As has already been said, even if there is no double taxation agreement, tax breaks can be made possible through a foreign tax credit. It has nothing to do with labour tax credits or child tax credits. Here you will find information on UK tax treaties, associated tax documents and multilateral agreements. The revised Convention on the Prevention of Double Taxation between India and Cyprus, signed on 18 November 2016, provides for a tax on capital gains from the disposal of shares instead of a home-related tax under the Convention on the Prevention of Double Taxation, signed in 1994. However, a grandfather clause is provided for investments made before April 1, 2017 and for which capital gains continue to be taxed in the country where the taxpayer is based. It also provides assistance between the two countries for the collection of taxes and updates the provisions on the exchange of information to recognized international standards. As a general rule, they still receive relief, even if there is no agreement, unless the foreign tax does not correspond to UK income tax or capital gains tax. NOTE: The exemption/reduction in Iceland under the current agreements can only be achieved if the Director of Internal Revenue requests an exemption/reduction on Form 5.42. Until there is an exemption allowed with the number one registered, you have to pay taxes in Iceland.
HMRC has guidelines for the exercise of double taxation relief if you are with a dual residence. The signing of the agreement on the prevention of double taxation has four main consequences. If you come to the UK and have a UK income that is taxed in your home country, you usually have to pay UK taxes. Your country of origin should give you double tax relief by providing a credit for UK taxes paid. However, if you live in a country with which the UK has a double taxation agreement, you may be entitled to a UK tax exemption if you spend less than 183 days in the UK and if you have an anonUK employer. Within the European Union, Member States have concluded a multilateral agreement on the exchange of information.  This means that they will provide each (its counterparts in the other jurisdiction) with a list of persons who have applied for exemption from local taxation because they are not established in the state where the income is generated. These people should have declared that foreign income in their own country of residence, so any difference suggests tax evasion.
In another scenario, a double taxation agreement may provide that non-exempt income is calculated at a reduced rate. For more information, see HMRC HS304`s “Non-Residents – Discharge under Double Taxation Agreements” on the GOV.UK. Certain types of British visitors are subject to special treatment under a double taxation agreement, such as students, teachers or overseas government officials.