- Companies
- Machinery repair and installation
- Slough
- SD Aviation Ltd
SD Aviation Ltd
- Company number
- 16494209
- Incorporated
- 3 Jun 20251 year trading
- Registered office
- 27 Lent Green Lane, Burnham, Slough, SL1 7AS
- Nature of business
- Repair and maintenance of aircraft and spacecraft
SD Aviation Ltd is a 1-year-old private limited company registered in Slough, company number 16494209, one of 62 machinery repair and installation companies in Slough. Its next accounts are due at Companies House on 3 March 2027, and its first CT600 is due at HMRC on 2 June 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.
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Where SD Aviation Ltd is registered
The registered office is in Slough (SL1), in the Buckinghamshire local authority area, South East. Show SL1 7AS on a map.
Other trade companies in SL1
- Yanky Construction LtdBuilders
- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
What happens if SD Aviation 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 3 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Mar 2027 to 3 Apr 2027 | £150 |
| 1 to 3 months late | 4 Apr 2027 to 3 Jun 2027 | £375 |
| 3 to 6 months late | 4 Jun 2027 to 3 Sep 2027 | £750 |
| More than 6 months late | From 4 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 16494209
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 June 2025 (1 year ago)
- Registered office
- 27 Lent Green Lane, Burnham, Slough, SL1 7AS
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 2 June 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 Slough
Other active machinery repair and installation companies registered in Slough.
- Simply A V Ltd2008
- SJS Rams Ltd2018
- SM Appliance Repair Services Limited2026
- Soltronics Ltd2020
- Southern Installations Limited2025
- Startec Limited2005
- Sultani Autobody Ltd2026
- Technical Xerographics Ltd2014
All machinery repair and installation companies in Slough · All trades in Slough · Machinery repair and installation across the UK
Frequently asked questions
When are SD Aviation Ltd's accounts due?
SD Aviation Ltd's next accounts are due at Companies House by 3 March 2027 (in 141 days), covering the period to 30 June 2026.
When is SD Aviation 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 2 June 2026, due by 2 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is SD Aviation Ltd still trading?
SD Aviation 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 SD Aviation Ltd do?
SD Aviation Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is SD Aviation Ltd?
SD Aviation Ltd was incorporated on 3 June 2025, 1 year ago.
What is the penalty if SD Aviation 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 SD Aviation 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.