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  4. NRG Rail Ltd

NRG Rail Ltd

ActiveNo accounts filed yet accountsCivil engineeringSaffron Walden
Company number
17123705
Incorporated
29 Mar 2026
Registered office
37 Winstanley Road, Saffron Walden, CB11 3EQ
Nature of business
Construction of railways and underground railways; Construction of utility projects for electricity and telecommunications; Management consultancy activities other than financial management
Accounts due in
442 days
29 Dec 2027
From the Companies House register, 1 Oct 2026

NRG Rail Ltd is a newly incorporated private limited company registered in Saffron Walden, company number 17123705, one of 9 civil engineering contractors in Saffron Walden. Its next accounts are due at Companies House on 29 December 2027, and its first CT600 is due at HMRC on 28 March 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.

Accounts due
29 Dec 2027
in 442 days
For the period to 31 Mar 2027
CT600 due (first of two)
28 Mar 2028
in 532 days
Period 29 Mar 2026 to 28 Mar 2027
CT600 due (second of two)
31 Mar 2028
in 535 days
Period 29 Mar 2027 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 445 days
9 months and 1 day after the period end
Confirmation statement
11 Apr 2027
in 180 days

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Where NRG Rail Ltd is registered

NRG Rail Ltd's registered office on a map of the UK

The registered office is in Saffron Walden (CB11), in the Uttlesford local authority area, East of England. Show CB11 3EQ on a map.

Other trade companies in CB11

What happens if NRG Rail 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 29 December 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late30 Dec 2027 to 29 Jan 2028£150
1 to 3 months late30 Jan 2028 to 29 Mar 2028£375
3 to 6 months late30 Mar 2028 to 29 Jun 2028£750
More than 6 months lateFrom 30 Jun 2028£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2028£200
3 months late30 Jun 2028another £200
6 months late30 Sep 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2029another 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
17123705
Status
Active
Company type
Private limited company
Incorporated
29 March 2026
Registered office
37 Winstanley Road, Saffron Walden, CB11 3EQ
Nature of business
Construction of railways and underground railways (SIC 42120)
Construction of utility projects for electricity and telecommunications (SIC 42220)
Management consultancy activities other than financial management (SIC 70229)
Year end
31 March (accounting reference date)
Accounts type
No accounts filed yet

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 Saffron Walden

Other active civil engineering contractors registered in Saffron Walden.

All civil engineering contractors in Saffron Walden · All trades in Saffron Walden · Civil engineering across the UK

Frequently asked questions

When are NRG Rail Ltd's accounts due?

NRG Rail Ltd's next accounts are due at Companies House by 29 December 2027 (in 442 days), covering the period to 31 March 2027.

When is NRG Rail 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 28 March 2027, due by 28 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is NRG Rail Ltd still trading?

NRG Rail 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 NRG Rail Ltd do?

NRG Rail Ltd is registered under Construction of railways and underground railways (SIC 42120); Construction of utility projects for electricity and telecommunications (SIC 42220); Management consultancy activities other than financial management (SIC 70229).

How old is NRG Rail Ltd?

NRG Rail Ltd was incorporated on 29 March 2026, less than a year ago.

What is the penalty if NRG Rail 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 NRG Rail Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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