1. Companies
  2. Civil engineering
  3. West Malling
  4. Mainland Civils and Infrastructure Ltd

Mainland Civils and Infrastructure Ltd

ActiveTotal exemption (full) accountsCivil engineeringWest Malling
Company number
15793286
Incorporated
21 Jun 20242 years trading
Registered office
Suite 3, 40 Churchill Square, Kings Hill, West Malling, Kent, ME19 4YU
Nature of business
Construction of other civil engineering projects n.e.c.
Accounts due in
199 days
30 Apr 2027
Net assets
£475
At 30 Jun 2025
Cash at bank
£85K
At 30 Jun 2025
Employees
0
Average during the year
Checked with Companies House 13 Oct 2026

Mainland Civils and Infrastructure Ltd is a 2-year-old private limited company registered in West Malling, company number 15793286, one of 14 civil engineering contractors in West Malling. Its next accounts are due at Companies House on 30 April 2027, and its first CT600 is due at HMRC on 30 June 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Apr 2027
in 199 days
For the period to 31 Jul 2026
CT600 due (first of two)
30 Jun 2027
in 260 days
Period 1 Jul 2025 to 30 Jun 2026
CT600 due (second of two)
31 Jul 2027
in 291 days
Period 1 Jul 2026 to 31 Jul 2026
Corporation tax payment
1 May 2027
in 200 days
9 months and 1 day after the period end
Confirmation statement
25 Sep 2026
Overdue by 18 days
Last made up to 11 Sep 2025

Is this your company?

File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.

File for Mainland Civils and Infrastructure Ltd

Or get a reminder before each deadline

Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.

Financial snapshot, 2025

From the balance sheet at 30 June 2025, as filed at Companies House.

Net assets
£475
Cash at bank
£85K
Current assets
£197K
Employees
0
Average during the year, including directors

Where Mainland Civils and Infrastructure Ltd is registered

Mainland Civils and Infrastructure Ltd's registered office on a map of the UK

The registered office is in West Malling (ME19), in the Tonbridge and Malling local authority area, South East. Show ME19 4YU on a map.

Other trade companies in ME19

Also registered at this address

15 other companies use the same registered office as Mainland Civils and Infrastructure Ltd.

What happens if Mainland Civils and Infrastructure 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 April 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 May 2027 to 31 May 2027£150
1 to 3 months late1 Jun 2027 to 31 Jul 2027£375
3 to 6 months late1 Aug 2027 to 31 Oct 2027£750
More than 6 months lateFrom 1 Nov 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Aug 2027£200
3 months late31 Oct 2027another £200
6 months late31 Jan 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jul 2028another 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
15793286
Status
Active
Company type
Private limited company
Incorporated
21 June 2024 (2 years ago)
Registered office
Suite 3, 40 Churchill Square, Kings Hill, West Malling, Kent, ME19 4YU
Nature of business
Construction of other civil engineering projects n.e.c. (SIC 42990)
Year end
31 July (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
30 June 2025
Last confirmation statement
11 September 2025
Previous names
Mainland Construction Ltd (until 1 Jul 2025)

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 West Malling

Other active civil engineering contractors registered in West Malling.

All civil engineering contractors in West Malling · All trades in West Malling · Civil engineering across the UK

Frequently asked questions

When are Mainland Civils and Infrastructure Ltd's accounts due?

Mainland Civils and Infrastructure Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.

When is Mainland Civils and Infrastructure 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 June 2026, due by 30 June 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 Mainland Civils and Infrastructure Ltd still trading?

Mainland Civils and Infrastructure Ltd is listed as active on the Companies House register (checked 13 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 Mainland Civils and Infrastructure Ltd do?

Mainland Civils and Infrastructure Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).

How old is Mainland Civils and Infrastructure Ltd?

Mainland Civils and Infrastructure Ltd was incorporated on 21 June 2024, 2 years ago.

What is the penalty if Mainland Civils and Infrastructure 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 Mainland Civils and Infrastructure 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, rechecked 13 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.

File accounts + CT600File now£49Let's talk