Morrison won't budge on negative gearing

Treasurer Scott Morrison is sticking to his guns on housing investment tax concessions, saying making changes to negative gearing like those proposed by Labor would disadvantage middle-class families.

The treasurer estimates voters split 50/50 on the issue at the July 2 federal election, a result that hasn't persuaded him to change his mind.

"I don't accept the argument on negative gearing ... it would disadvantage those middle-class families, those ordinary families, the vast majority of who are the predominant investors in this area," Mr Morrison told ABC radio on Wednesday.