As we begin 2019, here are some important tax dates to keep in mind this January.

7 January

VAT return

Due date for November VAT returns unless exempted.

14 January

EC sales list

Deadline for paper monthly or quarterly return filing.

CT61 payment

Due date for income tax for the CT61 quarter to 31 December 2018.

19 January

CIS return

Construction Industry Scheme: monthly return due for period up to 5th of previous month.

Monthly postal PAYE/class 1 NICs/student loan payment

If you pay by cheque through the post, monthly payments due for PAYE, class 1 NICs and student loan deductions from December 2018.

Quarterly postal PAYE/class 1 NICs payment

Q3 (2018/19) PAYE/NIC payment due where paid by cheque. The cheque must be with HMRC by this date in order to avoid automatic interest charge.

21 January

EC sales list

Deadline for online monthly or quarterly return filing.


Due date for payment of supplementary declarations for December 2018.

22 January

Quarterly electronic PAYE/class 1 NICs payment

Q3 (2018/19) PAYE/NIC payment due in order to avoid an automatic interest charge.

Monthly electronic PAYE/class 1 NICs/student loan payment

If paying electronically, pay PAYE, class 1 NICs, student loan deductions and deductions from payments to subcontractors for the month up to the 5th of this month.

31 January

Self-assessment deadline

Deadline for online submission of self-assessment tax return for 2017/18 tax year, and for making balancing payments and payments on account.

Corporation tax return

Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 January 2018 to be submitted to HMRC.

Company accounts filing deadline

Deadline for filing your company tax return is 12 months after your accounting period for corporation tax ends.

Talk to us about your tax obligations.

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