Company profile · Builders
A Mason Limited
A Mason Limited is a 13-year-old private limited company registered in Rotherham, company number 08714247, one of 222 building contractors in Rotherham. Its next accounts are due at Companies House on 29 June 2027, and the CT600 for the period to 29 September 2026 is due at HMRC on 29 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 September 2025, as filed at Companies House.
A Mason Limited over the years
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 £10K (+101.6%) on the year before, to £161.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £41K against £41K owed within a year: 1.0 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £161 | £41K | £41K | 3 | |
| 30 Sep 2024 | -£10K | £21K | £31K | 3 | |
| 30 Sep 2023 | £217 | £15K | £15K | 3 | |
| 30 Sep 2022 | £194 | £18K | £18K | 3 | |
| 30 Sep 2021 | -£8,842 | £6,785 | £25K | 3 | |
| 30 Sep 2020 | -£15K | £1,938 | £27K | 2 | |
| 30 Sep 2019 | -£3,805 | £13K | £24K | 2 | |
| 30 Sep 2018 | -£2,110 | £1,201 | £11K | 2 | |
| 30 Sep 2017 | -£3,368 | £6,100 | £18K | ||
| 30 Sep 2016 | -£7,070 | £3,604 | £13K |
Where A Mason Limited is registered
The registered office is in Rotherham (S63), in the Rotherham local authority area, Yorkshire and The Humber. Show S63 7TD on a map.
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What happens if A Mason 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 29 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jun 2027 to 29 Jul 2027 | £150 |
| 1 to 3 months late | 30 Jul 2027 to 29 Sep 2027 | £375 |
| 3 to 6 months late | 30 Sep 2027 to 29 Dec 2027 | £750 |
| More than 6 months late | From 30 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Sep 2027 | £200 |
| 3 months late | 29 Dec 2027 | another £200 |
| 6 months late | 29 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Sep 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
- 08714247
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 October 2013 (13 years ago)
- Registered office
- 70 Quarry Hill Road, Wath-Upon-Dearne, Rotherham, South Yorkshire, S63 7TD
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 29 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 20 September 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Rotherham
Other active building contractors registered in Rotherham.
- A W Cladding Limited2020
- A&T Services Services Ltd2026
- Ab Design & Build Yorkshire Ltd2024
- Ac Property Developments (Yorkshire) Ltd2018
- Adam Russell Construction Ltd2023
- Adapt Brickwork Ltd2024
- Ajlcladding Ltd2018
- Ajlr Cladding Ltd2026
All building contractors in Rotherham · All trades in Rotherham · Builders across the UK
Frequently asked questions
When are A Mason Limited's accounts due?
A Mason Limited's next accounts are due at Companies House by 29 June 2027 (in 260 days), covering the period to 29 September 2026.
When is A Mason Limited's CT600 due?
The CT600 for the period to 29 September 2026 is due at HMRC by 29 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 June 2027.
Is A Mason Limited still trading?
A Mason Limited is listed as active on the Companies House register (checked 12 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 A Mason Limited do?
A Mason Limited is registered under Construction of commercial buildings (SIC 41201).
How old is A Mason Limited?
A Mason Limited was incorporated on 2 October 2013, 13 years ago.
What is the penalty if A Mason 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 A Mason Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.