- Company number
- 09966415
- Incorporated
- 25 Jan 201610 years trading
- Registered office
- 53 Whitefriars Drive, Harrow, HA3 5HW
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Prosperous Forever Limited is a 10-year-old private limited company registered in Harrow, company number 09966415, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Prosperous Forever LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £17K (+23.4%) on the year before, to -£56K.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £7,845 against £57K owed within a year: 0.1 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£56K | £7,845 | £57K | 3 | |
| 31 Jan 2024 | -£73K | £18K | £77K | 3 | |
| 31 Jan 2023 | -£48K | £13K | £38K | 3 | |
| 31 Jan 2022 | -£37K | £13K | £19K | 3 | |
| 31 Jan 2021 | -£15K | £38K | £17K | 2 | |
| 31 Jan 2020 | £5,043 | £22K | £31K | 1 | |
| 31 Jan 2019 | £10K | £16K | £6,635 | ||
| 31 Jan 2018 | £3,639 | £6,307 | £2,668 | ||
| 31 Jan 2017 | £2 | £2 |
Where Prosperous Forever Limited is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 5HW on a map.
Other trade companies in HA3
- M&M Team Solutions LimitedCleaning companies
- Asr234 LimitedCivil engineering
- Shine Bright With NV LtdMechanics and garages
- Direct Sparks LtdMachinery repair and installation
- Meral Decoration & Maintenance LtdPainters and decorators
- Add22 LtdCivil engineering
- Floyd Cleaners LimitedCleaning companies
- Amalia&Ioana LimitedBuilders
Also registered at this address
1 other company uses the same registered office as Prosperous Forever Limited.
- JW Longevity LimitedBuilders
What happens if Prosperous Forever 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 09966415
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 January 2016 (10 years ago)
- Registered office
- 53 Whitefriars Drive, Harrow, HA3 5HW
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 3 September 2026
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 Harrow
Other active building contractors registered in Harrow.
- Pruteanu Ltd2024
- Pryke Romaniuk Limited2005
- Psa2020 Construction Ltd2020
- Qtraining & Building Ltd2019
- Quality Builds Ltd2021
- Quality&Comfort Ltd2026
- Quantum 25 Ltd2020
- Quinz Company Limited2006
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Prosperous Forever Limited's accounts due?
Prosperous Forever Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Prosperous Forever Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Prosperous Forever Limited still trading?
Prosperous Forever 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 Prosperous Forever Limited do?
Prosperous Forever Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Prosperous Forever Limited?
Prosperous Forever Limited was incorporated on 25 January 2016, 10 years ago.
What is the penalty if Prosperous Forever 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 Prosperous Forever 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.