Interest gains from Taiwan

Hi, I am about to process the self-assessment. One of my interest gain sources is from the saving interest in a Taiwan bank, and the Taiwan Government already took the tax from the interest gain directly. In my understanding, there's Double Taxation Relief Agreement between UK and Taiwan, does it apply to Interest Tax as well? As for the self-assessment, I should input the interest-gained amount before or after tax-from-Taiwan? Thanks! Best, Kennie

Hi
You will still declare this as foreign income in the return and declare the tax deducted. If UK tax is due on this you can then claim foreign tax credit relief to reduce your UK bill.