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UK personal tax advice

Do your earnings come from a variety of income sources? Are you self-employed or a limited company contractor? Do you possibly earn income outside of the UK? If you answered yes to any of these questions you may be required to submit a UK personal tax return. These can be complex, but with our help you'll always be on the right side of HMRC.

Who is usually required to submit a personal tax return?

  • Those who are (or were) a company director
  • Those who are (or were) self-employed
  • Those who earn an income from an overseas source, investment dividends or rental property
  • Those who receive other income that is not taxed at source - for example capital gains or dividends

Types of tax (and returns) that we can assist you with:


UK tax deadlines for individuals and partnerships

Download this table

Tax/other obligation



Income Tax return (self assessment) 31 January following the end of the tax year for electronic returns.

31 October following the end of the tax year for paper returns.
Depends on how late:
  • Missed deadline: £100
  • 3 months: £10 a day
  • 6 months: 5% of tax due or £300 if greater
  • 12 months: 5% of tax due or £300 if greater
Income Tax payments 31 January balancing payment for the previous tax year and first payment on account of the current year.

31 July second payment on account for the current tax year.
Depends on how late:
  • 30 days: 5% of tax due
  • 6 months: 5% of tax outstanding at that date
  • 12 months:5% of tax outstanding at that date
VAT (if registered) quarterly return and payment 1 month and 7 days after quarter end Surcharges can apply if you don’t file (or pay in full) by the deadline more than once in a 12 month period.

Level of surcharge depends on turnover and number of failures, ranging from 2% to 15% of the VAT outstanding.
PAYE (if an employer) RTI return On or before payment made to an employee In year submissions:
  • Can be up to 3 days late without penalty
  • Special rules apply in numerous situations
Final submission: £100 per 50 employees for each month.
PAYE payment 19th/22nd of each month (if making manual/electronic payment) unless arranged for a quarterly or annual scheme

Class 1A NICs: 19th/22nd of July (if making manual/electronic payment)following the end of the tax year
Late monthly and quarterly payments:
  • 1% to 4% of late amount depending on how many more times a payment is made late
  • No penalty if only one payment is late in any tax year, unless more than six months late
  • 5% if more than six months late
  • A further 5% if still not paid after 12 months
Annual payments (e.g. Class 1A NICs and PAYE Settlement Agreements):
  • Up to three penalties of 5% of the amount that is late, depending on the length of time that the amount is not paid in full
CIS returns 19th of each month Depends on how late:
  • 1 day: £100
  • 2 months: £200
  • 6 months: higher of £300 and
  • 5% of CIS deductions
  • 12 months: higher of £300 and
  • 5% of CIS deductions
  • Beyond this additional penalties can be up to the higher of 100% of the CIS deductions and £3,000.
Tax credits renewal 31 July If deadline is missed:
  • Tax credits payments will stop
  • Have to repay any amounts received since 6 April

Contact our accounting team

South Africa

Regent Square
Doncaster Road
Kenilworth 7708
Cape Town
t: +27 (0) 21 657 2120

United Kingdom

Castlewood House
77/91 New Oxford Street
t: +44 (0) 20 7759 7514


Suite 8.06
9 Yarra Street
South Yarra
Melbourne VIC 3141
t: +613 (0) 86 514 500

Hong Kong

Level 1102
The Lee Gardens
33 Hysan Avenue
Causeway Bay, Hong Kong
t: +852 3959 8681

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