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- Merctech Limited
Company profile · Mechanics and garages
Merctech Limited
Merctech Limited is a 23-year-old private limited company registered in Swansea, company number 04681970, one of 154 vehicle repair garages in Swansea. 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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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Merctech Limited over the years
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 £96K (+10.2%) on the year before, to £1M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £1.1M against £209K owed within a year: 5.4 times cover.
- 9 employees on average, up from 8 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1M | £1M | £1.1M | £209K | 9 |
| 31 Mar 2024 | £947K | £889K | £992K | £161K | 8 |
| 31 Mar 2023 | £884K | £783K | £892K | £126K | 7 |
| 31 Mar 2022 | £843K | £754K | £864K | £138K | 8 |
| 31 Mar 2021 | £731K | £666K | £756K | £142K | 9 |
| 31 Mar 2020 | £639K | £534K | £663K | £140K | 9 |
| 31 Mar 2019 | £569K | £412K | £581K | £130K | 9 |
| 31 Mar 2018 | £489K | £393K | £504K | £127K | 8 |
| 31 Mar 2017 | £391K | £249K | £347K | £67K | 7 |
| 31 Mar 2016 | £444K | £424K | £549K | £107K |
Where Merctech Limited is registered
The registered office is in Swansea (SA5), in the Swansea local authority area, Wales. Show SA5 8LT on a map.
Other trade companies in SA5
- Lee.T73 Rail LtdCivil engineering
- LJ Cleaning Swansea LimitedCleaning companies
- Same Day Roof Repairs Swansea LtdRoofers
- Warlow&Co LimitedProperty developers
- RNJ Vehicle Repairs LtdMechanics and garages
- Erj's Recovery and Transportation LtdMotor traders
- Brandrick Group LimitedElectricians
- Chris Chambers Holdings LimitedElectricians
Also registered at this address
2 other companies use the same registered office as Merctech Limited.
- P & R Garage Services LimitedMechanics and garages
- W123 World LimitedMotor traders
What happens if Merctech 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 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
- 04681970
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2003 (23 years ago)
- Registered office
- 138 Heol Y Gors, Cwmbwrla, Swansea, SA5 8LT
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 February 2026
Filing notes for vehicle repair garages
Garages hold parts stock and often own diagnostic equipment and ramps, which qualify for capital allowances.
Similar companies in Swansea
Other active vehicle repair garages registered in Swansea.
- MGR Motors Limited2007
- Mike and Son Auto Mechanics Ltd2026
- Mike Cooke Limited2018
- Mike Tucker Autos and Son Ltd2021
- Mister Matic Limited2002
- MOT and Clutch Specialists Ltd2016
- Niss-Tec Limited1999
- NJ Restorations Limited2016
All vehicle repair garages in Swansea · All trades in Swansea · Mechanics and garages across the UK
Frequently asked questions
When are Merctech Limited's accounts due?
Merctech Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Merctech Limited'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 Merctech Limited still trading?
Merctech 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 Merctech Limited do?
Merctech Limited is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is Merctech Limited?
Merctech Limited was incorporated on 28 February 2003, 23 years ago.
What is the penalty if Merctech 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 Merctech Limited on Companies House for filed documents, officers and the full history.
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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.