- Companies
- Plumbers and heating engineers
- Swindon
- Isaac Os Gas Services Ltd
Isaac Os Gas Services Ltd
- Company number
- 16336655
- Incorporated
- 24 Mar 20251 year trading
- Registered office
- 14 Deerhurst Way, Toothill, Swindon, SN5 8AF
- Nature of business
- Plumbing, heat and air-conditioning installation
Isaac Os Gas Services Ltd is a 1-year-old private limited company registered in Swindon, company number 16336655, one of 164 plumbing and heating companies in Swindon. Its next accounts are due at Companies House on 24 December 2026, and its first CT600 is due at HMRC on 23 March 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 Isaac Os Gas Services Ltd is registered
The registered office is in Swindon (SN5), in the Swindon local authority area, South West. Show SN5 8AF on a map.
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What happens if Isaac Os Gas Services 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 24 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Dec 2026 to 24 Jan 2027 | £150 |
| 1 to 3 months late | 25 Jan 2027 to 24 Mar 2027 | £375 |
| 3 to 6 months late | 25 Mar 2027 to 24 Jun 2027 | £750 |
| More than 6 months late | From 25 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16336655
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 March 2025 (1 year ago)
- Registered office
- 14 Deerhurst Way, Toothill, Swindon, SN5 8AF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 23 March 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Swindon
Other active plumbing and heating companies registered in Swindon.
- J N Gas Ltd2021
- J Smith Plumbing & Heating (Swindon) Ltd2022
- Janson's Gas Services Limited2008
- Jarren Heating Ltd2019
- JD Installations Ltd2012
- Jim Will Plumbing and Heating Limited2017
- JJ'S Plumbing & Heating Limited2017
- JR Heat Ltd2023
All plumbing and heating companies in Swindon · All trades in Swindon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Isaac Os Gas Services Ltd's accounts due?
Isaac Os Gas Services Ltd's next accounts are due at Companies House by 24 December 2026 (in 72 days), covering the period to 31 March 2026.
When is Isaac Os Gas Services 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 23 March 2026, due by 23 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Isaac Os Gas Services Ltd still trading?
Isaac Os Gas Services 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 Isaac Os Gas Services Ltd do?
Isaac Os Gas Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Isaac Os Gas Services Ltd?
Isaac Os Gas Services Ltd was incorporated on 24 March 2025, 1 year ago.
What is the penalty if Isaac Os Gas Services 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 Isaac Os Gas Services 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.