- Company number
- 16442213
- Incorporated
- 10 May 20251 year trading
- Registered office
- 12 Kempster Close, Abingdon, OX14 3UU
- Nature of business
- Construction of commercial buildings
Flag Brothers Ltd is a 1-year-old private limited company registered in Abingdon, company number 16442213, one of 64 building contractors in Abingdon. Its next accounts are due at Companies House on 10 February 2027, and its first CT600 is due at HMRC on 9 May 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.
Is this your company?
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Where Flag Brothers Ltd is registered
The registered office is in Abingdon (OX14), in the Vale of White Horse local authority area, South East. Show OX14 3UU on a map.
Other trade companies in OX14
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- Abingdon MOT Centre LimitedMechanics and garages
- Oxford Air Holdings LimitedPlumbers and heating engineers
- George&Co.Estates LtdProperty developers
- Pym's Landscaping LimitedLandscapers and gardeners
- Christian Lucy Home & Property Services LtdBuilders
- Don Clean LimitedCleaning companies
What happens if Flag Brothers 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 10 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Feb 2027 to 10 Mar 2027 | £150 |
| 1 to 3 months late | 11 Mar 2027 to 10 May 2027 | £375 |
| 3 to 6 months late | 11 May 2027 to 10 Aug 2027 | £750 |
| More than 6 months late | From 11 Aug 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
- 16442213
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2025 (1 year ago)
- Registered office
- 12 Kempster Close, Abingdon, OX14 3UU
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 9 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 Abingdon
Other active building contractors registered in Abingdon.
- FM Renovations Ltd2026
- Framecore Ltd2026
- GJS Partners Ltd2024
- Goodwill Builds Limited2026
- Grant Construction (Oxfordshire) Ltd2021
- Herring Homes Designer/Constructors Limited2007
- Hooke's Homes Developments Ltd2022
- I & S Goodenough Limited2004
All building contractors in Abingdon · All trades in Abingdon · Builders across the UK
Frequently asked questions
When are Flag Brothers Ltd's accounts due?
Flag Brothers Ltd's next accounts are due at Companies House by 10 February 2027 (in 120 days), covering the period to 31 May 2026.
When is Flag Brothers Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 9 May 2026, due by 9 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Flag Brothers Ltd still trading?
Flag Brothers 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 Flag Brothers Ltd do?
Flag Brothers Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Flag Brothers Ltd?
Flag Brothers Ltd was incorporated on 10 May 2025, 1 year ago.
What is the penalty if Flag Brothers 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 Flag Brothers 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.