Date What’s Due
01 October Corporation tax for year to 31/12/16 unless quarterly instalments apply.
05 October Deadline for notifying HMRC of chargeability for 2016/17 if not within Self-Assessment and receive income or gains on which tax is due, for example rental income or CGT on the sale of a second property.
19 October PAYE & NIC deductions, and CIS return and tax, for month to 5/10/17 (due 22 October if you pay electronically);
01 November Corporation tax for year to 31/1/17 unless quarterly instalments apply
19  November PAYE & NIC deductions, and CIS return and tax, for month to 5/11/17 (due 22 November if you pay electronically
01 December Corporation tax for year to 29/2/2017 unless quarterly instalments apply
19 December PAYE & NIC deductions, and CIS return and tax, for month to 5/12/17 (due 22 December if you pay electronically)
30 December Deadline for submitting your tax return online if  you would like your outstanding tax for 2016/17 collected through payroll (limits apply). If you would like to pay your tax this way please ensure that we receive your tax information in good time to meet the 30 December deadline. Note that the absolute deadline for filing your self-assessment tax return online is 31 January 2018.