- Companies
- Finishing trades
- Strabane
- Rsi SD Ltd
Rsi SD Ltd
- Company number
- NI743636
- Incorporated
- 9 Sep 2026
- Registered office
- 9 Garvan Road, Sion Mills, Strabane, BT82 9NZ
- Nature of business
- Other building completion and finishing; Other letting and operating of own or leased real estate
Rsi SD Ltd is a newly incorporated private limited company registered in Strabane, company number NI743636, one of the UK's building finishing companies. Its next accounts are due at Companies House on 9 June 2028, and its first CT600 is due at HMRC on 8 September 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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Where Rsi SD Ltd is registered
The registered office is in Strabane (BT82), in the Derry City and Strabane local authority area, Northern Ireland. Show BT82 9NZ on a map.
Other trade companies in BT82
- Mod Motors LtdMotor traders
- Rsi VS LtdFinishing trades
- Be Clear Installations LtdGlaziers
- Ae Digital Engineering Services LtdCivil engineering
- Clady Refurb LtdProperty developers
- Devlin Contracts LtdProperty developers
- Clean and Carwash LtdCleaning companies
- Border Scaffolding (NI) LtdScaffolders
Also registered at this address
1 other company uses the same registered office as Rsi SD Ltd.
- Rsi VS LtdFinishing trades
What happens if Rsi SD 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 9 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 10 Jun 2028 to 9 Jul 2028 | £150 |
| 1 to 3 months late | 10 Jul 2028 to 9 Sep 2028 | £375 |
| 3 to 6 months late | 10 Sep 2028 to 9 Dec 2028 | £750 |
| More than 6 months late | From 10 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- NI743636
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 September 2026
- Registered office
- 9 Garvan Road, Sion Mills, Strabane, BT82 9NZ
- Nature of business
- Other building completion and finishing (SIC 43390)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Strabane
Other active building finishing companies registered in Strabane.
All building finishing companies in Strabane · All trades in Strabane · Finishing trades across the UK
Frequently asked questions
When are Rsi SD Ltd's accounts due?
Rsi SD Ltd's next accounts are due at Companies House by 9 June 2028 (in 606 days), covering the period to 30 September 2027.
When is Rsi SD 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 8 September 2027, due by 8 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Rsi SD Ltd still trading?
Rsi SD 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 Rsi SD Ltd do?
Rsi SD Ltd is registered under Other building completion and finishing (SIC 43390); Other letting and operating of own or leased real estate (SIC 68209).
How old is Rsi SD Ltd?
Rsi SD Ltd was incorporated on 9 September 2026, less than a year ago.
What is the penalty if Rsi SD 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 Rsi SD 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.