14 January - Return and payment of CT61 tax due for quarter to 31 December 2014
19/22 January - PAYE/NIC, student loan and CIS deductions due for month to 5/1/2015 or quarter 3 of 2014/15 for small employers
31 January
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Deadline for filing 2014 Self Assessment personal, partnership and trust Tax Returns - £100 first penalty for late filing even if no tax is due or tax due is paid on time
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Balancing self assessment payment due for 2013/14
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Capital gains tax payment due for 2013/14
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First self assessment payment on account due for 2014/15
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Interest accrues on all late payments
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Half yearly Class 2 NIC payment due
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Further penalty of 5% of tax due or £300, whichever is greater for personal tax returns still not filed for 2012/13
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5% penalty for late payment of tax unpaid for 2012/13 self assessment