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Diary of main tax events December / January 2018
Diary of main tax events December / January 2018

Diary of main tax events December / January 2018

Date What’s Due 
1/12 Corporation tax for year to 28/02/2017 unless quarterly instalments apply.
19/12 PAYE & NIC deductions, and CIS return and tax, for month to 5/12/17 (due 22/12 if you pay electronically).
30/12 Deadline for filing 2016/17 tax return online in order to request that HMRC collect outstanding tax via the 2017/18 PAYE code.
1/01 Corporation tax for year to 31/03/17.
19/01 PAYE & NIC deductions, and CIS return and tax, for month to 5/01/18 (due 22/01 if you pay electronically).
31/01 Self-Assessment tax return for 2016/17 due, together with balancing payment and 50% payment on account of 2017/18 tax.