- Companies
- Cleaning companies
- London
- Joan Sponge Ltd
Joan Sponge Ltd
- Company number
- 16178770
- Incorporated
- 13 Jan 20251 year trading
- Registered office
- 5A Oldfield Road, Harlesden, London, NW10 9UD
- Nature of business
- General cleaning of buildings; Specialised cleaning services
Joan Sponge Ltd is a 1-year-old private limited company registered in London, company number 16178770, one of 5,627 cleaning companies in London. Its next accounts are due at Companies House on 13 October 2026, and its first CT600 is due at HMRC on 12 January 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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Financial snapshot, 2026
From the balance sheet at 31 January 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Joan Sponge Ltd is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 9UD on a map.
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What happens if Joan Sponge 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 13 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Oct 2026 to 13 Nov 2026 | £150 |
| 1 to 3 months late | 14 Nov 2026 to 13 Jan 2027 | £375 |
| 3 to 6 months late | 14 Jan 2027 to 13 Apr 2027 | £750 |
| More than 6 months late | From 14 Apr 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
- 16178770
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2025 (1 year ago)
- Registered office
- 5A Oldfield Road, Harlesden, London, NW10 9UD
- Nature of business
- General cleaning of buildings (SIC 81210)
Specialised cleaning services (SIC 81222) - Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 12 January 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in London
Other active cleaning companies registered in London.
- Joans Property Care Ltd2026
- Job Done Cleaning Ltd2026
- Joe Inc Limited2026
- Joetee Optima Ltd2026
- John Cleaning and Maintenance Ltd2026
- John-Jolly Multi-Services Ltd2018
- Johnnydell Cleaning Services Limited2022
- Jok3R Limited2024
All cleaning companies in London · All trades in London · Cleaning companies across the UK
Frequently asked questions
When are Joan Sponge Ltd's accounts due?
Joan Sponge Ltd's next accounts are due at Companies House by 13 October 2026 (today), covering the period to 31 January 2026.
When is Joan Sponge Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 12 January 2026, due by 12 January 2027, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Joan Sponge Ltd still trading?
Joan Sponge 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 Joan Sponge Ltd do?
Joan Sponge Ltd is registered under General cleaning of buildings (SIC 81210); Specialised cleaning services (SIC 81222).
How old is Joan Sponge Ltd?
Joan Sponge Ltd was incorporated on 13 January 2025, 1 year ago.
What is the penalty if Joan Sponge 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 Joan Sponge 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.