21 January 2022
Due date for payment of supplementary declarations for December 2021.
22 January 2022
Employers’ monthly PAYE (online)
Monthly deadline for online payments of PAYE, Class 1 NICs and student loan deductions from December 2021.
Employers’ quarterly PAYE (online)
Quarterly deadline for postal payments of PAYE, Class 1 NICs and student loan deductions from Q3 2021/22.
CIS return (online)
Monthly CIS deadline for online returns following the last month.
31 January 2022
Personal tax returns (online)
Midnight deadline to submit online self-assessment tax returns for 2020/21.
Midnight deadline to pay any outstanding tax you owe from 2019/20.
First payment on account
Midnight deadline to pay half of any tax owed for 2020/21.
Corporation tax return
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 January 2021 to be submitted to HMRC.
Company accounts filing deadline
Deadline for filing your annual accounts is 9 months after your company’s financial year ends.