So my wife and I, like many others, got into investing/options trading during the start of this pandemic. We both started with Robinhood accounts, but I later moved onto using TD Ameritrade/Think or Swim. My question is, for a married couple filing jointly, how do capital gains taxes work in regards to options trading on multiple accounts?
So say at the end of the year our account values look like this:
Wife Robinhood: +$10,000
My Robinhood: -$10,000
My TD Ameritrade: +$20,000
Am I correct in thinking the Robinhood account values would essentially offset in this scenario and the net short term capital gains tax we have to pay at the end of the year would be on the $20,000?
Additionally, are there any other tax considerations to consider in this scenario or in general when trading options? Also, what would be the best way to reduce tax liability in this situation?