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  4. RNC Consult Ltd

RNC Consult Ltd

ActiveNo accounts filed yet accountsCivil engineeringIrvine
Company number
SC877230
Incorporated
30 Jan 2026
Registered office
3 Old Smithy, Springside, Irvine, KA11 3BF
Nature of business
Construction of water projects; Construction of other civil engineering projects n.e.c.
Accounts due in
382 days
30 Oct 2027
From the Companies House register, 1 Oct 2026

RNC Consult Ltd is a newly incorporated private limited company registered in Irvine, company number SC877230, one of 14 civil engineering contractors in Irvine. Its next accounts are due at Companies House on 30 October 2027, and its first CT600 is due at HMRC on 29 January 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
30 Oct 2027
in 382 days
For the period to 31 Jan 2027
CT600 due (first of two)
29 Jan 2028
in 473 days
Period 30 Jan 2026 to 29 Jan 2027
CT600 due (second of two)
31 Jan 2028
in 475 days
Period 30 Jan 2027 to 31 Jan 2027
Corporation tax payment
1 Nov 2027
in 384 days
9 months and 1 day after the period end
Confirmation statement
12 Feb 2027
in 122 days

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Where RNC Consult Ltd is registered

RNC Consult Ltd's registered office on a map of the UK

The registered office is in Irvine (KA11), in the North Ayrshire local authority area, Scotland. Show KA11 3BF on a map.

Other trade companies in KA11

What happens if RNC Consult 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 30 October 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late31 Oct 2027 to 30 Nov 2027£150
1 to 3 months late1 Dec 2027 to 30 Jan 2028£375
3 to 6 months late31 Jan 2028 to 30 Apr 2028£750
More than 6 months lateFrom 1 May 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Feb 2028£200
3 months late30 Apr 2028another £200
6 months late31 Jul 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 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
SC877230
Status
Active
Company type
Private limited company
Incorporated
30 January 2026
Registered office
3 Old Smithy, Springside, Irvine, KA11 3BF
Nature of business
Construction of water projects (SIC 42910)
Construction of other civil engineering projects n.e.c. (SIC 42990)
Year end
31 January (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 Irvine

Other active civil engineering contractors registered in Irvine.

All civil engineering contractors in Irvine · All trades in Irvine · Civil engineering across the UK

Frequently asked questions

When are RNC Consult Ltd's accounts due?

RNC Consult Ltd's next accounts are due at Companies House by 30 October 2027 (in 382 days), covering the period to 31 January 2027.

When is RNC Consult 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 29 January 2027, due by 29 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is RNC Consult Ltd still trading?

RNC Consult 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 RNC Consult Ltd do?

RNC Consult Ltd is registered under Construction of water projects (SIC 42910); Construction of other civil engineering projects n.e.c. (SIC 42990).

How old is RNC Consult Ltd?

RNC Consult Ltd was incorporated on 30 January 2026, less than a year ago.

What is the penalty if RNC Consult 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 RNC Consult 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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