- Companies
- Specialist contractors
- Darlington
- RTL Energy Consultants Limited
RTL Energy Consultants Limited
- Company number
- 16575996
- Incorporated
- 11 Jul 20251 year trading
- Registered office
- 8 New Lane, Neasham, Darlington, DL2 1QR
- Nature of business
- Other specialised construction activities n.e.c.
RTL Energy Consultants Limited is a 1-year-old private limited company registered in Darlington, company number 16575996, one of 66 specialist construction companies in Darlington. Its next accounts are due at Companies House on 11 April 2027, and its first CT600 is due at HMRC on 10 July 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 RTL Energy Consultants Limited is registered
The registered office is in Darlington (DL2), in the Darlington local authority area, North East. Show DL2 1QR on a map.
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- Brookes HV Solutions LimitedElectricians
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Also registered at this address
1 other company uses the same registered office as RTL Energy Consultants Limited.
- BH Blinds & Shutters LtdInstallers
What happens if RTL Energy Consultants 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 11 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Apr 2027 to 11 May 2027 | £150 |
| 1 to 3 months late | 12 May 2027 to 11 Jul 2027 | £375 |
| 3 to 6 months late | 12 Jul 2027 to 11 Oct 2027 | £750 |
| More than 6 months late | From 12 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16575996
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 July 2025 (1 year ago)
- Registered office
- 8 New Lane, Neasham, Darlington, DL2 1QR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 July 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Darlington
Other active specialist construction companies registered in Darlington.
- RW Access Limited2022
- S & S Rope Access Systems Ltd2024
- SB Brookdale Services Limited2023
- Sea & Land Welding Limited2013
- Stone Technical Services Group Limited2000
- SW Lunnon Construction Ltd2018
- Three-6 Building Control Ltd2026
- Tica Certification Limited2025
All specialist construction companies in Darlington · All trades in Darlington · Specialist contractors across the UK
Frequently asked questions
When are RTL Energy Consultants Limited's accounts due?
RTL Energy Consultants Limited's next accounts are due at Companies House by 11 April 2027 (in 180 days), covering the period to 31 July 2026.
When is RTL Energy Consultants Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 10 July 2026, due by 10 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is RTL Energy Consultants Limited still trading?
RTL Energy Consultants 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 RTL Energy Consultants Limited do?
RTL Energy Consultants Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is RTL Energy Consultants Limited?
RTL Energy Consultants Limited was incorporated on 11 July 2025, 1 year ago.
What is the penalty if RTL Energy Consultants 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 RTL Energy Consultants 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.