- Companies
- Finishing trades
- Sheffield
- Mack Construction Ltd
Mack Construction Ltd
- Company number
- 10735394
- Incorporated
- 21 Apr 20179 years trading
- Registered office
- 55 Wollaton Road, Sheffield, South Yorkshire, S17 4LF
- Nature of business
- Other building completion and finishing
Mack Construction Ltd is a 9-year-old private limited company registered in Sheffield, company number 10735394, one of 232 building finishing companies in Sheffield. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Mack Construction Ltd is registered
The registered office is in Sheffield (S17), in the Sheffield local authority area, Yorkshire and The Humber. Show S17 4LF on a map.
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What happens if Mack Construction 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10735394
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 April 2017 (9 years ago)
- Registered office
- 55 Wollaton Road, Sheffield, South Yorkshire, S17 4LF
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 6 May 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 Sheffield
Other active building finishing companies registered in Sheffield.
- Major Brothers Limited2015
- Mamrs Maintenance Services Ltd2026
- Management Project Solutions Ltd2010
- MBS Construction (Mosborough) Limited2003
- MCSL Contracts Limited2016
- Meli Construction Limited2023
- Merlin Design & Build Ltd2025
- Met-Tec Systems Ltd2015
All building finishing companies in Sheffield · All trades in Sheffield · Finishing trades across the UK
Frequently asked questions
When are Mack Construction Ltd's accounts due?
Mack Construction Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Mack Construction Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Mack Construction Ltd still trading?
Mack Construction 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 Mack Construction Ltd do?
Mack Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Mack Construction Ltd?
Mack Construction Ltd was incorporated on 21 April 2017, 9 years ago.
What is the penalty if Mack Construction 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 Mack Construction 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.