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Company profile · Plumbers and heating engineers

KBK Mechanical Services Ltd

KBK Mechanical Services Ltd is a newly incorporated private limited company registered in Milton Keynes, company number 17100748, one of 197 plumbing and heating companies in Milton Keynes. Its next accounts are due at Companies House on 18 December 2027, and its first CT600 is due at HMRC on 17 March 2028.

Active 17100748 No accounts filed yet accounts Milton Keynes Since 2026

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.

Accounts due
18 Dec 2027
in 432 days
For the period to 31 Mar 2027
CT600 due (first of two)
17 Mar 2028
in 522 days
Period 18 Mar 2026 to 17 Mar 2027
CT600 due (second of two)
31 Mar 2028
in 536 days
Period 18 Mar 2027 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 446 days
9 months and 1 day after the period end
Confirmation statement
31 Mar 2027
in 170 days

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Where KBK Mechanical Services Ltd is registered

KBK Mechanical Services Ltd's registered office on a map of the UK

The registered office is in Milton Keynes (MK8), in the Milton Keynes local authority area, South East. Show MK8 9EE on a map.

Other trade companies in MK8

What happens if KBK Mechanical Services 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 18 December 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late19 Dec 2027 to 18 Jan 2028£150
1 to 3 months late19 Jan 2028 to 18 Mar 2028£375
3 to 6 months late19 Mar 2028 to 18 Jun 2028£750
More than 6 months lateFrom 19 Jun 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2028£200
3 months late30 Jun 2028another £200
6 months late30 Sep 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2029another 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
17100748
Status
Active
Company type
Private limited company
Incorporated
18 March 2026
Registered office
39 Westwood Close, Great Holm, Milton Keynes, MK8 9EE
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999)
Year end
31 March (accounting reference date)
Accounts type
No accounts filed yet

Filing notes for plumbing and heating companies

Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.

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Other active plumbing and heating companies registered in Milton Keynes.

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Frequently asked questions

When are KBK Mechanical Services Ltd's accounts due?

KBK Mechanical Services Ltd's next accounts are due at Companies House by 18 December 2027 (in 432 days), covering the period to 31 March 2027.

When is KBK Mechanical Services 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 17 March 2027, due by 17 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.

Is KBK Mechanical Services Ltd still trading?

KBK Mechanical Services 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 KBK Mechanical Services Ltd do?

KBK Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999).

How old is KBK Mechanical Services Ltd?

KBK Mechanical Services Ltd was incorporated on 18 March 2026, less than a year ago.

What is the penalty if KBK Mechanical Services 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 KBK Mechanical Services Ltd 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.

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