- Companies
- Finishing trades
- London
- Smart Port Systems Ltd
Smart Port Systems Ltd
- Company number
- 17244898
- Incorporated
- 27 May 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other building completion and finishing
Smart Port Systems Ltd is a newly incorporated private limited company registered in London, company number 17244898, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 27 February 2028, and its first CT600 is due at HMRC on 26 May 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.
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Where Smart Port Systems Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
Other trade companies in EC1V
- Cardiff Electrical Solutions LtdElectricians
- Edemis Construction LtdBuilders
- Zaylan LtdProperty developers
- Pronto Roofing and Construction LtdRoofers
- Instal Systems LtdPlumbers and heating engineers
- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
Shared registered office
2,436 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 Smart Port Systems 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 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Feb 2028 to 27 Mar 2028 | £150 |
| 1 to 3 months late | 28 Mar 2028 to 27 May 2028 | £375 |
| 3 to 6 months late | 28 May 2028 to 27 Aug 2028 | £750 |
| More than 6 months late | From 28 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17244898
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 May 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 May (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.
- Smart Space Cre8 Ltd2026
- Smartbuilder & Demolition Ltd2024
- Smily Ltd2026
- Smir SupervisÃO Montagem Isolamento RefratÁRio Ltd2025
- Smith & Rose Ltd2022
- SMS Building Services Ltd2026
- Snack4U Ltd2022
- Snagging to Shining Service Ltd2026
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Smart Port Systems Ltd's accounts due?
Smart Port Systems Ltd's next accounts are due at Companies House by 27 February 2028 (in 502 days), covering the period to 31 May 2027.
When is Smart Port Systems 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 May 2027, due by 26 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Smart Port Systems Ltd still trading?
Smart Port Systems 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 Smart Port Systems Ltd do?
Smart Port Systems Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Smart Port Systems Ltd?
Smart Port Systems Ltd was incorporated on 27 May 2026, less than a year ago.
What is the penalty if Smart Port Systems 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 Smart Port Systems 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.