- Companies
- Specialist contractors
- London
- Upfix Limited
Upfix Limited
- Company number
- 16572938
- Incorporated
- 10 Jul 20251 year trading
- Registered office
- Kingswood Arts, Seeley Drive, London, SE21 8QN
- Nature of business
- Other specialised construction activities n.e.c.
Upfix Limited is a 1-year-old private limited company registered in London, company number 16572938, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 10 April 2027, and its first CT600 is due at HMRC on 9 July 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 Upfix Limited is registered
The registered office is in London (SE21), in the Southwark local authority area, London. Show SE21 8QN on a map.
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What happens if Upfix 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 10 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Apr 2027 to 10 May 2027 | £150 |
| 1 to 3 months late | 11 May 2027 to 10 Jul 2027 | £375 |
| 3 to 6 months late | 11 Jul 2027 to 10 Oct 2027 | £750 |
| More than 6 months late | From 11 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16572938
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 July 2025 (1 year ago)
- Registered office
- Kingswood Arts, Seeley Drive, London, SE21 8QN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Upfull Services Limited2024
- Upgrade Your Home Limited2008
- Upscale Utilities Limited2022
- Upward Lifts Ltd2025
- Ur Brand Offices Ltd2020
- Urban Craft Ltd2024
- Urban Maintenance and Electrical NWM Ltd2026
- Urban Merits Surveys Ltd2018
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Upfix Limited's accounts due?
Upfix Limited's next accounts are due at Companies House by 10 April 2027 (in 180 days), covering the period to 31 July 2026.
When is Upfix 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 9 July 2026, due by 9 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Upfix Limited still trading?
Upfix Limited is listed as active on the Companies House register (checked 12 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 Upfix Limited do?
Upfix Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Upfix Limited?
Upfix Limited was incorporated on 10 July 2025, 1 year ago.
What is the penalty if Upfix 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 Upfix Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.