Welsh Government

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Pay your Self Assessment tax bill

Make sure you pay HM Revenue and Customs (HMRC) by the deadline. You’ll be charged interest and may have to pay a penalty if your payment is late.

The deadlines for paying your tax bill are:

  • 31 January - for any tax you owe for the previous tax year (known as a balancing payment) and your first payment on account
  • 31 July for your second payment on account

The time you need to allow depends on how you pay.

For further information please visit the GOV.UK website.

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