johndoe123

Thank you both for your answer. I had a look at the tax treaty with Belgium and I found one article relating to capital gains: Article 13. "Gains from the alienation of any property other than that referred to in paragraphs (1), (2) and (3) of this Article shall be taxable only in the Contracting State of which the alienator Is a resident." Given that (1), (2) and (3) do not relate to shares, the tax should be due in Belgium. Would you be able to confirm this?

More concretely: - My last RSU vested in 2023. - I moved abroad in 2024. I do not plan to return. I am no longer tax resident in the UK, but in my new country. - I sold the shares in June 2024. The total amount of gains is over the 3000 GBP allowance.

I received shares (RSUs) from my employer in the UK. I have since quit my job and moved abroad. If I decide to sell the shares, do I still need to pay CGT in the UK?