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- Sebast Ltd
Company profile · Finishing trades
Sebast Ltd
Sebast Ltd is a newly incorporated private limited company registered in Watford, company number 17362429, one of 135 building finishing companies in Watford. Its next accounts are due at Companies House on 27 April 2028, and its first CT600 is due at HMRC on 26 July 2028.
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?
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Where Sebast Ltd is registered
The registered office is in Watford (WD25), in the Watford local authority area, East of England. Show WD25 9DJ on a map.
Other trade companies in WD25
- Ardel Construction LimitedBuilders
- Velocity Mechanical LtdPlumbers and heating engineers
- Jpjcm LimitedFinishing trades
- Mix & Go LtdSpecialist contractors
- Colney Prestige Autos LtdMotor traders
- Prestige Garden Services LtdLandscapers and gardeners
- Destinyd LtdMachinery repair and installation
- Leaf Space LimitedFinishing trades
What happens if Sebast 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 27 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Apr 2028 to 27 May 2028 | £150 |
| 1 to 3 months late | 28 May 2028 to 27 Jul 2028 | £375 |
| 3 to 6 months late | 28 Jul 2028 to 27 Oct 2028 | £750 |
| More than 6 months late | From 28 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17362429
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2026
- Registered office
- 91A Westlea Avenue, Watford, WD25 9DJ
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Watford
Other active building finishing companies registered in Watford.
- Semper Porro Property Maintenance Ltd2026
- Sgo Design and Build Ltd2025
- Silvy Building Ltd2020
- Simply Drainage and Property Services Ltd2020
- Sowan Builders Ltd2024
- Stables Block Ltd2015
- Sterex Ltd2021
- Surveys for London Limited2013
All building finishing companies in Watford · All trades in Watford · Finishing trades across the UK
Frequently asked questions
When are Sebast Ltd's accounts due?
Sebast Ltd's next accounts are due at Companies House by 27 April 2028 (in 563 days), covering the period to 31 July 2027.
When is Sebast 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 26 July 2027, due by 26 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sebast Ltd still trading?
Sebast 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 Sebast Ltd do?
Sebast Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Sebast Ltd?
Sebast Ltd was incorporated on 27 July 2026, less than a year ago.
What is the penalty if Sebast 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 Sebast 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.