CRA recently released a letter with respect to spousal sharing of charitable gifts that was written to David Sherman, one of Canada's top tax lawyers.  As a result of recent legislative amendments in Bill C-43 which received Royal Assent on December 16, 2014, CRA has changed their administrative practice with respect to spousal sharing of charitable gifts with respect to deaths occurring after 2015 (i.e. in 2016 or later).  Bill C-43 included amendments affecting how will and certain designated gifts will be treated for tax purposes for gifts occurring after 2015 and according to CRA this necessitated the change.  The legislative changes affect the taxation of gifts made by will – in some case they will provide greater flexibility but in other cases or situations they may deny certain tax benefits.   

Here is a copy of the full CRA letter.