- Companies
- Finishing trades
- Holyhead
- MC Williams Building Contractors Limited
MC Williams Building Contractors Limited
- Company number
- 13964524
- Incorporated
- 9 Mar 20224 years trading
- Registered office
- Morfa Bryn Y Mor Road, Valley, Holyhead, Anglesey, LL65 3EY
- Nature of business
- Other building completion and finishing
MC Williams Building Contractors Limited is a 4-year-old private limited company registered in Holyhead, company number 13964524, one of the UK's building finishing companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £9,149 (+270.5%) on the year before, to £13K.
- Current assets of £12K against £7,683 owed within a year: 1.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £13K | £12K | £7,683 | 0 | |
| 31 Mar 2024 | £3,382 | £8,782 | £5,545 | 1 | |
| 31 Mar 2023 | -£250 | £100 | £150 | 2 |
Where MC Williams Building Contractors Limited is registered
The registered office is in Holyhead (LL65), in the Isle of Anglesey local authority area, Wales. Show LL65 3EY on a map.
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What happens if MC Williams Building Contractors 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13964524
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2022 (4 years ago)
- Registered office
- Morfa Bryn Y Mor Road, Valley, Holyhead, Anglesey, LL65 3EY
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 8 March 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Holyhead
Other active building finishing companies registered in Holyhead.
All building finishing companies in Holyhead · All trades in Holyhead · Finishing trades across the UK
Frequently asked questions
When are MC Williams Building Contractors Limited's accounts due?
MC Williams Building Contractors Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is MC Williams Building Contractors Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is MC Williams Building Contractors Limited still trading?
MC Williams Building Contractors 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 MC Williams Building Contractors Limited do?
MC Williams Building Contractors Limited is registered under Other building completion and finishing (SIC 43390).
How old is MC Williams Building Contractors Limited?
MC Williams Building Contractors Limited was incorporated on 9 March 2022, 4 years ago.
What is the penalty if MC Williams Building Contractors 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 MC Williams Building Contractors 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.