No decision on ad campaign:Turnbull

Prime Minister Malcolm Turnbull insists no plans have been made to spruik the May 3 budget in a TV advertising campaign.

Sky News says it has seen the script for a taxpayer-funded, post-budget television ad campaign highlighting $16 billion in savings over the next four years through superannuation, multinational taxation and other tax changes.

"No decisions have been taken in that regard," Mr Turnbull told reporters in Canberra.