- Companies
- Installers
- Doncaster
- Zolmar Improvement Ltd
Zolmar Improvement Ltd
- Company number
- 16823971
- Incorporated
- 31 Oct 2025
- Registered office
- 11 Frank Road, Doncaster, DN5 9SY
- Nature of business
- Other construction installation; Plastering; Joinery installation
Zolmar Improvement Ltd is a newly incorporated private limited company registered in Doncaster, company number 16823971, one of 128 installation companies (insulation, lifts, shutters and similar) in Doncaster. Its next accounts are due at Companies House on 31 July 2027, and its first CT600 is due at HMRC on 30 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Zolmar Improvement LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Zolmar Improvement Ltd is registered
The registered office is in Doncaster (DN5), in the Doncaster local authority area, Yorkshire and The Humber. Show DN5 9SY on a map.
Other trade companies in DN5
- D3 Lifestyle Group LimitedMotor traders
- Thurnscoe Bungalows LimitedBuilders
- Mastercraft Roofing and Home Improvements LtdRoofers
- Just Vags LtdMechanics and garages
- Wilson Decorators (Doncaster) LtdPainters and decorators
- Surface Groundworks LimitedLandscapers and gardeners
- Vaulto Automotive Customisation LtdMechanics and garages
- GR33N Group (G3) LtdProperty developers
What happens if Zolmar Improvement 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16823971
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 October 2025
- Registered office
- 11 Frank Road, Doncaster, DN5 9SY
- Nature of business
- Other construction installation (SIC 43290)
Plastering (SIC 43310)
Joinery installation (SIC 43320) - Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
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 Doncaster
Other active installation companies (insulation, lifts, shutters and similar) registered in Doncaster.
- 731 Energy Consultancy Ltd2023
- A & H Fencing Services Ltd2021
- Acorn Designer Driveways Limited2021
- Apex Rope Access Limited2024
- Apexcontracting Ltd2025
- Apollo Projects Ltd2025
- Artemis Builders Limited2026
- As Construction(Northern) Limited2025
All installation companies (insulation, lifts, shutters and similar) in Doncaster · All trades in Doncaster · Installers across the UK
Frequently asked questions
When are Zolmar Improvement Ltd's accounts due?
Zolmar Improvement Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Zolmar Improvement Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 October 2026, due by 30 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Zolmar Improvement Ltd still trading?
Zolmar Improvement 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 Zolmar Improvement Ltd do?
Zolmar Improvement Ltd is registered under Other construction installation (SIC 43290); Plastering (SIC 43310); Joinery installation (SIC 43320).
How old is Zolmar Improvement Ltd?
Zolmar Improvement Ltd was incorporated on 31 October 2025, less than a year ago.
What is the penalty if Zolmar Improvement 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 Zolmar Improvement 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.