Rmatus Ltd
- Company number
- 17336253
- Incorporated
- 13 Jul 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Rmatus Ltd is a newly incorporated private limited company registered in Covent Garden, company number 17336253, one of 170 plumbing and heating companies in Covent Garden. Its next accounts are due at Companies House on 13 April 2028, and its first CT600 is due at HMRC on 12 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 Rmatus Ltd is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
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- Fixing London LtdSpecialist contractors
Shared registered office
4,529 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Rmatus 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 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Apr 2028 to 13 May 2028 | £150 |
| 1 to 3 months late | 14 May 2028 to 13 Jul 2028 | £375 |
| 3 to 6 months late | 14 Jul 2028 to 13 Oct 2028 | £750 |
| More than 6 months late | From 14 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
- 17336253
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 July 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Covent Garden
Other active plumbing and heating companies registered in Covent Garden.
- Rmbe Plumbing & Maintenance Ltd2025
- Safe Gas I.O.W Ltd2023
- Shirlaw Plumbing Limited2026
- Smartstone Energy Solutions Ltd2019
- SMT Air Ltd2024
- Sol Heating Lincs Ltd2024
- Solacium Gas Limited2026
- Solitaire Bathrooms Ltd2025
All plumbing and heating companies in Covent Garden · All trades in Covent Garden · Plumbers and heating engineers across the UK
Frequently asked questions
When are Rmatus Ltd's accounts due?
Rmatus Ltd's next accounts are due at Companies House by 13 April 2028 (in 549 days), covering the period to 31 July 2027.
When is Rmatus 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 July 2027, due by 12 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 Rmatus Ltd still trading?
Rmatus 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 Rmatus Ltd do?
Rmatus Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Rmatus Ltd?
Rmatus Ltd was incorporated on 13 July 2026, less than a year ago.
What is the penalty if Rmatus 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 Rmatus 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.