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  4. Thermopassive Ltd

Thermopassive Ltd

ActiveMicro-entity accountsProperty developersInvergordon
Company number
SC413753
Incorporated
28 Dec 201114 years trading
Registered office
Morrich House, 20 Davidson Drive, Invergordon, Ross-Shire, IV18 0SA
Nature of business
Development of building projects
Accounts
Overdue
Were due 29 Sep 2026
Net assets
£33K▼
-5.8% on the year before
Employees
3
Average during the year
Checked with Companies House 12 Oct 2026

Thermopassive Ltd is a 14-year-old private limited company registered in Invergordon, company number SC413753, one of the UK's property development companies. Companies House shows its accounts as overdue: they were due on 29 September 2026.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
29 Sep 2026
Overdue by 13 days
For the period to 29 Dec 2025
CT600 due
29 Dec 2026
in 78 days
Period 1 Jan 2025 to 29 Dec 2025
Corporation tax payment
30 Sep 2026
Date passed
9 months and 1 day after the period end
Confirmation statement
13 Dec 2026
in 62 days
Last made up to 29 Nov 2025

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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 £2,071 (-5.8%) on the year before, to £33K.
  • Net assets rose in 4 of 9 year-on-year comparisons on record.
  • Current assets of £208K against £57K owed within a year: 3.7 times cover.
  • 3 employees on average, down from 4 the year before.
  • Balance sheets on record for 10 years, 2016 to 2024.

Net assets by year

Net assets at each year end, 2016 to 2024£0£20K£40K30 December 2016: net assets £51K£51K201631 December 2016: net assets £51K£51K201631 December 2017: net assets £31K£31K201731 December 2018: net assets £2,242£2,242201831 December 2019: net assets £30K£30K201931 December 2020: net assets £41K£41K202031 December 2021: net assets £41K£41K202129 December 2022: net assets £27K£27K202229 December 2023: net assets £35K£35K202331 December 2024: net assets £33K£33K2024
Net assets at each year end, 2016 to 2024£0£20K£40K30 December 2016: net assets £51K£51K'1631 December 2016: net assets £51K£51K'1631 December 2017: net assets £31K£31K'1731 December 2018: net assets £2,242£2,242'1831 December 2019: net assets £30K£30K'1931 December 2020: net assets £41K£41K'2031 December 2021: net assets £41K£41K'2129 December 2022: net assets £27K£27K'2229 December 2023: net assets £35K£35K'2331 December 2024: net assets £33K£33K'24
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2024£33K£208K£57K3
29 Dec 2023£35K£224K£75K4
29 Dec 2022£27K£183K£89K4
31 Dec 2021£41K£184K£77K4
31 Dec 2020£41K£168K£168K4
31 Dec 2019£30K£143K£148K2
31 Dec 2018£2,242£60K£100K
31 Dec 2017£31K£45K£24K
31 Dec 2016£51K£128K£54K
30 Dec 2016£51K£65K£128K£84K

Who runs and owns Thermopassive Ltd

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
I*** M***DirectorDec 2011
I*** M***SecretaryDec 2011

Person with significant control

Individual · since Apr 2016
I*** M***
Owns 75% or more of the shares
Holds 75% or more of the votes

Where Thermopassive Ltd is registered

Thermopassive Ltd's registered office on a map of the UK

The registered office is in Invergordon (IV18), in the Highland local authority area, Scotland. Show IV18 0SA on a map.

Other trade companies in IV18

Also registered at this address

2 other companies use the same registered office as Thermopassive Ltd.

What happens if Thermopassive Ltd files late

If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.

Companies HouseAccounts deliveredPenalty
Up to 1 month late30 Sep 2026 to 29 Oct 2026£150
1 to 3 months late30 Oct 2026 to 29 Dec 2026£375
3 to 6 months late30 Dec 2026 to 29 Mar 2027£750
More than 6 months lateFrom 30 Mar 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late30 Dec 2026£200
3 months late29 Mar 2027another £200
6 months late29 Jun 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late29 Dec 2027another 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
SC413753
Status
Active
Company type
Private limited company
Incorporated
28 December 2011 (14 years ago)
Registered office
Morrich House, 20 Davidson Drive, Invergordon, Ross-Shire, IV18 0SA
Nature of business
Development of building projects (SIC 41100)
Year end
29 December (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 December 2024
Last confirmation statement
29 November 2025

Filing notes for property development companies

Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.

Similar companies in Invergordon

Other active property development companies registered in Invergordon.

All property development companies in Invergordon · All trades in Invergordon · Property developers across the UK

Frequently asked questions

When are Thermopassive Ltd's accounts due?

Thermopassive Ltd's accounts were due at Companies House on 29 September 2026 and the register shows them as overdue.

When is Thermopassive Ltd's CT600 due?

The CT600 for the period to 29 December 2025 is due at HMRC by 29 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 30 September 2026.

Is Thermopassive Ltd still trading?

Thermopassive Ltd is listed as active on the Companies House register (checked 12 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 Thermopassive Ltd do?

Thermopassive Ltd is registered under Development of building projects (SIC 41100).

How old is Thermopassive Ltd?

Thermopassive Ltd was incorporated on 28 December 2011, 14 years ago.

Who runs Thermopassive Ltd?

Thermopassive Ltd has 1 active director, the longest-serving appointed in Dec 2011. Their names and service addresses are on the Companies House register.

Who owns Thermopassive Ltd?

One person or company has significant control of Thermopassive Ltd: an individual (owns 75% or more of the shares).

What is the penalty if Thermopassive 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 Thermopassive 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, rechecked 12 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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