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Company profile · Builders
RH Interior Systems Ltd
RH Interior Systems Ltd is a newly incorporated private limited company registered in Kilwinning, company number SC889000, one of the UK's building contractors. Its next accounts are due at Companies House on 8 February 2028, and its first CT600 is due at HMRC on 7 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.
Is this your company?
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Where RH Interior Systems Ltd is registered
The registered office is in Kilwinning (KA13), in the North Ayrshire local authority area, Scotland. Show KA13 7BW on a map.
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What happens if RH Interior 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 8 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Feb 2028 to 8 Mar 2028 | £150 |
| 1 to 3 months late | 9 Mar 2028 to 8 May 2028 | £375 |
| 3 to 6 months late | 9 May 2028 to 8 Aug 2028 | £750 |
| More than 6 months late | From 9 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
- SC889000
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2026
- Registered office
- 23 Waterside Road, Kilwinning, KA13 7BW
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 May (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 Kilwinning
Other active building contractors registered in Kilwinning.
All building contractors in Kilwinning · All trades in Kilwinning · Builders across the UK
Frequently asked questions
When are RH Interior Systems Ltd's accounts due?
RH Interior Systems Ltd's next accounts are due at Companies House by 8 February 2028 (in 484 days), covering the period to 31 May 2027.
When is RH Interior 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 7 May 2027, due by 7 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 RH Interior Systems Ltd still trading?
RH Interior 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 RH Interior Systems Ltd do?
RH Interior Systems Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other specialised construction activities n.e.c. (SIC 43999).
How old is RH Interior Systems Ltd?
RH Interior Systems Ltd was incorporated on 8 May 2026, less than a year ago.
What is the penalty if RH Interior 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 RH Interior 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.