- Companies
- Cleaning companies
- Southampton
- Diamond Swift Clean Ltd
Diamond Swift Clean Ltd
- Company number
- 17351675
- Incorporated
- 21 Jul 2026
- Registered office
- 1 Friars Way, Southampton, SO18 2JU
- Nature of business
- General cleaning of buildings
Diamond Swift Clean Ltd is a newly incorporated private limited company registered in Southampton, company number 17351675, one of 274 cleaning companies in Southampton. Its next accounts are due at Companies House on 21 April 2028, and its first CT600 is due at HMRC on 20 July 2028.
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 Diamond Swift Clean Ltd is registered
The registered office is in Southampton (SO18), in the Southampton local authority area, South East. Show SO18 2JU on a map.
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- Omni Group Holdings LtdSpecialist contractors
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- Amiri Mobile Mechanic LtdMechanics and garages
- Roofing Building & Maintenance LtdSpecialist contractors
- The Tidy Life LtdCleaning companies
What happens if Diamond Swift Clean 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 21 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Apr 2028 to 21 May 2028 | £150 |
| 1 to 3 months late | 22 May 2028 to 21 Jul 2028 | £375 |
| 3 to 6 months late | 22 Jul 2028 to 21 Oct 2028 | £750 |
| More than 6 months late | From 22 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17351675
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 July 2026
- Registered office
- 1 Friars Way, Southampton, SO18 2JU
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
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 Southampton
Other active cleaning companies registered in Southampton.
- Diamond Window Cleaning Hampshire Ltd2026
- Diary Quest Ltd2013
- Dimension Services Ltd2024
- Direct Cleaning (Fair Oak) Limited2013
- Dirt Breaker Ltd2022
- DR Pest & Clean Ltd2026
- DVG Facilities Management Ltd.2023
- DW Exterior Cleaning Ltd2026
All cleaning companies in Southampton · All trades in Southampton · Cleaning companies across the UK
Frequently asked questions
When are Diamond Swift Clean Ltd's accounts due?
Diamond Swift Clean Ltd's next accounts are due at Companies House by 21 April 2028 (in 556 days), covering the period to 31 July 2027.
When is Diamond Swift Clean 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 20 July 2027, due by 20 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diamond Swift Clean Ltd still trading?
Diamond Swift Clean 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 Diamond Swift Clean Ltd do?
Diamond Swift Clean Ltd is registered under General cleaning of buildings (SIC 81210).
How old is Diamond Swift Clean Ltd?
Diamond Swift Clean Ltd was incorporated on 21 July 2026, less than a year ago.
What is the penalty if Diamond Swift Clean 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 Diamond Swift Clean 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.