ListenToTaxman.com

UK PAYE Tax Calculator / Salary Calculator

The number 1 free UK salary calculator tax calculator since 1998. Calculate salary, national insurance, HMRC tax and net pay

Tax Calendar: Important Dates & Deadlines
March - April 2018

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

March 2018 

  • 1st - 2016/17 Self Assessment payment now 30 days late = 5% charge on the tax owing on that day.
  • 13th - Budget Day - The Spring Budget Day. 
  • 31st - Closing date to claim for the Winter Fuel Benefit for this year.
  • March - Last minute tax planning. Double check you have availed of all relevant allowances/ exemptions for capital gains tax, inheritance tax, ISA's and pension. Check out our article on making the most of your annual allowances.

Below dates relevant for Employers only.

  • 1st - Last chance to pay any balance of 2016/17 tax and Class 4 NICs to avoid an automatic 5% late payment penalty.
  • 1st - New advisory fuel rates for users of company cars effective from today.
  • 19th (22nd if paid electronically) - PAYE, Nat. Ins.,Student Loan & CIS monthly deductions due. Last day to send in Employer Payment Summary's (EPS) for month ended 5th March.

April 2018 - End of Tax Year - Use up your allowances!

  • 1st - Introduction of the new 16.5% VAT flat rate for businesses with limited costs. More Info here.
  • 5th - End of 2016/17 tax year. Last chance to avail of annual exemptions for capital gains tax, inheritance tax, pension allowances and ISA's
  • 5th - Last chance to use up any unused pension allowance from 2014/15; or to claim back any overpaid tax from 2013/14; or to top up your NI contributions for the sake of your state pension for 2011/12.
  • 6th - New tax year commences as do any tax changes such as the increase in the basic personal allowance to £11,850
  • 6th - HMRC issue Self Assessment Returns and Notices to Complete a Return for the year to 5 April 2018.
  • 30th - Last chance to avoid the £10 a day additional penalty on outstanding 2016/17 Self Assessment tax return.

Below dates relevant for Employers only

  • 6th - Employers must check their payroll software incorporates the 2018-19 changes from today. Also make sure any relevant changes to employees tax codes for the 2018/19 year have been made.
  • 19th - Your final Full Payment Submission (FPS) for the 2016-17 year should be returned by today. 
  • 19th (22nd if paid electronically) - 1st quarter PAYE/Nat. Ins. payments due for period 6th Jan to 5th April 2017.
  • 19th (22nd if paid electronically) - PAYE, Nat Ins, Student Loan & CIS monthly deductions due.
  • 19th (22nd if paid electronically) - Interest is charged on any outstanding PAYE/CIS from 2016/17.

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 02/04/2018.

Some Guides you may be interested in

  • Company car tax for business owners What are the tax implications of buying a company car from a tax perspective? Take a look at our indepth analysis.
  • Landlords - Should you incorporate or not? Iain Rankin our Property Tax Expert, from TaxKings, takes a run through the decision making process to help you weigh up what the appropriate course of action is for you
  • What’s Required For Your First Digital VAT Return The government has started to roll-out Making Tax Digital (MTD) in a bid to engineer the UK tax system so that it embraces the online era. I hope this guide will help you understand the implications.
  • Scotland Vs England And Wales: What Are The Differences In Tax? There are significant differences to how much tax you pay in Scotland in comparison to England.
  • AirBnb vs long-term-rentals For the holiday maker & professionals alike, it’s safe to say that short-term let platforms - such as AirBnb, Flipkey, or Homeaway - have been a bit of a game changer.
  • Bookkeeper v Accountant Are you paying your accountant to prepare your books? Could you save some money by hiring a bookkeeper? Clare Doherty explains the key differences…
  • 5 Tax changes that may affect you this year Following the start of a new tax year, it’s always useful to stay abreast of changes to your responsibility. Certain legislative updates in 2019 have been overshadowed by the spectre of Making Tax Digital for VAT, causing smaller (but significant) changes to be overlooked.
  • Top Ten Claimable Expenses for Limited Companies Let’s start with a thought experiment. I’ll set the scene. You’re a limited company owner, and you, as the director, are the sole employee. You also - understandably – love learning about tax. You open up the Monday morning paper to find some exciting news - HMRC has hinted there are going to be some big changes in the upcoming UK budget.....
  • Salary vs Dividends A guide to tax efficient remuneration for Limited Company directors for 2019/20.
  • What changes to buy-to-let mortgage interest tax relief for landlords? Undoubtedly the biggest source of tax confusion for prospective landlord clients that we speak to here at TaxKings relates to the changes to tax relief for residential landlords, introduced by the UK Government in April 2017.

More from our Tax Calendar section