- Companies
- Cleaning companies
- Luton
- Seprofix Ltd
Seprofix Ltd
- Company number
- 17305049
- Incorporated
- 28 Jun 2026
- Registered office
- 152A Dunstable Road, Luton, LU1 1EW
- Nature of business
- General cleaning of buildings
Seprofix Ltd is a newly incorporated private limited company registered in Luton, company number 17305049, one of 209 cleaning companies in Luton. Its next accounts are due at Companies House on 28 March 2028, and its first CT600 is due at HMRC on 27 June 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 Seprofix Ltd is registered
The registered office is in Luton (LU1), in the Luton local authority area, East of England. Show LU1 1EW on a map.
Other trade companies in LU1
- Metalia Plastering LtdPlasterers
- Luton Bodyworks LtdMechanics and garages
- Speedyone LtdGroundworks and demolition
- Varion Construction LtdProperty developers
- Bromhams LtdMotor traders
- Vertex Home Improvements LtdRoofers
- Skillede LtdElectricians
- Avram Cleaning LtdCleaning companies
Also registered at this address
6 other companies use the same registered office as Seprofix Ltd.
- Aaf Electrical LtdElectricians
- Autocheck Consultants LtdMechanics and garages
- Cleanr LimitedMechanics and garages
- Five Autos LimitedMotor traders
- Handytiips Plumbing LimitedPlumbers and heating engineers
- Woodside Car Motor Sales LimitedMotor traders
What happens if Seprofix 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 28 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Mar 2028 to 28 Apr 2028 | £150 |
| 1 to 3 months late | 29 Apr 2028 to 28 Jun 2028 | £375 |
| 3 to 6 months late | 29 Jun 2028 to 28 Sep 2028 | £750 |
| More than 6 months late | From 29 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17305049
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2026
- Registered office
- 152A Dunstable Road, Luton, LU1 1EW
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 30 June (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 Luton
Other active cleaning companies registered in Luton.
- Services by Vlad Ltd2022
- SG Cleaning and Maintenance Services Ltd2026
- Shine and Glow Ltd2026
- Shinezone Limited2025
- Simply Sparkling Ltd2025
- Sky-Klean Services Ltd2022
- SLC Cleaning Ltd2023
- Smilo Cleaning Services Ltd2026
All cleaning companies in Luton · All trades in Luton · Cleaning companies across the UK
Frequently asked questions
When are Seprofix Ltd's accounts due?
Seprofix Ltd's next accounts are due at Companies House by 28 March 2028 (in 533 days), covering the period to 30 June 2027.
When is Seprofix 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 27 June 2027, due by 27 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seprofix Ltd still trading?
Seprofix 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 Seprofix Ltd do?
Seprofix Ltd is registered under General cleaning of buildings (SIC 81210).
How old is Seprofix Ltd?
Seprofix Ltd was incorporated on 28 June 2026, less than a year ago.
What is the penalty if Seprofix 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 Seprofix 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.