31 JANUARY 2019

Deadline for 1st payment on account for 2018/19 tax year.

1 APRIL 2019

Introduction of ‘Making Tax Digital’ for VAT registered businesses with turnover in excess of £85,000.

5 APRIL 2019

Deadline for claiming tax overpaid for the 2014/15 tax year under Self-Assessment

6 APRIL 2019

First day of the new tax year 2019/20.

31 MAY 2019

Last date to give employees a form P60 for 2018/19.

6 JULY 2019

Copies of 2018/19 P11d documents issued to employees.

31 JULY 2019

Deadline for 2nd payment on account for tax year ending 5 April 2019.

5 OCTOBER 2019

Deadline to register with the HMRC if you became self-employed or started receiving income from property in the previous year.

31 OCTOBER 2019

Deadline for paper Self-Assessment Returns for 2018/19 tax year.

30 DECEMBER 2019

Deadline for online submission of Self-Assessment Returns for year ending 5 April 2019 for HMRC to collect tax through PAYE tax codes where they owe less than £3,000.

31 JANUARY 2020

Deadline for online self-assessment tax returns for 2018/19 tax year.

Deadline for paying tax bill for tax year ending 5 April 2019.

5 APRIL 2020

End of tax year 2019/20.