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Free UK company deadline checker

SIIA LIMITED

Enter a company name or number to see its accounts, confirmation statement and Corporation Tax dates, straight from Companies House.

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The five dates every UK company needs to know

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    Questions

    When are a private limited company's accounts due?

    Usually 9 months after the end of the company's financial year. A company's first accounts are normally due 21 months after it was incorporated. Public limited companies have 6 months.

    When is the confirmation statement due?

    At least once every 12 months. You have 14 days after the end of the review period to file it.

    When is Corporation Tax due?

    For most companies, Corporation Tax is payable 9 months and 1 day after the end of the accounting period, and the CT600 return is due 12 months after the end of the period. Large companies pay by quarterly instalments.

    Where does the checker get its data?

    Accounts and confirmation statement dates come live from Companies House. Corporation Tax dates are estimated from the accounts period end, which usually matches the Corporation Tax accounting period. Always check with your accountant or HMRC before relying on them.

    What happens if accounts are filed late?

    Companies House charges an automatic late filing penalty, which goes up the later the accounts are, and doubles if accounts are late two years running. HMRC charges separate penalties for late Corporation Tax returns.

    SIIA LIMITED – company deadlines

    The annual accounts for SIIA LIMITED were due at Companies House on 31 December 2025 and are 317 days overdue. The estimated Companies House late filing penalty is £1,500 if they are filed now; it goes up when the accounts are more than 1, 3 and 6 months late. The confirmation statement was due on 7 October 2025 and is overdue – a company that does not file it can be struck off the register.

    Company number12662560
    StatusActive
    Company typeLtd
    Incorporated11 June 2020
    Registered office77 Taylor Avenue, Leamington Spa, CV32 7SA, England

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    Companies in CV32 · Late filing penalties on GOV.UK · Penalties are estimates from public records, not a bill. Data from Companies House (Open Government Licence v3.0), checked 13 November 2026.