- Companies
- Finishing trades
- Pontypridd
- NSB Interior Systems Ltd
NSB Interior Systems Ltd
- Company number
- 13491103
- Incorporated
- 2 Jul 20215 years trading
- Registered office
- 73 Oak Street, Rhydyfelin, Pontypridd, CF37 5SD
- Nature of business
- Other building completion and finishing
NSB Interior Systems Ltd is a 5-year-old private limited company registered in Pontypridd, company number 13491103, one of 23 building finishing companies in Pontypridd. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
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 down £6,086 (-76.7%) on the year before, to £1,853.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £2,726 against £1,481 owed within a year: 1.8 times cover.
- 1 employee on average, down from 2 the year before.
- 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 Mar 2025 | £1,853 | £2,726 | £1,481 | 1 | |
| 30 Sep 2024 | £7,939 | £12K | £4,546 | 2 | |
| 30 Sep 2023 | £4,944 | £12K | £8,420 | 1 | |
| 31 Jul 2022 | £2,752 | £13K | £17K | 1 |
Where NSB Interior Systems Ltd is registered
The registered office is in Pontypridd (CF37), in the Rhondda Cynon Taf local authority area, Wales. Show CF37 5SD on a map.
Other trade companies in CF37
- Hamilton Motor Group LtdMotor traders
- Pencoed Building Services LtdSpecialist contractors
- Pyo Property Developments LimitedBuilders
- Great Choice Leisure Vehicles LimitedMotor traders
- C2 Interior Contractors LtdBuilders
- Carpet Mine LtdFinishing trades
- LCH4RP LtdProperty developers
- LCH4Est LtdProperty developers
What happens if NSB 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 13491103
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 July 2021 (5 years ago)
- Registered office
- 73 Oak Street, Rhydyfelin, Pontypridd, CF37 5SD
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 September 2026
- Previous names
- Nyshi Internal Construction & Design Ltd (until 5 Sep 2022)
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 Pontypridd
Other active building finishing companies registered in Pontypridd.
- Roundhouse Builders Limited2019
- Shovel Dry Lining Limited2014
- Steele Construction Limited2011
- Stonecraft Garden Builders Ltd2026
- Torfaen Maintenance Services Limited2014
- Total Envelope Repairs & Maintenance Ltd2026
- Advanced Carpentry Solutions Ltd2015
- Allen Building Limited2018
All building finishing companies in Pontypridd · All trades in Pontypridd · Finishing trades across the UK
Frequently asked questions
When are NSB Interior Systems Ltd's accounts due?
NSB Interior Systems Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is NSB Interior Systems Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is NSB Interior Systems Ltd still trading?
NSB 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 NSB Interior Systems Ltd do?
NSB Interior Systems Ltd is registered under Other building completion and finishing (SIC 43390).
How old is NSB Interior Systems Ltd?
NSB Interior Systems Ltd was incorporated on 2 July 2021, 5 years ago.
What is the penalty if NSB 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 NSB 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.