- Company number
- 17007136
- Incorporated
- 2 Feb 2026
- Registered office
- 409 East Bawtry Road, Rotherham, S60 4ES
- Nature of business
- Construction of domestic buildings
Theo Slack Limited is a newly incorporated private limited company registered in Rotherham, company number 17007136, one of 222 building contractors in Rotherham. Its next accounts are due at Companies House on 2 November 2027, and its first CT600 is due at HMRC on 1 February 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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Who runs and owns Theo Slack Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** S*** | Director | Feb 2026 |
Person with significant control
Where Theo Slack Limited is registered
The registered office is in Rotherham (S60), in the Rotherham local authority area, Yorkshire and The Humber. Show S60 4ES on a map.
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What happens if Theo Slack 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 2 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Nov 2027 to 2 Dec 2027 | £150 |
| 1 to 3 months late | 3 Dec 2027 to 2 Feb 2028 | £375 |
| 3 to 6 months late | 3 Feb 2028 to 2 May 2028 | £750 |
| More than 6 months late | From 3 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17007136
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2026
- Registered office
- 409 East Bawtry Road, Rotherham, S60 4ES
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
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 Rotherham
Other active building contractors registered in Rotherham.
- Thomas Renovations Ltd2026
- Three Hills Developments Limited2024
- Titan Civil Engineering Ltd2025
- TKK Logistics Solutions Ltd2026
- TLR Dryling Ltd2026
- TLR Solution Ltd2026
- Torjen Developments Limited2018
- TPGP Ltd2026
All building contractors in Rotherham · All trades in Rotherham · Builders across the UK
Frequently asked questions
When are Theo Slack Limited's accounts due?
Theo Slack Limited's next accounts are due at Companies House by 2 November 2027 (in 386 days), covering the period to 28 February 2027.
When is Theo Slack 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 1 February 2027, due by 1 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Theo Slack Limited still trading?
Theo Slack 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 Theo Slack Limited do?
Theo Slack Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Theo Slack Limited?
Theo Slack Limited was incorporated on 2 February 2026, less than a year ago.
Who runs Theo Slack Limited?
Theo Slack Limited has 1 active director, the longest-serving appointed in Feb 2026. Their names and service addresses are on the Companies House register.
Who owns Theo Slack Limited?
One person or company has significant control of Theo Slack Limited: an individual (owns 75% or more of the shares).
What is the penalty if Theo Slack 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 Theo Slack 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.