- Companies
- Builders
- Gainsborough
- Sigma Construction Lincs Ltd
Sigma Construction Lincs Ltd
- Company number
- 14365301
- Incorporated
- 20 Sep 20224 years trading
- Registered office
- Office 1, Engine House, Marshalls Yard, Gainsborough, DN21 2NA
- Nature of business
- Construction of commercial buildings
Sigma Construction Lincs Ltd is a 4-year-old private limited company registered in Gainsborough, company number 14365301, one of 37 building contractors in Gainsborough. Companies House shows its accounts as overdue: they were due on 17 September 2026.
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 up £12K on the year before, to £12K.
- Current assets of £3,601 against £2,107 owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2023 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2024 | £12K | £3,601 | £2,107 | 1 | |
| 30 Sep 2023 | £100 | £100 | 1 |
Where Sigma Construction Lincs Ltd is registered
The registered office is in Gainsborough (DN21), in the West Lindsey local authority area, East Midlands. Show DN21 2NA on a map.
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Shared registered office
58 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 Sigma Construction Lincs Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Sep 2026 to 17 Oct 2026 | £150 |
| 1 to 3 months late | 18 Oct 2026 to 17 Dec 2026 | £375 |
| 3 to 6 months late | 18 Dec 2026 to 17 Mar 2027 | £750 |
| More than 6 months late | From 18 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 18 Dec 2026 | £200 |
| 3 months late | 17 Mar 2027 | another £200 |
| 6 months late | 17 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 17 Dec 2027 | 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
- 14365301
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 September 2022 (4 years ago)
- Registered office
- Office 1, Engine House, Marshalls Yard, Gainsborough, DN21 2NA
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 29 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 21 October 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Gainsborough
Other active building contractors registered in Gainsborough.
- Steve Brady Developments Limited2004
- Supported Environments Limited2014
- TBS-Build Ltd2026
- Walkers Walls and Floors Ltd2014
- Warren Vale Construction Limited2012
- Whitworth & Rush Limited2007
- 2CS Construction Ltd2014
- Aiw Construction Limited2025
All building contractors in Gainsborough · All trades in Gainsborough · Builders across the UK
Frequently asked questions
When are Sigma Construction Lincs Ltd's accounts due?
Sigma Construction Lincs Ltd's accounts were due at Companies House on 17 September 2026 and the register shows them as overdue.
When is Sigma Construction Lincs 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 30 September 2025, due by 30 September 2026, and one for the period to 17 December 2025, due by 17 December 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sigma Construction Lincs Ltd still trading?
Sigma Construction Lincs Ltd is listed as active on the Companies House register (checked 13 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 Sigma Construction Lincs Ltd do?
Sigma Construction Lincs Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Sigma Construction Lincs Ltd?
Sigma Construction Lincs Ltd was incorporated on 20 September 2022, 4 years ago.
What is the penalty if Sigma Construction Lincs 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 Sigma Construction Lincs Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.