I'm not giving tax advice here but when you opened your CFD account did you give a tax file no. CFD trading is a grey area when it comes to tax. One could argue that it is gambling and therefore no subject to tax. Of course if you do it regularly and you want the option of claiming a loss then it's different circumstances. I no longer treat my CFD activities as taxable because I don't trade shares now mainly just binaries, options, spread betting . Please just see this as a different opinion and has nothing to do with your specific circumstances and ultimately your accountant and the tax man have the final call.
