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  4. Plantmech Ltd.

Plantmech Ltd.

ActiveTotal exemption (full) accountsMachinery repair and installationWakefield
Company number
06839410
Incorporated
6 Mar 200917 years trading
Registered office
34 Briary Close, Wakefield, West Yorkshire, WF1 5TS
Nature of business
Repair of machinery
Accounts due in
79 days
31 Dec 2026
Net assets
£8,872▼
-29.5% on the year before
Cash at bank
£5,091▲
At 31 Mar 2026
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

Plantmech Ltd. is a 17-year-old private limited company registered in Wakefield, company number 06839410, one of 64 machinery repair and installation companies in Wakefield. 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.

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
12 Mar 2027
in 150 days
Last made up to 26 Feb 2026

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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 £3,714 (-29.5%) on the year before, to £8,872.
  • Net assets rose in 2 of 9 year-on-year comparisons on record.
  • Current assets of £15K against £9,916 owed within a year: 1.5 times cover.
  • 2 employees on average during the year.
  • Balance sheets on record for 10 years, 2017 to 2026.

Net assets by year

Net assets at each year end, 2017 to 2026£0£5,000£10K31 March 2017: net assets £1£1201731 March 2018: net assets £1£1201831 March 2019: net assets £1£1201931 March 2020: net assets £1£1202031 March 2021: net assets £1£1202131 March 2022: net assets £1£1202231 March 2023: net assets £11K£11K202331 March 2024: net assets £13K£13K202431 March 2025: net assets £13K£13K202531 March 2026: net assets £8,872£8,8722026
Net assets at each year end, 2017 to 2026£0£5,000£10K31 March 2017: net assets £1£1'1731 March 2018: net assets £1£1'1831 March 2019: net assets £1£1'1931 March 2020: net assets £1£1'2031 March 2021: net assets £1£1'2131 March 2022: net assets £1£1'2231 March 2023: net assets £11K£11K'2331 March 2024: net assets £13K£13K'2431 March 2025: net assets £13K£13K'2531 March 2026: net assets £8,872£8,872'26
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2026£8,872£5,091£15K£9,9162
31 Mar 2025£13K£588£9,487£4,0402
31 Mar 2024£13K£337£13K£7,3542
31 Mar 2023£11K£4,002£10K£6,6011
31 Mar 2022£1
31 Mar 2021£1
31 Mar 2020£1
31 Mar 2019£1
31 Mar 2018£1
31 Mar 2017£1£1

Where Plantmech Ltd. is registered

Plantmech Ltd.'s registered office on a map of the UK

The registered office is in Wakefield (WF1), in the Wakefield local authority area, Yorkshire and The Humber. Show WF1 5TS on a map.

Other trade companies in WF1

What happens if Plantmech 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 HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2028another 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
06839410
Status
Active
Company type
Private limited company
Incorporated
6 March 2009 (17 years ago)
Registered office
34 Briary Close, Wakefield, West Yorkshire, WF1 5TS
Nature of business
Repair of machinery (SIC 33120)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
26 February 2026
Previous names
Poseidon Offshore Support Ltd (until 10 Oct 2022)
Advanced Research Kinetics (Ark) Ltd (until 1 Jul 2019)
Plantmec Ltd. (until 25 Aug 2017)
Aequitas IT Ltd (until 14 Nov 2011)

Filing notes for machinery repair and installation companies

Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.

Similar companies in Wakefield

Other active machinery repair and installation companies registered in Wakefield.

All machinery repair and installation companies in Wakefield · All trades in Wakefield · Machinery repair and installation across the UK

Frequently asked questions

When are Plantmech Ltd.'s accounts due?

Plantmech Ltd.'s next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is Plantmech 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 Plantmech Ltd. still trading?

Plantmech 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 Plantmech Ltd. do?

Plantmech Ltd. is registered under Repair of machinery (SIC 33120).

How old is Plantmech Ltd.?

Plantmech Ltd. was incorporated on 6 March 2009, 17 years ago.

What is the penalty if Plantmech 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 Plantmech Ltd. on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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