- Companies
- Mechanics and garages
- Portsmouth
- A1 Automac Ltd
A1 Automac Ltd
- Company number
- 07648104
- Incorporated
- 26 May 201115 years trading
- Registered office
- 103 Elm Grove, Southsea, Portsmouth, Hampshire, PO5 1LH
- Nature of business
- Maintenance and repair of motor vehicles
A1 Automac Ltd is a 15-year-old private limited company registered in Portsmouth, company number 07648104, one of 104 vehicle repair garages in Portsmouth. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £59K (+537.3%) on the year before, to £70K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £97K against £30K owed within a year: 3.2 times cover.
- 5 employees on average during the year.
- 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 May 2025 | £70K | £97K | £30K | 5 | |
| 31 May 2024 | £11K | £101K | £71K | 5 | |
| 31 May 2023 | £7,201 | £93K | £66K | 5 | |
| 31 May 2022 | £8,908 | £58K | £28K | 3 | |
| 31 May 2021 | £15K | £72K | £29K | 2 | |
| 31 May 2020 | £19K | £67K | £17K | 1 | |
| 31 May 2019 | £27K | £102K | £88K | ||
| 31 May 2018 | £15K | £87K | £88K | ||
| 31 May 2017 | £31 | £68K | £83K | ||
| 31 May 2016 | £9,279 | £15K | £24K | £29K |
Where A1 Automac Ltd is registered
The registered office is in Portsmouth (PO5), in the Portsmouth local authority area, South East. Show PO5 1LH on a map.
Other trade companies in PO5
- Fixnova LtdRepair services
- Luxury Resin Floors and Media Walls LtdBuilders
- Pretty Unique Cleaning Services LtdCleaning companies
- Bay Bricks LtdProperty developers
- Blydan Holdings LimitedProperty developers
- Inside Out Developments Southampton LtdBuilders
- Hampshire Car Hire LtdMechanics and garages
- Baynes Wipers LtdMachinery repair and installation
Also registered at this address
6 other companies use the same registered office as A1 Automac Ltd.
- A1 Body Works LtdMechanics and garages
- A1 Tyres Services LtdMotor traders
- Aqua Car Wash Portsmouth LtdMechanics and garages
- Barakah Auto Garage LtdMechanics and garages
- Fixnova LtdRepair services
- Your Recovery Automotive LtdMotor traders
What happens if A1 Automac 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 07648104
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 May 2011 (15 years ago)
- Registered office
- 103 Elm Grove, Southsea, Portsmouth, Hampshire, PO5 1LH
- Nature of business
- Maintenance and repair of motor vehicles (SIC 45200)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 10 May 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 Portsmouth
Other active vehicle repair garages registered in Portsmouth.
- A1 Body Works Ltd2017
- Ackworth Road MOT Centre Limited2002
- Aleksandar Limited2026
- Alexander Autos Portsmouth Limited2018
- Alpha Auto Centre Ltd2025
- Aqua Car Wash Portsmouth Ltd2022
- Aqua Garage Services Limited2013
- Atlanta Garage Ltd2020
All vehicle repair garages in Portsmouth · All trades in Portsmouth · Mechanics and garages across the UK
Frequently asked questions
When are A1 Automac Ltd's accounts due?
A1 Automac Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is A1 Automac Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is A1 Automac Ltd still trading?
A1 Automac 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 A1 Automac Ltd do?
A1 Automac Ltd is registered under Maintenance and repair of motor vehicles (SIC 45200).
How old is A1 Automac Ltd?
A1 Automac Ltd was incorporated on 26 May 2011, 15 years ago.
What is the penalty if A1 Automac 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 A1 Automac Ltd 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.