PricingHow It WorksWebsites
CT600 FilingCompanies House AccountsCompany Deadlines LookupWhat You Need to FileSelf AssessmentCIS ReturnsMaking Tax DigitalFree Tax Calculators
YappazineFree Tax CalculatorsHelp CentreFAQSupportOur Infrastructure
Jobs & leadsStripeMeta Lead AdsWhatsApp AITelegram
Tax filingHMRC (MTD)
Works with bothXeroQuickBooks
AboutPartner APIContactSecurityPrivacy PolicyTerms of Service
  1. Companies
  2. Installers
  3. Harrow
  4. JN Constructions Ltd

JN Constructions Ltd

ActiveNo accounts filed yet accountsInstallersHarrow
Company number
17092822
Incorporated
16 Mar 2026
Registered office
211 Station Road, Harrow, Middlesex, HA1 2TP
Nature of business
Other construction installation
Accounts due in
430 days
16 Dec 2027
From the Companies House register, 1 Oct 2026

JN Constructions Ltd is a newly incorporated private limited company registered in Harrow, company number 17092822, one of 130 installation companies (insulation, lifts, shutters and similar) in Harrow. Its next accounts are due at Companies House on 16 December 2027, and its first CT600 is due at HMRC on 15 March 2028.

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
16 Dec 2027
in 430 days
For the period to 31 Mar 2027
CT600 due (first of two)
15 Mar 2028
in 520 days
Period 16 Mar 2026 to 15 Mar 2027
CT600 due (second of two)
31 Mar 2028
in 536 days
Period 16 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
29 Mar 2027
in 168 days

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 JN Constructions Ltd

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.

Where JN Constructions Ltd is registered

JN Constructions Ltd's registered office on a map of the UK

The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 2TP on a map.

Other trade companies in HA1

Also registered at this address

22 other companies use the same registered office as JN Constructions Ltd.

What happens if JN Constructions 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 16 December 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late17 Dec 2027 to 16 Jan 2028£150
1 to 3 months late17 Jan 2028 to 16 Mar 2028£375
3 to 6 months late17 Mar 2028 to 16 Jun 2028£750
More than 6 months lateFrom 17 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
17092822
Status
Active
Company type
Private limited company
Incorporated
16 March 2026
Registered office
211 Station Road, Harrow, Middlesex, HA1 2TP
Nature of business
Other construction installation (SIC 43290)
Year end
31 March (accounting reference date)
Accounts type
No accounts filed yet

Filing notes for installation companies (insulation, lifts, shutters and similar)

Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.

Similar companies in Harrow

Other active installation companies (insulation, lifts, shutters and similar) registered in Harrow.

All installation companies (insulation, lifts, shutters and similar) in Harrow · All trades in Harrow · Installers across the UK

Frequently asked questions

When are JN Constructions Ltd's accounts due?

JN Constructions Ltd's next accounts are due at Companies House by 16 December 2027 (in 430 days), covering the period to 31 March 2027.

When is JN Constructions 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 15 March 2027, due by 15 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 JN Constructions Ltd still trading?

JN Constructions 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 JN Constructions Ltd do?

JN Constructions Ltd is registered under Other construction installation (SIC 43290).

How old is JN Constructions Ltd?

JN Constructions Ltd was incorporated on 16 March 2026, less than a year ago.

What is the penalty if JN Constructions 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 JN Constructions 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.

File accounts + CT600File now£49Let's talk