2018
January
19th Jan – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Jan – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
31st Jan – Deadline for filing the self-assessment tax returns
31st Jan – Deadline for first payment on self-assessment account for the current tax year
February
1st Feb – £100 Late penalty arises for self-assessment tax returns not submitted on time
19th Feb – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Feb – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
28th Feb – 5% surcharge added to any tax due to be paid by 31st Jan and still outstanding
March
15th Mar – Any revised PAYE tax code issued from today until 5th April will not be operated by your employer
19th Mar – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Mar – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
April
5th Apr – tax year ends
6th Apr – tax year begins
19th Apr – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Apr – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
May
1st May – If your tax return is still outstanding, late filing penalties of £10 per day for a maximum of 90 days will commence
19th May – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd May – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
31st May – The deadline for supplying P60’s to employees
June
19th Jun – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Jun – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
July
5th Jul – Deadline for PAYE Settlement Agreement (PSA)
6th Jul – Submit P11D forms online to HMRC, give employees a copy of the information and inform HMRC the total amount of Class 1A National Insurance owed on form P11D(b)
19th Jul – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Jul – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
31st Jul – Deadline for first payment on self-assessment account for the tax year just ended
31st Jul – further 5% surcharge added to any tax due to be paid by 31st Jan and still outstanding
August
19th Aug – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Aug – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
September
19th Sep – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Sep – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
October
5th Oct – Deadline to notify HMRC of chargeability to Income Tax/Capital Gains Tax if not registered for self-assessment
19th Oct – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Oct – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
31st Oct – Deadline for postal submission of self-assessment tax returns for the previous tax year
November
1st Nov – Any self-assessment tax returns issued to you from today will not have to be submitted by 31st Jan. You will have 3 months from the date of issue.
19th Nov – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Nov – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
December
19th Dec – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
22nd Dec – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
30th Dec – Deadline for online submission of self-assessment tax returns if you wish to have unpaid tax of up to £3000 collected via your PAYE tax code.