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  4. Sinclair Storage Systems Limited

Sinclair Storage Systems Limited

ActiveTotal exemption (full) accountsFinishing tradesRowley Regis
Company number
06444088
Incorporated
4 Dec 200718 years trading
Registered office
5A Woolpack Close, Rowley Regis, B65 8HY
Nature of business
Other building completion and finishing
Accounts due in
444 days
31 Dec 2027
Net assets
£14K▲
+23.0% on the year before
Employees
3
Average during the year
From the Companies House register, 1 Oct 2026

Sinclair Storage Systems Limited is a 18-year-old private limited company registered in Rowley Regis, company number 06444088, one of 11 building finishing companies in Rowley Regis. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.

Key dates

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

Accounts due
31 Dec 2027
in 444 days
For the period to 31 Mar 2027
CT600 due
31 Mar 2028
in 535 days
Period 1 Apr 2026 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 445 days
9 months and 1 day after the period end
Confirmation statement
18 Dec 2026
in 66 days
Last made up to 4 Dec 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 up £2,642 (+23%) on the year before, to £14K.
  • Net assets rose in 5 of 9 year-on-year comparisons on record.
  • Current assets of £68K against £51K owed within a year: 1.3 times cover.
  • 3 employees on average, down from 4 the year before.
  • Balance sheets on record for 10 years, 2017 to 2026.

Net assets by year

Net assets at each year end, 2017 to 2026£0£20K£40K31 March 2017: net assets £52K£52K201731 March 2018: net assets £12K£12K201831 March 2019: net assets £15K£15K201931 March 2020: net assets £14K£14K202031 March 2021: net assets £176£176202131 March 2022: net assets £988£988202231 March 2023: net assets £6,168£6,168202331 March 2024: net assets £12K£12K202431 March 2025: net assets £11K£11K202531 March 2026: net assets £14K£14K2026
Net assets at each year end, 2017 to 2026£0£20K£40K31 March 2017: net assets £52K£52K'1731 March 2018: net assets £12K£12K'1831 March 2019: net assets £15K£15K'1931 March 2020: net assets £14K£14K'2031 March 2021: net assets £176£176'2131 March 2022: net assets £988£988'2231 March 2023: net assets £6,168£6,168'2331 March 2024: net assets £12K£12K'2431 March 2025: net assets £11K£11K'2531 March 2026: net assets £14K£14K'26
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2026£14K£68K£51K3
31 Mar 2025£11K£0£71K£52K4
31 Mar 2024£12K£10K£68K£39K4
31 Mar 2023£6,168£28K£74K£51K4
31 Mar 2022£988£6,985£65K£47K4
31 Mar 2021£176£27K£59K£39K4
31 Mar 2020£14K£1,235£30K£34K4
31 Mar 2019£15K£5,444£54K£59K4
31 Mar 2018£12K£28K£43K£43K4
31 Mar 2017£52K£21K£51K£1,4504

Who runs and owns Sinclair Storage Systems Limited

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

Officers (3)

NameRoleAppointed
M*** S***DirectorDec 2007
K*** S***DirectorJul 2026
K*** S***SecretaryDec 2007

People with significant control (2)

Individual · since Dec 2016
K*** S***
Owns 25% to 50% of the shares
Individual · since Dec 2016
M*** S***
Owns 25% to 50% of the shares

Where Sinclair Storage Systems Limited is registered

Sinclair Storage Systems Limited's registered office on a map of the UK

The registered office is in Rowley Regis (B65), in the Sandwell local authority area, West Midlands. Show B65 8HY on a map.

Other trade companies in B65

What happens if Sinclair Storage Systems 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 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2028 to 31 Jan 2028£150
1 to 3 months late1 Feb 2028 to 31 Mar 2028£375
3 to 6 months late1 Apr 2028 to 30 Jun 2028£750
More than 6 months lateFrom 1 Jul 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2028£200
3 months late30 Jun 2028another £200
6 months late30 Sep 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2029another 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
06444088
Status
Active
Company type
Private limited company
Incorporated
4 December 2007 (18 years ago)
Registered office
5A Woolpack Close, Rowley Regis, B65 8HY
Nature of business
Other building completion and finishing (SIC 43390)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2026
Last confirmation statement
4 December 2025

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 Rowley Regis

Other active building finishing companies registered in Rowley Regis.

All building finishing companies in Rowley Regis · All trades in Rowley Regis · Finishing trades across the UK

Frequently asked questions

When are Sinclair Storage Systems Limited's accounts due?

Sinclair Storage Systems Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.

When is Sinclair Storage Systems Limited's CT600 due?

The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.

Is Sinclair Storage Systems Limited still trading?

Sinclair Storage Systems 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 Sinclair Storage Systems Limited do?

Sinclair Storage Systems Limited is registered under Other building completion and finishing (SIC 43390).

How old is Sinclair Storage Systems Limited?

Sinclair Storage Systems Limited was incorporated on 4 December 2007, 18 years ago.

Who runs Sinclair Storage Systems Limited?

Sinclair Storage Systems Limited has 2 active directors, the longest-serving appointed in Dec 2007. Their names and service addresses are on the Companies House register.

Who owns Sinclair Storage Systems Limited?

2 people or companies have significant control of Sinclair Storage Systems Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).

What is the penalty if Sinclair Storage Systems 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 Sinclair Storage Systems Limited 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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