Limited2018
- Heverwood Building Services Limited2015
- Infynet Ltd2026
- Integrated Sustainable Living Limited2021
All building contractors in Windsor · All trades in Windsor · Builders across the UK
Frequently asked questions
When are Fynix Group Ltd's accounts due?
Fynix Group Ltd's next accounts are due at Companies House by 16 February 2028 (in 492 days), covering the period to 31 May 2027.
When is Fynix Group 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 May 2027, due by 15 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Fynix Group Ltd still trading?
Fynix Group 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 Fynix Group Ltd do?
Fynix Group Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Engineering related scientific and technical consulting activities (SIC 71122).
How old is Fynix Group Ltd?
Fynix Group Ltd was incorporated on 16 May 2026, less than a year ago.
What is the penalty if Fynix Group 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 Fynix Group 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.