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Tax Calendar: Important Dates & Deadlines
July - August 2018

Now updated with August dates, here's a list of important tax dates and deadlines for the coming months.

July 2018

  • 31st The Second payment on a/c due 2017/18
  • 31st Annual Declaration (renewal of tax credits). You must return your Tax Credit pack forms to HMRC by this date. More Info
  • 31st Last day to pay any tax owing on 2016/17 Self Assessment before 1st August (when it is 6 months late) = £300 fine or 5% of the tax owing, which ever is greater.

Below dates are relevant for Employers only

  • 5th Last date to agree PAYE settlements with HMRC for 2017/18 if any owing.
  • 6th Employers must return form 42 (share incentives) and any new tax credits they qualify for by this date.
  • 6th Forms 9D, 11D and 11D(b) to do with employees benefits and expenses, to be returned by this date and a copy given to each employee.
  • 19th (22nd if paid electronically) Class 1A Nat. Ins for 2017/18 (form 11D returned by 6th of this month- employees benefits) due to be paid.
  • 19th (22nd if paid electronically) PAYE, Nat. Ins.,Student Loan & C.I.S. Monthly deductions due.
  • 19th, (22nd if paid electronically) 2nd quarter PAYE/Nat. Ins. payments due for period 6th April to 5th July 2018.

August 2018

Please Note: August 19th is a Sunday so electronic manual payments need to be cleared by Friday 17th

  • August 2nd Second 5% charge on any unpaid tax owed on 2015/16 Self Assessment Return, plus a further £300 fine or 5% of the tax owing (which ever is greater), for those who still have not submitted their return.

Below dates are relevant for  Employers only

  • August 2nd Deadline to notify HMRC of changes to employees car/fuel benefit (P46) from previous quarter.
  • August 17th (22nd  if paid electronically) PAYE, Nat. Ins.,Student Loan & C.I.S. Monthly deductions due.

If there are any relevant tax dates we are not presently including in our tax calendar, please feel free to contact us to request their inclusion.

This article was published in our Tax Calendar section on 01/07/2018.

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