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Important Accounting & Tax Dates

Key UK accounting and compliance dates businesses should keep on their radar.

Always confirm deadlines directly with HMRC, as dates and requirements may change. This page is a general guide and not tax advice.

VAT Deadlines

Most VAT-registered businesses submit a VAT return every quarter. The deadline to submit the return and pay any VAT due is usually one calendar month and seven days after the end of the VAT accounting period. Businesses on the annual or monthly schemes follow different timelines, so it is worth confirming the dates that apply to you.

Self Assessment

The UK tax year runs to 5 April. If you complete a Self Assessment tax return, online returns are generally due by 31 January following the end of the tax year, with paper returns due earlier. Any tax owed is usually due by the same 31 January deadline, and some taxpayers also make payments on account during the year.

Corporation Tax

Limited companies usually need to pay Corporation Tax within nine months and one day of the end of their accounting period, and file a Company Tax Return within twelve months of the period end. Because these are tied to your company's own accounting period, the exact dates differ from business to business.

Payroll Deadlines

Employers report payroll information to HMRC on or before each payday through Real Time Information (RTI). PAYE tax and National Insurance are typically paid monthly, due by the 22nd of the following tax month when paying electronically (or the 19th by post). Quarterly payment may be available for smaller employers.

Making Tax Digital

Making Tax Digital (MTD) requires businesses to keep digital records and submit returns using compatible software. MTD already applies to VAT-registered businesses, and it is being introduced in phases for Income Tax Self Assessment. Check whether and when MTD applies to your circumstances.

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