- Companies
- Civil engineering
- Llanrwst
- R&M Utilities Ltd
R&M Utilities Ltd
- Company number
- 16354438
- Incorporated
- 31 Mar 20251 year trading
- Registered office
- 8 Maes Y Felin, Melin-Y-Coed, Llanrwst, LL26 0SF
- Nature of business
- Construction of utility projects for electricity and telecommunications
R&M Utilities Ltd is a 1-year-old private limited company registered in Llanrwst, company number 16354438, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 30 March 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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Where R&M Utilities Ltd is registered
The registered office is in Llanrwst (LL26), in the Conwy local authority area, Wales. Show LL26 0SF on a map.
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What happens if R&M Utilities 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16354438
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 March 2025 (1 year ago)
- Registered office
- 8 Maes Y Felin, Melin-Y-Coed, Llanrwst, LL26 0SF
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 30 March 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Llanrwst
Other active civil engineering contractors registered in Llanrwst.
All civil engineering contractors in Llanrwst · All trades in Llanrwst · Civil engineering across the UK
Frequently asked questions
When are R&M Utilities Ltd's accounts due?
R&M Utilities Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is R&M Utilities 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 30 March 2026, due by 30 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is R&M Utilities Ltd still trading?
R&M Utilities 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 R&M Utilities Ltd do?
R&M Utilities Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is R&M Utilities Ltd?
R&M Utilities Ltd was incorporated on 31 March 2025, 1 year ago.
What is the penalty if R&M Utilities 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 R&M Utilities 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.