Prime Minister Anthony Albanese has refused to rule out changes to what the Coalition have branded a "death tax".The federal budget will place a 30 per cent tax on discretionary trusts from July 2028, including discretionary testamentary trusts, which take effect after a person dies. Labor has been fielding questions about the so-called death tax during its nationwide campaign to promote the budget, which it has dismissed as a Coalition scare campaign.READ MORE: Government 'unaware' of booked flights for ISIS