- Companies
- Motor traders
- Birmingham
- Mainstream Parts Limited
Mainstream Parts Limited
- Company number
- 15220821
- Incorporated
- 18 Oct 20232 years trading
- Registered office
- 26 Capcroft Road, Birmingham, B13 0JB
- Nature of business
- Wholesale trade of motor vehicle parts and accessories; Retail trade of motor vehicle parts and accessories
Mainstream Parts Limited is a 2-year-old private limited company registered in Birmingham, company number 15220821, one of 1,296 motor trade companies in Birmingham. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £374 (+7.2%) on the year before, to -£4,837.
- Current assets of £8,844 against £14K owed within a year: 0.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£4,837 | £1,894 | £8,844 | £14K | 0 |
| 31 Oct 2024 | -£5,211 | £2,508 | £5,808 | £11K | 0 |
Where Mainstream Parts Limited is registered
The registered office is in Birmingham (B13), in the Birmingham local authority area, West Midlands. Show B13 0JB on a map.
Other trade companies in B13
- Limestones Construction Group LtdSpecialist contractors
- J.J Flame Solutions LtdBuilders
- Mix Force FM LtdCleaning companies
- Ak47 Builders LtdBuilders
- Hydropulse Drainz LtdCleaning companies
- Alcester Properties Developments LimitedProperty developers
- Summit Project Management LtdProperty developers
- Lota Property Group LimitedProperty developers
What happens if Mainstream Parts 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 15220821
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 October 2023 (2 years ago)
- Registered office
- 26 Capcroft Road, Birmingham, B13 0JB
- Nature of business
- Wholesale trade of motor vehicle parts and accessories (SIC 45310)
Retail trade of motor vehicle parts and accessories (SIC 45320) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 17 October 2025
Filing notes for motor trade companies
Motor trade companies hold vehicle stock, and how that stock is valued at the year end moves the profit directly. Some use the VAT margin scheme.
Similar companies in Birmingham
Other active motor trade companies registered in Birmingham.
- Majestik Motors Limited2024
- Mak Customz UK Ltd2025
- Mak Spares Limited2021
- Margab Ltd2016
- Marjan Tyres Ltd2025
- Maroof Autos Ltd2026
- Maroufi Motors Limited2026
- Marshall & Son Motors Limited2008
All motor trade companies in Birmingham · All trades in Birmingham · Motor traders across the UK
Frequently asked questions
When are Mainstream Parts Limited's accounts due?
Mainstream Parts Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Mainstream Parts Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Mainstream Parts Limited still trading?
Mainstream Parts 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 Mainstream Parts Limited do?
Mainstream Parts Limited is registered under Wholesale trade of motor vehicle parts and accessories (SIC 45310); Retail trade of motor vehicle parts and accessories (SIC 45320).
How old is Mainstream Parts Limited?
Mainstream Parts Limited was incorporated on 18 October 2023, 2 years ago.
What is the penalty if Mainstream Parts 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 Mainstream Parts 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.