- Companies
- Motor traders
- Hitchin
- Sim Autos Ltd
Sim Autos Ltd
- Company number
- 13818502
- Incorporated
- 27 Dec 20214 years trading
- Registered office
- 9 Land at Bury Mead Road (Unit 2), Hitchin, SG5 1RT
- Nature of business
- Sale of used cars and light motor vehicles; Maintenance and repair of motor vehicles
Sim Autos Ltd is a 4-year-old private limited company registered in Hitchin, company number 13818502, one of 46 motor trade companies in Hitchin. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £16K (+279%) on the year before, to £22K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £66K against £44K owed within a year: 1.5 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £22K | £66K | £44K | 2 | |
| 31 Dec 2024 | £5,856 | £71K | £45K | 1 | |
| 31 Dec 2023 | £4,435 | £58K | £53K | 0 | |
| 31 Dec 2022 | £995 | £4,664 | £3,319 | 0 |
Where Sim Autos Ltd is registered
The registered office is in Hitchin (SG5), in the North Hertfordshire local authority area, East of England. Show SG5 1RT on a map.
Other trade companies in SG5
- Unlock Your Dreams LtdProperty developers
- The Peugeot and Renault Man LtdMechanics and garages
- Woods Property Solutions LtdBuilders
- PM Contractors LtdBuilders
- S. Harris Builders LimitedFinishing trades
- Stotfold Property Services LtdBuilders
- SGB Modern Access LtdScaffolders
- Top Class Roofing & Renovations LimitedRoofers
What happens if Sim Autos 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13818502
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 December 2021 (4 years ago)
- Registered office
- 9 Land at Bury Mead Road (Unit 2), Hitchin, SG5 1RT
- Nature of business
- Sale of used cars and light motor vehicles (SIC 45112)
Maintenance and repair of motor vehicles (SIC 45200) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 7 December 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 Hitchin
Other active motor trade companies registered in Hitchin.
- Stevenage Motor Centre Limited2013
- Superformance (UK) Limited2006
- Supertyres Motorists Centre (Welwyn) Limited1983
- The Car Agents Limited2010
- TLM Tyres 24/7 Ltd2025
- Total Mobile Tyres Ltd2016
- Toyota Hybrid Specialist Ltd2020
- Turbodrive Ltd2025
All motor trade companies in Hitchin · All trades in Hitchin · Motor traders across the UK
Frequently asked questions
When are Sim Autos Ltd's accounts due?
Sim Autos Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Sim Autos Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Sim Autos Ltd still trading?
Sim Autos 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 Sim Autos Ltd do?
Sim Autos Ltd is registered under Sale of used cars and light motor vehicles (SIC 45112); Maintenance and repair of motor vehicles (SIC 45200).
How old is Sim Autos Ltd?
Sim Autos Ltd was incorporated on 27 December 2021, 4 years ago.
What is the penalty if Sim Autos 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 Sim Autos 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.