Tax review needed for housing: NSW premier

NSW Premier Gladys Berejiklian is open to the idea of looking at tax changes to help housing affordability.

NSW Premier is open to the idea of looking at tax changes to help housing affordability. (AAP)

NSW Premier Gladys Berejiklian says the tax system needs to be looked at in terms of housing affordability, although she believes supply remains the key issue.

Prime Minister Malcolm Turnbull and Treasurer Scott Morrison have both repeatedly dismissed the idea of curbing housing tax concessions, like negative gearing and capital gains tax.

"I am very open to looking at potential tax changes to improve housing affordability," Ms Berejiklian told Sky News on Sunday.