- Companies
- Specialist contractors
- Ipswich
- Sos Contracting Ltd
Sos Contracting Ltd
- Company number
- 13573389
- Incorporated
- 18 Aug 20215 years trading
- Registered office
- 5 Vermont Close, Ipswich, Suffolk, IP4 2SA
- Nature of business
- Other specialised construction activities n.e.c.
Sos Contracting Ltd is a 5-year-old private limited company registered in Ipswich, company number 13573389, one of 119 specialist construction companies in Ipswich. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Sos Contracting LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | 2 | ||||
| 31 Aug 2024 | £1,458 | £23K | £22K | 2 | |
| 31 Aug 2023 | £1,588 | £26K | £24K | 2 | |
| 31 Aug 2022 | £1,929 | £32K | £29K | 2 |
Where Sos Contracting Ltd is registered
The registered office is in Ipswich (IP4), in the Ipswich local authority area, East of England. Show IP4 2SA on a map.
Other trade companies in IP4
- Ukdk Clearances LtdGroundworks and demolition
- Allinall Ventures LtdMotor traders
- Laurselle Holdings LtdProperty developers
- Ipswich Autos LtdMotor traders
- D&D Driver LtdGroundworks and demolition
- T.E.D Electrical Contracting LtdElectricians
- L A East Construction LtdBuilders
- Phelps Electrical LtdElectricians
What happens if Sos Contracting 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 13573389
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 2021 (5 years ago)
- Registered office
- 5 Vermont Close, Ipswich, Suffolk, IP4 2SA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 13 August 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 Ipswich
Other active specialist construction companies registered in Ipswich.
- Spire Logic Ltd2026
- Starling Global Ltd2009
- Suffolk Building Group Limited2016
- Suffolk Ceilings Limited2012
- Suffolk Kitchen & Bathroom Co. Ltd2026
- Summit Civil Engineering Ltd2025
- TBC Drinks Ltd2020
- TD Build & Development Limited2026
All specialist construction companies in Ipswich · All trades in Ipswich · Specialist contractors across the UK
Frequently asked questions
When are Sos Contracting Ltd's accounts due?
Sos Contracting Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sos Contracting Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sos Contracting Ltd still trading?
Sos Contracting 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 Sos Contracting Ltd do?
Sos Contracting Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Sos Contracting Ltd?
Sos Contracting Ltd was incorporated on 18 August 2021, 5 years ago.
What is the penalty if Sos Contracting 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 Sos Contracting 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.