Hi, first time poster, been reading and searching for a while tho. My wife and I both want to get into share trading - we've made some decent CGT gains in this tax year through the markets on things bought last year, and its spurred us into learning more about trading, so we're planning ahead and want to try trading in the next tax year using some of the realised gains as seed capital. What we're wondering is whether we can use joint accounts for share trading (i.e. online brokerage and cash management account in both our names). We figure that having "joint custody" of the trading accounts will reduce our risk (when one or other of us isn't around the other can still exit trades). We already have one joint brokerage account for investment purposes, so the plan is to open a second for trading (so we can keep the 50% CGT discount on our long-term holdings). Can we just declare the profit/losses 50% each as with jointly owned capital assets? (i.e. both fill out item 15 on the tax return for 50% of the trading results) We're both employed and there's no tax advantage having it in just one name (assuming we make a profit ). From reading here and elsewhere, a family trust may be more tax efficient, but we don't want to go to the expense and additional paperwork overhead of that until we've proven to ourselves in 2012 that we can actually make a reasonable return and are ready to give trading a more serious business (and hopefully support ourselves with it).