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. Machinery repair and installation
  3. Winchester
  4. Routine Marine Limited

Routine Marine Limited

ActiveNo accounts filed yet accountsMachinery repair and installationWinchester
Company number
17074145
Incorporated
6 Mar 2026
Registered office
6 Charlecote Mews, Staple Gardens, Winchester, Hampshire, SO23 8SR
Nature of business
Repair and maintenance of ships and boats
Accounts due in
419 days
6 Dec 2027
From the Companies House register, 1 Oct 2026

Routine Marine Limited is a newly incorporated private limited company registered in Winchester, company number 17074145, one of 22 machinery repair and installation companies in Winchester. Its next accounts are due at Companies House on 6 December 2027, and its first CT600 is due at HMRC on 5 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
6 Dec 2027
in 419 days
For the period to 31 Mar 2027
CT600 due (first of two)
5 Mar 2028
in 509 days
Period 6 Mar 2026 to 5 Mar 2027
CT600 due (second of two)
31 Mar 2028
in 535 days
Period 6 Mar 2027 to 31 Mar 2027
Corporation tax payment
1 Jan 2028
in 445 days
9 months and 1 day after the period end
Confirmation statement
19 Mar 2027
in 157 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 Routine Marine Limited

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 Routine Marine Limited is registered

Routine Marine Limited's registered office on a map of the UK

The registered office is in Winchester (SO23), in the Winchester local authority area, South East. Show SO23 8SR on a map.

Other trade companies in SO23

Also registered at this address

17 other companies use the same registered office as Routine Marine Limited.

What happens if Routine Marine Limited 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 6 December 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late7 Dec 2027 to 6 Jan 2028£150
1 to 3 months late7 Jan 2028 to 6 Mar 2028£375
3 to 6 months late7 Mar 2028 to 6 Jun 2028£750
More than 6 months lateFrom 7 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
17074145
Status
Active
Company type
Private limited company
Incorporated
6 March 2026
Registered office
6 Charlecote Mews, Staple Gardens, Winchester, Hampshire, SO23 8SR
Nature of business
Repair and maintenance of ships and boats (SIC 33150)
Year end
31 March (accounting reference date)
Accounts type
No accounts filed yet

Filing notes for machinery repair and installation companies

Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.

Similar companies in Winchester

Other active machinery repair and installation companies registered in Winchester.

All machinery repair and installation companies in Winchester · All trades in Winchester · Machinery repair and installation across the UK

Frequently asked questions

When are Routine Marine Limited's accounts due?

Routine Marine Limited's next accounts are due at Companies House by 6 December 2027 (in 419 days), covering the period to 31 March 2027.

When is Routine Marine Limited's CT600 due?

The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 5 March 2027, due by 5 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 Routine Marine Limited still trading?

Routine Marine Limited 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 Routine Marine Limited do?

Routine Marine Limited is registered under Repair and maintenance of ships and boats (SIC 33150).

How old is Routine Marine Limited?

Routine Marine Limited was incorporated on 6 March 2026, less than a year ago.

What is the penalty if Routine Marine Limited 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 Routine Marine Limited 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