- Companies
- Specialist contractors
- Worthing
- Prolongate Limited
Prolongate Limited
- Company number
- 16326243
- Incorporated
- 19 Mar 20251 year trading
- Registered office
- Amelia House, Crescent Road, Worthing, West Sussex, BN11 1RL
- Nature of business
- Other specialised construction activities n.e.c.
Prolongate Limited is a 1-year-old private limited company registered in Worthing, company number 16326243, one of 82 specialist construction companies in Worthing. Its next accounts are due at Companies House on 19 December 2026, and its first CT600 is due at HMRC on 18 March 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 Prolongate Limited is registered
The registered office is in Worthing (BN11), in the Worthing local authority area, South East. Show BN11 1RL on a map.
Other trade companies in BN11
- B & W Electrical (South) LimitedElectricians
- SR Services Sussex LtdMachinery repair and installation
- TH Fencing & Landscaping Services LimitedSpecialist contractors
- Roofscanner LtdRoofers
- B and C Painting and Renovation LtdBuilders
- Careful Home Renovations LtdBuilders
- Abbey Garden Solutions LtdSpecialist contractors
- Thameswood Engineering LtdPlumbers and heating engineers
Shared registered office
72 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Prolongate 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 19 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 20 Dec 2026 to 19 Jan 2027 | £150 |
| 1 to 3 months late | 20 Jan 2027 to 19 Mar 2027 | £375 |
| 3 to 6 months late | 20 Mar 2027 to 19 Jun 2027 | £750 |
| More than 6 months late | From 20 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16326243
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 March 2025 (1 year ago)
- Registered office
- Amelia House, Crescent Road, Worthing, West Sussex, BN11 1RL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 18 March 2026
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 Worthing
Other active specialist construction companies registered in Worthing.
- PT Energy & Efficiencies Ltd2025
- R&S Greenhouse Ltd2018
- Rustington Windows UPVC Limited1989
- S R P Diamond Drilling Ltd2006
- Saxby Management Services Ltd2024
- SDW Landscapes Limited2015
- Shopshop Ltd2014
- Sound Landscaping Limited2012
All specialist construction companies in Worthing · All trades in Worthing · Specialist contractors across the UK
Frequently asked questions
When are Prolongate Limited's accounts due?
Prolongate Limited's next accounts are due at Companies House by 19 December 2026 (in 67 days), covering the period to 31 March 2026.
When is Prolongate 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 18 March 2026, due by 18 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Prolongate Limited still trading?
Prolongate 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 Prolongate Limited do?
Prolongate Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Prolongate Limited?
Prolongate Limited was incorporated on 19 March 2025, 1 year ago.
What is the penalty if Prolongate 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 Prolongate 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.