- Companies
- Finishing trades
- London
- Seamless Line Limited
Seamless Line Limited
- Company number
- 16816639
- Incorporated
- 28 Oct 2025
- Registered office
- 10 Clayton Close, London, E6 5QD
- Nature of business
- Other building completion and finishing
Seamless Line Limited is a newly incorporated private limited company registered in London, company number 16816639, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 28 July 2027, and its first CT600 is due at HMRC on 27 October 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 Seamless Line Limited is registered
The registered office is in London (E6), in the Newham local authority area, London. Show E6 5QD on a map.
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What happens if Seamless Line 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 28 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Jul 2027 to 28 Aug 2027 | £150 |
| 1 to 3 months late | 29 Aug 2027 to 28 Oct 2027 | £375 |
| 3 to 6 months late | 29 Oct 2027 to 28 Jan 2028 | £750 |
| More than 6 months late | From 29 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16816639
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 October 2025
- Registered office
- 10 Clayton Close, London, E6 5QD
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 October (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 London
Other active building finishing companies registered in London.
- Seba Services Inc Limited2015
- Secure City Limited2014
- Secure Lock Services Ltd2026
- Securitap Limited2024
- Segment Property Services Limited2015
- Selected Build Limited2015
- Selective Investments Ltd2019
- Selmani Building Limited2019
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Seamless Line Limited's accounts due?
Seamless Line Limited's next accounts are due at Companies House by 28 July 2027 (in 289 days), covering the period to 31 October 2026.
When is Seamless Line Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 October 2026, due by 27 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seamless Line Limited still trading?
Seamless Line 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 Seamless Line Limited do?
Seamless Line Limited is registered under Other building completion and finishing (SIC 43390).
How old is Seamless Line Limited?
Seamless Line Limited was incorporated on 28 October 2025, less than a year ago.
What is the penalty if Seamless Line 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 Seamless Line 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.