- Companies
- Builders
- South Croydon
- Bartkus and Sons Limited
Bartkus and Sons Limited
- Company number
- 12624855
- Incorporated
- 27 May 20206 years trading
- Registered office
- 52 Byron Road, South Croydon, CR2 8DY
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Bartkus and Sons Limited is a 6-year-old private limited company registered in South Croydon, company number 12624855, one of 100 building contractors in South Croydon. 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 down £8,350 (-21.5%) on the year before, to £31K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £9,544 against £22K owed within a year: 0.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £31K | £9,544 | £22K | 2 | |
| 31 May 2024 | £39K | £13K | £26K | 2 | |
| 31 May 2023 | £36K | £8,993 | £27K | 1 | |
| 31 May 2022 | £36K | £17K | £19K | 1 | |
| 31 May 2021 | £18K | £6,100 | £12K | 1 |
Where Bartkus and Sons Limited is registered
The registered office is in South Croydon (CR2), in the Croydon local authority area, London. Show CR2 8DY on a map.
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What happens if Bartkus and Sons 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 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
- 12624855
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 May 2020 (6 years ago)
- Registered office
- 52 Byron Road, South Croydon, CR2 8DY
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 26 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 South Croydon
Other active building contractors registered in South Croydon.
- Birch Construction Surrey Ltd2018
- Brick on Brick Construction Limited2026
- Bridleway Projects Limited2026
- Brix Property Solutions Ltd2020
- Btrix Construction Ltd2025
- Build Future Development Limited2025
- Casur Limited2023
- Clearview Design & Build Ltd2025
All building contractors in South Croydon · All trades in South Croydon · Builders across the UK
Frequently asked questions
When are Bartkus and Sons Limited's accounts due?
Bartkus and Sons Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Bartkus and Sons Limited'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 Bartkus and Sons Limited still trading?
Bartkus and Sons 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 Bartkus and Sons Limited do?
Bartkus and Sons Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Bartkus and Sons Limited?
Bartkus and Sons Limited was incorporated on 27 May 2020, 6 years ago.
What is the penalty if Bartkus and Sons 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 Bartkus and Sons 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.