- Company number
- 11771938
- Incorporated
- 16 Jan 20197 years trading
- Registered office
- 25 Hadleigh Drive, Sutton, SM2 5BF
- Nature of business
- Construction of commercial buildings
Rainbow BSB Ltd is a 7-year-old private limited company registered in Sutton, company number 11771938, one of 236 building contractors in Sutton. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £7,608 (+62%) on the year before, to £20K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £25K against £5,361 owed within a year: 4.7 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £20K | £13K | £25K | £5,361 | 3 |
| 31 Mar 2025 | £12K | £5,922 | £17K | £5,565 | 3 |
| 31 Mar 2024 | £8,987 | £6,036 | £17K | £8,421 | 3 |
| 31 Mar 2023 | £3,436 | £4,054 | £13K | £3,385 | 2 |
| 31 Mar 2022 | £2,603 | £4,816 | £13K | £2,488 | 2 |
| 31 Mar 2021 | £6,040 | £12K | £19K | £2,710 | 2 |
| 31 Mar 2020 | £7,366 | £2,201 | £9,094 | £1,728 | 2 |
Where Rainbow BSB Ltd is registered
The registered office is in Sutton (SM2), in the Sutton local authority area, London. Show SM2 5BF on a map.
Other trade companies in SM2
- Stent Projects London LtdBuilders
- Ry Rigging Services LtdInstallers
- JP Plumbing, Heating & Drainage Solutions LtdPlumbers and heating engineers
- MR & Sons Roofing & Building LtdBuilders
- Velora Facilities LimitedCleaning companies
- Sparkle Shark LtdCleaning companies
- GL Building Solutions LtdBuilders
- Bespoke Air Design and Installation LimitedPlumbers and heating engineers
What happens if Rainbow BSB 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11771938
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 January 2019 (7 years ago)
- Registered office
- 25 Hadleigh Drive, Sutton, SM2 5BF
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 11 January 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 Sutton
Other active building contractors registered in Sutton.
- Rapid Building Contractors Limited2020
- Rce Luxury Developments Ltd2025
- RDK Design and Build Limited2025
- Reid & Co Construction Ltd2017
- Rennova Build Solutions Ltd2024
- Renovations-Etc Ltd2021
- Right Build Group Ltd2024
- RJH Scaffolding Ltd.2021
All building contractors in Sutton · All trades in Sutton · Builders across the UK
Frequently asked questions
When are Rainbow BSB Ltd's accounts due?
Rainbow BSB Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Rainbow BSB Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Rainbow BSB Ltd still trading?
Rainbow BSB 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 Rainbow BSB Ltd do?
Rainbow BSB Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Rainbow BSB Ltd?
Rainbow BSB Ltd was incorporated on 16 January 2019, 7 years ago.
What is the penalty if Rainbow BSB 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 Rainbow BSB 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.