I still own a pension fund in the Netherlands after I left. Will I have to declare this in a tax return?
If it concerns an individual pension which you have arranged yourself directly with the pension provider it depends on what type of product it is. For this the specific conditions are important. But if you are not living in the Netherlands anymore you will be treated as a non resident and will only have to declare certain specific income from the Netherlands. With respect to assets this will, in general, only concern a property which is located in the Netherlands or a substantial interest in a company in the Netherlands. A pension fund is not treated as a taxable asset when you are a non resident. You will have to look at the tax regulations in your own country to see if the fund needs to be declared there.