- Companies
- Finishing trades
- Rochdale
- Simple A Mastic Ltd
Simple A Mastic Ltd
- Company number
- 12221803
- Incorporated
- 23 Sep 20197 years trading
- Registered office
- 31 Constable Drive, Rochdale, OL11 2AS
- Nature of business
- Other building completion and finishing
Simple A Mastic Ltd is a 7-year-old private limited company registered in Rochdale, company number 12221803, one of 56 building finishing companies in Rochdale. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 down £367 (-100%) on the year before, to -£734.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £820 against £804 owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£734 | £820 | £820 | £804 | 1 |
| 30 Sep 2024 | -£367 | £239 | £1,383 | 1 | |
| 30 Sep 2023 | £67 | £3,083 | £67 | 1 | |
| 30 Sep 2022 | £68 | £98 | £3,818 | 1 | |
| 30 Sep 2021 | £122 | £122 | £0 | 1 | |
| 30 Sep 2020 | £1,265 | £1,656 | £391 | 0 |
Where Simple A Mastic Ltd is registered
The registered office is in Rochdale (OL11), in the Rochdale local authority area, North West. Show OL11 2AS on a map.
Other trade companies in OL11
- H-Techs Installations LtdInstallers
- Acedealers LimitedMotor traders
- Maks Property Services LtdBuilders
- Risewell Properties LtdProperty developers
- Northern Commercials MCR LtdMechanics and garages
- Green One Electrical LtdElectricians
- Sale Body Shop LtdMechanics and garages
- Swistrepairs LtdRepair services
What happens if Simple A Mastic 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 12221803
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2019 (7 years ago)
- Registered office
- 31 Constable Drive, Rochdale, OL11 2AS
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 22 September 2026
- Previous names
- Simple A Seal Ltd (until 30 Sep 2019)
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 Rochdale
Other active building finishing companies registered in Rochdale.
- SRS Remedial Solutions Ltd2018
- Sure IT Fixed Ltd2024
- Tenmen Ltd2025
- Unique Aluminium Windows Limited2024
- 3 Way Building Services Limited2001
- 360 S-Home Ltd2021
- 3Way Civils & Maintenance Solutions Limited2005
- Adestyvn Builds Limited2019
All building finishing companies in Rochdale · All trades in Rochdale · Finishing trades across the UK
Frequently asked questions
When are Simple A Mastic Ltd's accounts due?
Simple A Mastic Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Simple A Mastic Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Simple A Mastic Ltd still trading?
Simple A Mastic Ltd 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 Simple A Mastic Ltd do?
Simple A Mastic Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Simple A Mastic Ltd?
Simple A Mastic Ltd was incorporated on 23 September 2019, 7 years ago.
What is the penalty if Simple A Mastic 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 Simple A Mastic Ltd 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.