General Election poll
His comments went further than the party’s manifesto, which said they would keep taxes “low” but did not rule out a rise in income tax.
Campaigning in West Yorkshire, Prime Minister Theresa May declined to be drawn on his comments, saying only it was their “firm intention” to reduce taxes for ordinary families.
“Our position on tax hasn’t changed. We have set it out in the manifesto,” she said.
“What people will know when they go to vote on Thursday is that it is the Conservative Party that always has been, is and always will be a low-tax party.