1. Companies
  2. Civil engineering
  3. Lincoln
  4. O'Boyle Brothers Limited

O'Boyle Brothers Limited

ActiveTotal exemption (full) accountsCivil engineeringLincoln
Company number
06831101
Incorporated
26 Feb 200917 years trading
Registered office
Unit 3 Westminster Road, Westminster Trading Estate, North Hykeham, Lincoln, LN6 3QY
Nature of business
Construction of other civil engineering projects n.e.c.
Accounts due in
48 days
30 Nov 2026
From the Companies House register, 1 Oct 2026

O'Boyle Brothers Limited is a 17-year-old private limited company registered in Lincoln, company number 06831101, one of 108 civil engineering contractors in Lincoln. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Nov 2026
in 48 days
For the period to 28 Feb 2026
CT600 due
28 Feb 2027
in 138 days
Period 1 Mar 2025 to 28 Feb 2026
Corporation tax payment
1 Dec 2026
in 49 days
9 months and 1 day after the period end
Confirmation statement
12 Aug 2027
in 303 days
Last made up to 29 Jul 2026

Is this your company?

File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.

File for O'Boyle Brothers Limited

Or get a reminder before each deadline

Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.

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 £54K (+3.6%) on the year before, to £1.6M.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £1.8M against £209K owed within a year: 8.5 times cover.
  • 5 employees on average, down from 6 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£1M29 February 2016: net assets £849K£849K201628 February 2017: net assets £1.2M£1.2M201728 February 2018: net assets £1.2M£1.2M201828 February 2019: net assets £1.5M£1.5M201929 February 2020: net assets £1.7M£1.7M202028 February 2021: net assets £1.7M£1.7M202128 February 2022: net assets £2M£2M202228 February 2023: net assets £2M£2M202329 February 2024: net assets £1.5M£1.5M202428 February 2025: net assets £1.6M£1.6M2025
Net assets at each year end, 2016 to 2025£0£1M29 February 2016: net assets £849K£849K'1628 February 2017: net assets £1.2M£1.2M'1728 February 2018: net assets £1.2M£1.2M'1828 February 2019: net assets £1.5M£1.5M'1929 February 2020: net assets £1.7M£1.7M'2028 February 2021: net assets £1.7M£1.7M'2128 February 2022: net assets £2M£2M'2228 February 2023: net assets £2M£2M'2329 February 2024: net assets £1.5M£1.5M'2428 February 2025: net assets £1.6M£1.6M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
28 Feb 2025£1.6M£1.4M£1.8M£209K5
29 Feb 2024£1.5M£1.4M£1.6M£119K6
28 Feb 2023£2M£1.3M£2.2M£219K9
28 Feb 2022£2M£692K£2.4M£465K13
28 Feb 2021£1.7M£663K£2M£221K13
29 Feb 2020£1.7M£682K£2.2M£527K13
28 Feb 2019£1.5M£678K£2.1M£723K13
28 Feb 2018£1.2M£634K£1.5M£379K13
28 Feb 2017£1.2M£585K£1.6M£429K12
29 Feb 2016£849K£568K£1.3M£565K

Where O'Boyle Brothers Limited is registered

O'Boyle Brothers Limited's registered office on a map of the UK

The registered office is in Lincoln (LN6), in the North Kesteven local authority area, East Midlands. Show LN6 3QY on a map.

Other trade companies in LN6

What happens if O'Boyle Brothers 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 30 November 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Dec 2026 to 31 Dec 2026£150
1 to 3 months late1 Jan 2027 to 28 Feb 2027£375
3 to 6 months late1 Mar 2027 to 31 May 2027£750
More than 6 months lateFrom 1 Jun 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Mar 2027£200
3 months late28 May 2027another £200
6 months late28 Aug 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late28 Feb 2028another 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
06831101
Status
Active
Company type
Private limited company
Incorporated
26 February 2009 (17 years ago)
Registered office
Unit 3 Westminster Road, Westminster Trading Estate, North Hykeham, Lincoln, LN6 3QY
Nature of business
Construction of other civil engineering projects n.e.c. (SIC 42990)
Year end
28 February (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
28 February 2025
Last confirmation statement
29 July 2026
Charges (mortgages)
1 outstanding of 1 registered

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 Lincoln

Other active civil engineering contractors registered in Lincoln.

All civil engineering contractors in Lincoln · All trades in Lincoln · Civil engineering across the UK

Frequently asked questions

When are O'Boyle Brothers Limited's accounts due?

O'Boyle Brothers Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.

When is O'Boyle Brothers Limited's CT600 due?

The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.

Is O'Boyle Brothers Limited still trading?

O'Boyle Brothers 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 O'Boyle Brothers Limited do?

O'Boyle Brothers Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).

How old is O'Boyle Brothers Limited?

O'Boyle Brothers Limited was incorporated on 26 February 2009, 17 years ago.

What is the penalty if O'Boyle Brothers 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 O'Boyle Brothers Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

File accounts + CT600File now£49Let's talk