- Company number
- 16026085
- Incorporated
- 17 Oct 20241 year trading
- Registered office
- 4 Girton Close, Northolt, UB5 4SY
- Nature of business
- Construction of domestic buildings; Other construction installation
Do IT Once Ltd is a 1-year-old private limited company registered in Northolt, company number 16026085, one of 172 building contractors in Northolt. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 31 October 2025, as filed at Companies House.
Who runs and owns Do IT Once Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| C*** H*** | Director | Oct 2024 |
Person with significant control
Where Do IT Once Ltd is registered
The registered office is in Northolt (UB5), in the Ealing local authority area, London. Show UB5 4SY on a map.
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What happens if Do IT Once 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16026085
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2024 (1 year ago)
- Registered office
- 4 Girton Close, Northolt, UB5 4SY
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 16 October 2025
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 Northolt
Other active building contractors registered in Northolt.
- Dorin Sync Construction Limited2024
- DPS Builder Limited2026
- Eagle Constructions 1972 Ltd2022
- Ecaterina Art Ltd2015
- Edden Group Ltd2024
- Ekantik Contractors Ltd2022
- Energetic Builders UK Limited2026
- Es Facades Limited2017
All building contractors in Northolt · All trades in Northolt · Builders across the UK
Frequently asked questions
When are Do IT Once Ltd's accounts due?
Do IT Once Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Do IT Once Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Do IT Once Ltd still trading?
Do IT Once 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 Do IT Once Ltd do?
Do IT Once Ltd is registered under Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Do IT Once Ltd?
Do IT Once Ltd was incorporated on 17 October 2024, 1 year ago.
Who runs Do IT Once Ltd?
Do IT Once Ltd has 1 active director, the longest-serving appointed in Oct 2024. Their names and service addresses are on the Companies House register.
Who owns Do IT Once Ltd?
One person or company has significant control of Do IT Once Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Do IT Once 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 Do IT Once 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.