- Companies
- Cleaning companies
- Swansea
- Celtic Office Cleaning Limited
Celtic Office Cleaning Limited
- Company number
- 16289633
- Incorporated
- 4 Mar 20251 year trading
- Registered office
- 11 Brodorion Drive, Cwmrhydyceirw, Swansea, SA6 6LP
- Nature of business
- General cleaning of buildings
Celtic Office Cleaning Limited is a 1-year-old private limited company registered in Swansea, company number 16289633, one of 125 cleaning companies in Swansea. 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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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where Celtic Office Cleaning Limited is registered
The registered office is in Swansea (SA6), in the Swansea local authority area, Wales. Show SA6 6LP on a map.
Other trade companies in SA6
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- Auto Surplus Wales LtdMotor traders
- Roofmaster Roofing and Building LtdProperty developers
- Everyday Maintenance Services LtdSpecialist contractors
- M.E Exterior Cleaning LimitedCleaning companies
- Color Harmony LtdPainters and decorators
- RSM Cars LimitedMotor traders
- T&T Roofing & Home Improvements LtdRoofers
What happens if Celtic Office Cleaning 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 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
- 16289633
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 March 2025 (1 year ago)
- Registered office
- 11 Brodorion Drive, Cwmrhydyceirw, Swansea, SA6 6LP
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 9 February 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 Swansea
Other active cleaning companies registered in Swansea.
- Chinwonu Limited2022
- Choice Cleaning Services Limited2002
- Clean to the Core Ltd2025
- Clean With A Gleam Ltd2018
- Cleaner Carpets (Wales) Limited2016
- Commercial Cleaning Contracts Ltd2021
- Commercial Cleaning Solutions Limited2026
- Concept BN Cymru Limited2025
All cleaning companies in Swansea · All trades in Swansea · Cleaning companies across the UK
Frequently asked questions
When are Celtic Office Cleaning Limited's accounts due?
Celtic Office Cleaning Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Celtic Office Cleaning Limited'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 Celtic Office Cleaning Limited still trading?
Celtic Office Cleaning Limited 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 Celtic Office Cleaning Limited do?
Celtic Office Cleaning Limited is registered under General cleaning of buildings (SIC 81210).
How old is Celtic Office Cleaning Limited?
Celtic Office Cleaning Limited was incorporated on 4 March 2025, 1 year ago.
What is the penalty if Celtic Office Cleaning 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 Celtic Office Cleaning Limited 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.