Your UK tax liability depends on where you are 'resident' and 'domiciled' in a tax year.
Up to 5 April 2013, your tax position could be affected if you were ordinarily resident in the UK. However, from 6 April 2013, the concept of ordinary residence has largely been abolished for tax purposes.
Since 6 April 2013 the rules that determine if someone is resident in the UK for tax purposes have been put on a statutory basis. These rules are known as the Statutory Residence Test (SRT). For the majority of people whether or not they are resident for tax purposes is quite straightforward under the test and their position will not change. For those with complex circumstances the SRT will provide more certainty about their residence status.
To help you understand your tax residence status HM Revenue & Customs (HMRC) will be launching an on-line tax residence indicator. This residence indicator gives an indication of your tax residence status after answering a few straightforward questions such as how many days you spent in the UK, where you have a home and if you have family ties. The first version was launched in June 2013 follow this link to see how it affects you