- Company number
- 14326834
- Incorporated
- 31 Aug 20224 years trading
- Registered office
- PO Box 4385, 14326834 - Companies House Default Address, Cardiff, CF14 8LH
- Nature of business
- Construction of commercial buildings
Accountants and Taxx Ltd is a 4-year-old private limited company registered in Cardiff, company number 14326834, one of 361 building contractors in Cardiff. Companies House shows its accounts as overdue: they were due on 31 May 2026.
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 £50 (-33.3%) on the year before, to £100.
- 10 employees on average, up from 1 the year before.
- Balance sheets on record for 2 years, 2023 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £100 | 10 | |||
| 31 Aug 2023 | £150 | 1 |
Where Accountants and Taxx Ltd is registered
The registered office is in Cardiff (CF14), in the Caerphilly local authority area, Wales. Show CF14 8LH on a map.
Other trade companies in CF14
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- Premierroofcare LtdRoofers
- JLG Groundworks LtdCleaning companies
- Tidyvibz LtdCleaning companies
- Ayyappa MTD LtdBuilders
- KM Phoenix Pond, Garden & General Maintenance LtdLandscapers and gardeners
- Eco Green Property Service LtdFinishing trades
- S and J Accident Repairs LtdPainters and decorators
What happens if Accountants and Taxx Ltd files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2026 to 30 Jun 2026 | £150 |
| 1 to 3 months late | 1 Jul 2026 to 31 Aug 2026 | £375 |
| 3 to 6 months late | 1 Sep 2026 to 30 Nov 2026 | £750 |
| More than 6 months late | From 1 Dec 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2026 | £200 |
| 3 months late | 30 Nov 2026 | another £200 |
| 6 months late | 28 Feb 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2027 | 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
- 14326834
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 August 2022 (4 years ago)
- Registered office
- PO Box 4385, 14326834 - Companies House Default Address, Cardiff, CF14 8LH
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 30 August 2024
- Previous names
- Martin Construction Ltd (until 17 Jan 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 Cardiff
Other active building contractors registered in Cardiff.
- Actp Ltd2018
- Aga Heritage Conservation Limited2022
- Ai Capital Finance Ltd2026
- Ajs Construction South Wales Limited2026
- Ak Vertex Ltd2026
- Al Majd Building Ltd2021
- Al-Ko PTR Trans&Co Ltd2024
- Ala Building Services Ltd2025
All building contractors in Cardiff · All trades in Cardiff · Builders across the UK
Frequently asked questions
When are Accountants and Taxx Ltd's accounts due?
Accountants and Taxx Ltd's accounts were due at Companies House on 31 May 2026 and the register shows them as overdue.
When is Accountants and Taxx Ltd's CT600 due?
The CT600 for the period to 31 August 2025 is due at HMRC by 31 August 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2026.
Is Accountants and Taxx Ltd still trading?
Accountants and Taxx Ltd is listed as active on the Companies House register (checked 12 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 Accountants and Taxx Ltd do?
Accountants and Taxx Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Accountants and Taxx Ltd?
Accountants and Taxx Ltd was incorporated on 31 August 2022, 4 years ago.
What is the penalty if Accountants and Taxx 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 Accountants and Taxx Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.