- Company number
- SC860148
- Incorporated
- 25 Aug 20251 year trading
- Registered office
- 11 Victor Street, Airdrie, North Lanarkshire, ML6 7JX
- Nature of business
- Construction of commercial buildings
Kalm Contracts Ltd is a 1-year-old private limited company registered in Airdrie, company number SC860148, one of 51 building contractors in Airdrie. Its next accounts are due at Companies House on 25 May 2027, and its first CT600 is due at HMRC on 24 August 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?
File the first 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 Kalm Contracts LtdOr 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.
Who runs and owns Kalm Contracts Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| C*** M*** | Director | Aug 2025 |
Person with significant control
Where Kalm Contracts Ltd is registered
The registered office is in Airdrie (ML6), in the North Lanarkshire local authority area, Scotland. Show ML6 7JX on a map.
Other trade companies in ML6
- KM Access Solutions LtdSpecialist contractors
- MTS Roofing LtdBuilders
- Colston Joinery LtdJoiners and carpenters
- Scott Clark Electrics LtdElectricians
- Standard Rentals LtdElectricians
- Build Brothers LtdBuilders
- Murphy Roof Tiling & Roughcasting LtdSpecialist contractors
- Roots&Remembrance LtdCleaning companies
What happens if Kalm Contracts 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 25 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 May 2027 to 25 Jun 2027 | £150 |
| 1 to 3 months late | 26 Jun 2027 to 25 Aug 2027 | £375 |
| 3 to 6 months late | 26 Aug 2027 to 25 Nov 2027 | £750 |
| More than 6 months late | From 26 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- SC860148
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2025 (1 year ago)
- Registered office
- 11 Victor Street, Airdrie, North Lanarkshire, ML6 7JX
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 August 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 Airdrie
Other active building contractors registered in Airdrie.
- Lafferty Contracts Ltd2026
- Loudon Brickwork Limited2014
- Macleod Consultants Limited2022
- McCracken Construction Ltd.2004
- MCRB Construction Ltd2026
- MDR Construction Ltd2022
- MTS Roofing Ltd2026
- NM Installations Limited2026
All building contractors in Airdrie · All trades in Airdrie · Builders across the UK
Frequently asked questions
When are Kalm Contracts Ltd's accounts due?
Kalm Contracts Ltd's next accounts are due at Companies House by 25 May 2027 (in 224 days), covering the period to 31 August 2026.
When is Kalm Contracts 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 24 August 2026, due by 24 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Kalm Contracts Ltd still trading?
Kalm Contracts 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 Kalm Contracts Ltd do?
Kalm Contracts Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Kalm Contracts Ltd?
Kalm Contracts Ltd was incorporated on 25 August 2025, 1 year ago.
Who runs Kalm Contracts Ltd?
Kalm Contracts Ltd has 1 active director, the longest-serving appointed in Aug 2025. Their names and service addresses are on the Companies House register.
Who owns Kalm Contracts Ltd?
One person or company has significant control of Kalm Contracts Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Kalm Contracts 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 Kalm Contracts 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.