KEY FINANCIAL DATES

31st January 

Self assessment tax return online filing and payment deadline (including first payment on account if applicable) 

5th April 

End of the tax year 

6th April 

Start of the tax year 

31st May 

Deadline for issuing employees with their annual P60s 

6th July 

Deadline for filing P11D(b) and issuing P11Ds to employees (if applicable) 

22nd July 

Payment of Class 1A NIC on the filed P11D(b) above (if applicable) 

31st July 

Second payment on account payment deadline for self assessment (if applicable) 

5th October 

Deadline for registration of self assessment for the tax year just passed 

31st October 

Self assessment tax return paper filing deadline