- Companies
- Machinery repair and installation
- Milton Keynes
- STM Aviation Limited
STM Aviation Limited
- Company number
- 12575758
- Incorporated
- 28 Apr 20206 years trading
- Registered office
- 1 South House Bond Avenue, Bletchley, Milton Keynes, MK1 1SW
- Nature of business
- Repair and maintenance of aircraft and spacecraft
STM Aviation Limited is a 6-year-old private limited company registered in Milton Keynes, company number 12575758, one of 149 machinery repair and installation companies in Milton Keynes. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £1 (+50%) on the year before, to £3.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £7,546 against £7,543 owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £3 | £7,546 | £7,543 | 0 | |
| 31 Mar 2025 | £2 | £21K | £21K | 0 | |
| 31 Mar 2024 | £2 | £22K | £22K | 0 | |
| 31 Mar 2023 | £2 | £12K | £12K | 0 | |
| 31 Mar 2022 | £3,364 | £37K | £33K | 0 | |
| 31 Mar 2021 | £1,114 | £27K | £26K | 0 |
Where STM Aviation Limited is registered
The registered office is in Milton Keynes (MK1), in the Milton Keynes local authority area, South East. Show MK1 1SW on a map.
Other trade companies in MK1
- JRN Technical Services LimitedMachinery repair and installation
- Inspection Werx LimitedMachinery repair and installation
- Es Signature LimitedMotor traders
- MK Prime MOT Autofix & Tyres Center LtdMechanics and garages
- Lakestone Landscaping LtdLandscapers and gardeners
- Chellaston Aviation LimitedMachinery repair and installation
- Steltrat Aviation Engineering LimitedMachinery repair and installation
- Steve's Autos LtdMechanics and garages
Shared registered office
41 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if STM Aviation 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 12575758
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 April 2020 (6 years ago)
- Registered office
- 1 South House Bond Avenue, Bletchley, Milton Keynes, MK1 1SW
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 3 May 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Milton Keynes
Other active machinery repair and installation companies registered in Milton Keynes.
- Storm Office Limited2011
- Summit Aero Solutions Limited2026
- Swissparts4U Ltd2024
- Taago Ltd2007
- Taff Engineering Ltd2015
- Technical Vending Support Limited2003
- Templar Engineering Limited2015
- The Epic Boating Company Ltd2021
All machinery repair and installation companies in Milton Keynes · All trades in Milton Keynes · Machinery repair and installation across the UK
Frequently asked questions
When are STM Aviation Limited's accounts due?
STM Aviation Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is STM Aviation Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is STM Aviation Limited still trading?
STM Aviation 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 STM Aviation Limited do?
STM Aviation Limited is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is STM Aviation Limited?
STM Aviation Limited was incorporated on 28 April 2020, 6 years ago.
What is the penalty if STM Aviation 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 STM Aviation 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.