Company profile · Builders
J J Mac Ltd
J J Mac Ltd is a 23-year-old private limited company registered in Bourne, company number 04680913, one of 23 building contractors in Bourne. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 June 2025, as filed at Companies House.
J J Mac Ltd over the years
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 £137K (+2.1%) on the year before, to £6.7M.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £4.3M against £393K owed within a year: more than 10 times cover.
- 13 employees on average, up from 12 the year before.
- 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 Jun 2025 | £6.7M | £2.3M | £4.3M | £393K | 13 |
| 30 Jun 2024 | £6.6M | £2.1M | £4.4M | £400K | 12 |
| 30 Jun 2023 | £6.1M | £1.6M | £4.1M | £493K | 13 |
| 30 Jun 2022 | £5.4M | £2.1M | £3.4M | £559K | 13 |
| 30 Jun 2021 | £4.6M | £2.6M | £3.3M | £393K | 9 |
| 30 Jun 2020 | £4.1M | £2.7M | £3.1M | £229K | 8 |
| 30 Jun 2019 | £3.6M | £2M | £2.8M | £373K | 9 |
| 30 Jun 2018 | £2.5M | £1.9M | £2.4M | £796K | 8 |
| 30 Jun 2017 | £1.9M | £1.3M | £1.7M | £510K | 8 |
| 30 Jun 2016 | £766K | £702K | £876K | £397K |
Where J J Mac Ltd is registered
The registered office is in Bourne (PE10), in the South Kesteven local authority area, East Midlands. Show PE10 0AU on a map.
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What happens if J J Mac 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 04680913
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 February 2003 (23 years ago)
- Registered office
- J J Mac Ltd, Spalding Road, Bourne, Lincolnshire, PE10 0AU
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of roads and motorways (SIC 42110)
Construction of other civil engineering projects n.e.c. (SIC 42990)
Site preparation (SIC 43120) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 22 May 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Bourne
Other active building contractors registered in Bourne.
- Jason Murray Homes Limited2001
- Kingswood Builders (Lincolnshire) Limited1998
- L.Green-Brickwork Ltd2025
- Larkfleet Elevating House Limited2016
- Larkfleet Limited1998
- Liquiscreed Ltd2022
- Namaste Builders Ltd2022
- Probus Construction Limited2017
All building contractors in Bourne · All trades in Bourne · Builders across the UK
Frequently asked questions
When are J J Mac Ltd's accounts due?
J J Mac Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is J J Mac Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is J J Mac Ltd still trading?
J J Mac 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 J J Mac Ltd do?
J J Mac Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of roads and motorways (SIC 42110); Construction of other civil engineering projects n.e.c. (SIC 42990); Site preparation (SIC 43120).
How old is J J Mac Ltd?
J J Mac Ltd was incorporated on 27 February 2003, 23 years ago.
What is the penalty if J J Mac 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 J J Mac 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.