Deadline for first self-assessment payment on account for tax year ended 5 April 2019.
Deadline for all settlements on loans advanced through disguised remuneration schemes dating back to 1999, subject to change.
Deadline for online submission of self-assessment tax returns for tax year ended 5 April 2018 for HMRC to collect tax through PAYE codes, where they owe less than £3,000.
New fuel rates come into force.
Deadline for paper submission of self-assessment tax return for tax year ended 5 April 2018.