Washington State Income Tax Return

Washington State Income Tax Return

Washington State Income Tax Return

The tax year runs from 6 April to 5 April, but there are key dates in the calendar year for sending in your tax return and making tax payments. It is important that you are aware of and adhere to these dates, as HMRC (Her Majesty's Revenue & Customs) will impose penalties and additional charges if you miss them.

31st January deadline for online tax returns

If you submit your tax return online, it must reach HMRC by midnight on 31st January.

The deadline is earlier if you owe tax of less than £2,000 and you want HMRC to collect it by reducing your Pay As You Earn (PAYE) tax code next year. In this case, you need to send your tax return online by 30th December. HMRC will try to amend your tax code to take account of this. If this cannot be done, you will have to make the payment by 31st January.