April 3 2014.

The new tax year starts on Sunday, 6th April and with it come a number of tax deadlines that should note be noted.

5th April - Deadline for 2013/14 ISA investments.
14th April - Due date for income tax for the CT61 period to 31st March 2014.
18th April - Quarter four 2013/14 PAYE remittance due.
20th April - Interest will begin to accrue on unpaid PAYE/NI for 2013/14.
30th April - Normal annual adjustment for VAT partial exemption calculations (monthly returns).