- Companies
- Finishing trades
- Birmingham
- Blackcat Comms Limited
Blackcat Comms Limited
- Company number
- 05578928
- Incorporated
- 29 Sep 200521 years trading
- Registered office
- 58 Ashville Avenue, Castle Bromwich, Birmingham, B34 6LN
- Nature of business
- Other building completion and finishing; Wired telecommunications activities
Blackcat Comms Limited is a 21-year-old private limited company registered in Birmingham, company number 05578928, one of 422 building finishing companies in Birmingham. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Blackcat Comms LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £47K (-63.4%) on the year before, to £27K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £28K against £169 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £27K | £28K | £169 | 0 | |
| 30 Sep 2024 | £74K | £83K | £8,686 | 0 | |
| 30 Sep 2023 | £78K | £87K | £9,102 | 0 | |
| 30 Sep 2022 | £84K | £73K | £97K | £13K | 0 |
| 30 Sep 2021 | £89K | £75K | £99K | £12K | 0 |
| 30 Sep 2020 | £96K | £70K | £106K | £13K | 0 |
| 30 Sep 2019 | £106K | £62K | £108K | £5,786 | 0 |
| 30 Sep 2018 | £150K | £54K | £187K | £43K | |
| 30 Sep 2017 | £149K | £146K | £184K | £44K | |
| 30 Sep 2016 | £186K | £138K | £207K | £25K |
Where Blackcat Comms Limited is registered
The registered office is in Birmingham (B34), in the Birmingham local authority area, West Midlands. Show B34 6LN on a map.
Other trade companies in B34
- Saa Autohaus LtdMotor traders
- Allesley Auto Cars LtdMotor traders
- Sterlec Contracts LtdElectricians
- Chris's Facilities Management Services LtdCleaning companies
- Ajq Properties LtdProperty developers
- Luxury Verandas LtdGlaziers
- SZ Amns LtdMechanics and garages
- S&H Homes LtdProperty developers
What happens if Blackcat Comms 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 05578928
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 September 2005 (21 years ago)
- Registered office
- 58 Ashville Avenue, Castle Bromwich, Birmingham, B34 6LN
- Nature of business
- Other building completion and finishing (SIC 43390)
Wired telecommunications activities (SIC 61100) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 29 September 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 Birmingham
Other active building finishing companies registered in Birmingham.
- BLM Building Limited2020
- Blythe Construction Services Ltd2022
- Boiler Flame Ltd2023
- Bratt Building Plumbing & Roofing Limited2000
- Brickwood Construction & Landscaping Ltd2016
- Brook Buildz Ltd2021
- Brum Maintenance Ltd2026
- Brumz Tiling Ltd2026
All building finishing companies in Birmingham · All trades in Birmingham · Finishing trades across the UK
Frequently asked questions
When are Blackcat Comms Limited's accounts due?
Blackcat Comms Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Blackcat Comms Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Blackcat Comms Limited still trading?
Blackcat Comms 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 Blackcat Comms Limited do?
Blackcat Comms Limited is registered under Other building completion and finishing (SIC 43390); Wired telecommunications activities (SIC 61100).
How old is Blackcat Comms Limited?
Blackcat Comms Limited was incorporated on 29 September 2005, 21 years ago.
What is the penalty if Blackcat Comms 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 Blackcat Comms Limited 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.