- Companies
- Civil engineering
- Northampton
- JJ & LL Group Limited
JJ & LL Group Limited
- Company number
- 16646271
- Incorporated
- 12 Aug 20251 year trading
- Registered office
- 30A High Street, Moulton, Northampton, NN3 7SR
- Nature of business
- Construction of utility projects for electricity and telecommunications; specialised design activities; Specialised cleaning services
JJ & LL Group Limited is a 1-year-old private limited company registered in Northampton, company number 16646271, one of 152 civil engineering contractors in Northampton. Its next accounts are due at Companies House on 12 May 2027, and its first CT600 is due at HMRC on 11 August 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where JJ & LL Group Limited is registered
The registered office is in Northampton (NN3), in the West Northamptonshire local authority area, East Midlands. Show NN3 7SR on a map.
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What happens if JJ & LL Group 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 12 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 13 May 2027 to 12 Jun 2027 | £150 |
| 1 to 3 months late | 13 Jun 2027 to 12 Aug 2027 | £375 |
| 3 to 6 months late | 13 Aug 2027 to 12 Nov 2027 | £750 |
| More than 6 months late | From 13 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16646271
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 August 2025 (1 year ago)
- Registered office
- 30A High Street, Moulton, Northampton, NN3 7SR
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
specialised design activities (SIC 74100)
Specialised cleaning services (SIC 81222) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Northampton
Other active civil engineering contractors registered in Northampton.
- JMB Construction Solutions Ltd2010
- Joe Cruise Limited2018
- JPB Building Ltd2025
- JPL Groundwork Services Limited2017
- K. & N. Waite Construction Limited1995
- KD Civil Engineering Ltd2023
- Kerbcraft Contractors Ltd2023
- Keybuild Northampton Ltd2020
All civil engineering contractors in Northampton · All trades in Northampton · Civil engineering across the UK
Frequently asked questions
When are JJ & LL Group Limited's accounts due?
JJ & LL Group Limited's next accounts are due at Companies House by 12 May 2027 (in 211 days), covering the period to 31 August 2026.
When is JJ & LL Group Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 11 August 2026, due by 11 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is JJ & LL Group Limited still trading?
JJ & LL Group 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 JJ & LL Group Limited do?
JJ & LL Group Limited is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); specialised design activities (SIC 74100); Specialised cleaning services (SIC 81222).
How old is JJ & LL Group Limited?
JJ & LL Group Limited was incorporated on 12 August 2025, 1 year ago.
What is the penalty if JJ & LL Group 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 JJ & LL Group 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.