- Companies
- Finishing trades
- London
- S B Karsan Ltd
S B Karsan Ltd
- Company number
- 07223641
- Incorporated
- 14 Apr 201016 years trading
- Registered office
- 19 Buxton Road, Willesdan Green, London, NW2 5BL
- Nature of business
- Other building completion and finishing
S B Karsan Ltd is a 16-year-old private limited company registered in London, company number 07223641, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 31 January 2028, and the CT600 for the period to 30 April 2027 is due at HMRC on 30 April 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 down £6,478 (-35.8%) on the year before, to £12K.
- Net assets rose in 2 of 8 year-on-year comparisons on record.
- Current assets of £244K against £232K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2026 | £12K | £243K | £244K | £232K | 0 |
| 30 Apr 2025 | £18K | £226K | £229K | £211K | 1 |
| 30 Apr 2024 | £17K | £233K | £238K | £221K | 1 |
| 30 Apr 2023 | £21K | £213K | £219K | £198K | 1 |
| 30 Apr 2022 | £20K | £198K | £202K | £183K | 1 |
| 30 Apr 2021 | £26K | £191K | £191K | £165K | 1 |
| 30 Apr 2020 | £28K | £163K | £164K | £136K | 1 |
| 30 Apr 2019 | £36K | £148K | £149K | £113K | |
| 30 Apr 2018 | £38K | £148K | £109K | ||
| 30 Apr 2017 | £203K |
Where S B Karsan Ltd is registered
The registered office is in London (NW2), in the Brent local authority area, London. Show NW2 5BL on a map.
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What happens if S B Karsan 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 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2028 to 29 Feb 2028 | £150 |
| 1 to 3 months late | 1 Mar 2028 to 30 Apr 2028 | £375 |
| 3 to 6 months late | 1 May 2028 to 31 Jul 2028 | £750 |
| More than 6 months late | From 1 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 07223641
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2010 (16 years ago)
- Registered office
- 19 Buxton Road, Willesdan Green, London, NW2 5BL
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2026
- Last confirmation statement
- 14 April 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- S Cooper Build Ltd2015
- S Ground Ltd2012
- S N Building Services Ltd2002
- S Property Services Ltd2022
- S Zholi Ltd2015
- S&B Design Construction Limited2020
- S&C Great Coat Ltd2024
- S&D Glazing Ltd2018
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are S B Karsan Ltd's accounts due?
S B Karsan Ltd's next accounts are due at Companies House by 31 January 2028 (in 475 days), covering the period to 30 April 2027.
When is S B Karsan Ltd's CT600 due?
The CT600 for the period to 30 April 2027 is due at HMRC by 30 April 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2028.
Is S B Karsan Ltd still trading?
S B Karsan 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 S B Karsan Ltd do?
S B Karsan Ltd is registered under Other building completion and finishing (SIC 43390).
How old is S B Karsan Ltd?
S B Karsan Ltd was incorporated on 14 April 2010, 16 years ago.
What is the penalty if S B Karsan 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 S B Karsan 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.