- Companies
- Specialist contractors
- Sutton
- Smi 77 Limited
Smi 77 Limited
- Company number
- 12430137
- Incorporated
- 28 Jan 20206 years trading
- Registered office
- Flat 10 Portland Court, 100 Grove Road, Sutton, SM1 2AL
- Nature of business
- Other specialised construction activities n.e.c.
Smi 77 Limited is a 6-year-old private limited company registered in Sutton, company number 12430137, one of 86 specialist construction companies in Sutton. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets unchanged on the year before, at £127.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £4,929 against £4,802 owed within a year: 1.0 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £127 | £3,737 | £4,929 | £4,802 | 2 |
| 31 Jan 2025 | £127 | £3,220 | £3,389 | £3,262 | 1 |
| 31 Jan 2024 | £151 | £4,492 | £4,740 | £4,589 | 1 |
| 31 Jan 2023 | £178 | £13K | £14K | £14K | 1 |
| 31 Jan 2022 | £3,390 | £6,439 | £6,789 | £3,399 | 1 |
| 31 Jan 2021 | £2,505 | £3,336 | £5,061 | £2,556 | 0 |
Where Smi 77 Limited is registered
The registered office is in Sutton (SM1), in the Sutton local authority area, London. Show SM1 2AL on a map.
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What happens if Smi 77 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12430137
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 January 2020 (6 years ago)
- Registered office
- Flat 10 Portland Court, 100 Grove Road, Sutton, SM1 2AL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 11 January 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Sutton
Other active specialist construction companies registered in Sutton.
- South Thames Scaffolding Limited2006
- Speedy Concrete Pumping Services Ltd2020
- T Lyons Brickwork Ltd2018
- T.K.R. Project Solutions Ltd2011
- Tradezone (South East) Limited2004
- Traleda Construction Limited1972
- Tutrakan Ltd2015
- Underpinning London Limited2012
All specialist construction companies in Sutton · All trades in Sutton · Specialist contractors across the UK
Frequently asked questions
When are Smi 77 Limited's accounts due?
Smi 77 Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Smi 77 Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Smi 77 Limited still trading?
Smi 77 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 Smi 77 Limited do?
Smi 77 Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Smi 77 Limited?
Smi 77 Limited was incorporated on 28 January 2020, 6 years ago.
What is the penalty if Smi 77 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 Smi 77 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.