From the ATO site
The transfer of shares to your spouse will give rise to a CGT event, and any profit will be subject to capital gains tax, and any loss will be a capital loss. The cost base of your shares is the purchase price, plus any associated costs with those shares, and the sale price is the market value of those shares on the day of transfer.
Again I ask why cant I transfer these to my wife and claim the loss???
https://community.ato.gov.au/t5/Personal-tax-questions/Calculating-Sale-price-for-off-market-transfer-of-shares/td-p/109417