- Companies
- Installers
- Derby
- Tinmar Limited
Tinmar Limited
- Company number
- 12330184
- Incorporated
- 25 Nov 20196 years trading
- Registered office
- 67 Silver Hill Road, Derby, Derbyshire, DE23 6UL
- Nature of business
- Other construction installation; Other retail sale of food in specialised stores; Unlicensed carrier
Tinmar Limited is a 6-year-old private limited company registered in Derby, company number 12330184, one of 90 installation companies (insulation, lifts, shutters and similar) in Derby. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £2,425 (-53.6%) on the year before, to £2,100.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £5,600 against £3,618 owed within a year: 1.5 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 Nov 2025 | £2,100 | £5,600 | £3,618 | 1 | |
| 30 Nov 2024 | £4,525 | £4,998 | £9,758 | 1 | |
| 30 Nov 2023 | £7,165 | £7,130 | £317 | 1 | |
| 30 Nov 2022 | £4,901 | £2,358 | £7,259 | 1 | |
| 30 Nov 2021 | £71 | £3,254 | £3,183 | 1 | |
| 30 Nov 2020 | £100 | £100 | £0 | 0 |
Where Tinmar Limited is registered
The registered office is in Derby (DE23), in the Derby local authority area, East Midlands. Show DE23 6UL on a map.
Other trade companies in DE23
- Bart Fix and Finish LtdInstallers
- BDF Construction LtdBuilders
- Aichi Autos LtdMotor traders
- MNK Group LtdMotor traders
- Rising Star Trading Derby LimitedMotor traders
- Tap Stop Civils & Plumbing LimitedPlumbers and heating engineers
- German Salvage & Repairs LtdMechanics and garages
- RDX Design LimitedBuilders
What happens if Tinmar 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 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
- 12330184
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2019 (6 years ago)
- Registered office
- 67 Silver Hill Road, Derby, Derbyshire, DE23 6UL
- Nature of business
- Other construction installation (SIC 43290)
Other retail sale of food in specialised stores (SIC 47290)
Unlicensed carrier (SIC 53202) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 15 September 2026
- Previous names
- Tina's Shop Limited (until 16 Apr 2021)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Derby
Other active installation companies (insulation, lifts, shutters and similar) registered in Derby.
- TMB Spec Ltd2026
- Total Fix Tech Ltd2025
- Trend Retail Solutions Limited2011
- Trent Doors Ltd2024
- UK Hempcrete Ltd2015
- Westwood Paving Limited2001
- Wreckerz Ltd2024
- WW Windows Limited2009
All installation companies (insulation, lifts, shutters and similar) in Derby · All trades in Derby · Installers across the UK
Frequently asked questions
When are Tinmar Limited's accounts due?
Tinmar Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Tinmar Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Tinmar Limited still trading?
Tinmar 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 Tinmar Limited do?
Tinmar Limited is registered under Other construction installation (SIC 43290); Other retail sale of food in specialised stores (SIC 47290); Unlicensed carrier (SIC 53202).
How old is Tinmar Limited?
Tinmar Limited was incorporated on 25 November 2019, 6 years ago.
What is the penalty if Tinmar 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 Tinmar 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.