- Companies
- Facilities management
- Spalding
- Mars K9 Security Ltd
Mars K9 Security Ltd
- Company number
- 15073940
- Incorporated
- 15 Aug 20233 years trading
- Registered office
- Valencia Cranesgate North, Whaplode ST. Catherines, Spalding, PE12 6SR
- Nature of business
- Combined facilities support activities
Mars K9 Security Ltd is a 3-year-old private limited company registered in Spalding, company number 15073940, one of 7 facilities management companies in Spalding. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 up £10K (+619.2%) on the year before, to £12K.
- Current assets of £15K against £170 owed within a year: more than 10 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £12K | £15K | £170 | 2 | |
| 31 Aug 2024 | £1,628 | £9,152 | 2 |
Where Mars K9 Security Ltd is registered
The registered office is in Spalding (PE12), in the South Holland local authority area, East Midlands. Show PE12 6SR on a map.
Other trade companies in PE12
- Elvro LtdElectricians
- RJS Motors of Whaplode LtdMechanics and garages
- Hargate Engineering Services LtdMachinery repair and installation
- Avant Property and Development LimitedProperty developers
- Pioneer Solutions Group LtdBuilders
- UK Temporary Kitchens LtdInstallers
- Barry Disdel Fencing and Landscape Specialist LtdLandscapers and gardeners
- HSG Electrical LtdElectricians
Also registered at this address
1 other company uses the same registered office as Mars K9 Security Ltd.
- Ov Facility Services LimitedFacilities management
What happens if Mars K9 Security 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15073940
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 August 2023 (3 years ago)
- Registered office
- Valencia Cranesgate North, Whaplode ST. Catherines, Spalding, PE12 6SR
- Nature of business
- Combined facilities support activities (SIC 81100)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 25 October 2025
Filing notes for facilities management companies
Facilities management companies usually invoice on contract, so accrued income and deferred income matter at the year end.
Similar companies in Spalding
Other active facilities management companies registered in Spalding.
- Ov Facility Services Limited2025
- Oxbury Property Maintenance Ltd2021
- Primeserve Ltd2016
- Tech Inspections Ltd2013
- Garners Wharf Management Company Limited1987
- John Smith Property Maintenance Ltd2009
All facilities management companies in Spalding · All trades in Spalding · Facilities management across the UK
Frequently asked questions
When are Mars K9 Security Ltd's accounts due?
Mars K9 Security Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Mars K9 Security Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Mars K9 Security Ltd still trading?
Mars K9 Security 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 Mars K9 Security Ltd do?
Mars K9 Security Ltd is registered under Combined facilities support activities (SIC 81100).
How old is Mars K9 Security Ltd?
Mars K9 Security Ltd was incorporated on 15 August 2023, 3 years ago.
What is the penalty if Mars K9 Security 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 Mars K9 Security 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.