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What are the UK tax year dates and filing deadlines?

We've updated this guide on 12th October 2021

The UK tax year for individuals starts and ends in April. After that, you’ll have 7 to 10 months to prepare your tax return.

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UK tax year dates

  • The tax year for individuals: April 6th to April 5th.

Tax filing deadlines

  • Self Assessment registration (you can do it here): October 5th
  • Income tax filing deadline (paper): October 31st
  • Income tax filing deadline (online): January 31st.

Tax payment deadlines

  • Income tax payment deadline: January 31st
  • Class 2 National Insurance Contribution (NIC) payment deadline: October 31st
  • if you’re self-employed, you’ll have to pay your second Payment on Account (read more about it here) before July 31st.

Dates you need to know

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