19th

• PAYE & NIC deductions, and CIS return and tax, for month 8 to 05/12 (due 22^nd if you pay electronically)

30th

• Deadline for filing Self-Assessment tax return in order to request that HMRC collect outstanding tax via PAYE code.

31st

• Corporation tax for accounts year ended 31^st March
• VAT for Returns ended 30^th November (due 7^th January if you pay electronically, 12^th January if you pay by direct debit)
• If your limited company has a year end of 31^st March this year then your accounts need to be filed at Companies House by 31^st December.