If you decide to move from one canton to another following a separation, please be aware that you will be liable for tax on both your income and your assets in your new canton of residence with retroactive effect from January 1 of the year in question.
You are liable to pay tax at the end of the year at your place of residence on all income and assets that you acquired during the year prior to your separation. You will no longer be taxed in the canton of Thurgau after your departure.
Your spouse remaining in the canton of Thurgau will also be taxed retroactively from January 1 of the year as a single person for his or her income and assets. Under certain circumstances, he or she can be classified as a single parent with special tax splitting.
Please note that these regulations also apply to registered partnerships.