Key Upcoming US and UK tax dates to watch out for

With time moving faster than ever it is only a matter of months until the tax season is here. Here is a reminder of all of the tax deadlines you should be aware of.


5th October 2017

Register for Self Assessment if you're self employed or a sole trader, not self-employed or registering partner or partnership


31st October 2017

Paper tax return deadline


31st January 2018

Online tax return deadline


31st January 2018

Pay all tax owed




15th September 2017

  • 3rd Quarter estimated tax payments due for the 2016 tax year
  • Final deadline to file corporate tax returns for 2016 if an extension was requested.


1st October 2017

Deadline for self-employed persons or small employers to establish a simple-IRA for the year 2016


16th October 2017

  • Final deadline to file individual tax returns for the year 2016.
  • Last day the IRS will accept an electronically filed return for the year 2016. If filing after October 2015, you'll have to mail in your tax return for processing. 
  • Final deadline to fund a SEP-IRA or sole 401(k) for tax year 2016 if you requested an automatic extension of time to file

Contact us for expert UK or US tax advice