Title says it. I am a US citizen living in the UK, looking to get into algorithmic trading. Low trading fees are necessary, since I am not going to make a large profit per trade. A well-documented API is also necessary for obvious reasons.
The twist comes in with the UK versus US part. Since I am residing in the UK, I am able to make up to £12k per year tax free. My understanding is that if I use an exchange based in the US, I would be looking at ~40% capital gains tax since I am not planning on long-term positions.
So, are there any UK exchanges with fees comparable to Binance (for example) at 0.1% buy/sell rate that allow US citizens to trade?