- Companies
- Specialist contractors
- Cardiff
- Main-Line Access Ltd
Main-Line Access Ltd
- Company number
- 16833795
- Incorporated
- 5 Nov 2025
- Registered office
- 8 the Retreat, Cardiff, CF23 5QZ
- Nature of business
- Other specialised construction activities n.e.c.
Main-Line Access Ltd is a newly incorporated private limited company registered in Cardiff, company number 16833795, one of 173 specialist construction companies in Cardiff. Its next accounts are due at Companies House on 5 August 2027, and its first CT600 is due at HMRC on 4 November 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 Main-Line Access Ltd is registered
The registered office is in Cardiff (CF23), in the Cardiff local authority area, Wales. Show CF23 5QZ on a map.
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- 1ST Choice Accident Repair Centre (Yeovil) LtdMechanics and garages
- Wide Transport LtdMotor traders
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- Lex Roofing Solutions LtdRoofers
- Taxissories LtdMotor traders
What happens if Main-Line Access 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 5 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Aug 2027 to 5 Sep 2027 | £150 |
| 1 to 3 months late | 6 Sep 2027 to 5 Nov 2027 | £375 |
| 3 to 6 months late | 6 Nov 2027 to 5 Feb 2028 | £750 |
| More than 6 months late | From 6 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16833795
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 November 2025
- Registered office
- 8 the Retreat, Cardiff, CF23 5QZ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
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 Cardiff
Other active specialist construction companies registered in Cardiff.
- Mandrew Construction Limited2014
- Marius & David Limited2015
- Mark James Landscaping Contractors Limited2016
- Mark Rand Site Services Limited2017
- MC Property Matanice Ltd2023
- MJC Consulting Group Ltd2025
- Morgan Project Solutions Ltd.2012
- N G Building Contractors Limited2003
All specialist construction companies in Cardiff · All trades in Cardiff · Specialist contractors across the UK
Frequently asked questions
When are Main-Line Access Ltd's accounts due?
Main-Line Access Ltd's next accounts are due at Companies House by 5 August 2027 (in 296 days), covering the period to 30 November 2026.
When is Main-Line Access 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 4 November 2026, due by 4 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Main-Line Access Ltd still trading?
Main-Line Access 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 Main-Line Access Ltd do?
Main-Line Access Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Main-Line Access Ltd?
Main-Line Access Ltd was incorporated on 5 November 2025, less than a year ago.
What is the penalty if Main-Line Access 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 Main-Line Access 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.