"We are calling for all employers to pay the Living Wage because that is the income workers need to live with dignity."
The Living Wage is currently $20.55.
Marisa Bidois, chief executive of the Restaurant Association, said incremental increases to the minimum wage could be managed but larger figures such as $1.20 were seen to have a negative impact on business.
"A recurring comment from employers is their concern for pay parity for other employees and the upward pressure on all wages in the business," Bidois said.
"Wages are one of the hardest expenses to keep under control and, in hospitality, it can be extremely difficult to make ends meet when labour costs rise."
Leave entitlements for victims of domestic abuse also come into effect today.
Finance Minister Grant Robertson said today saw the Coalition Government delivering on its plan to provide greater support for business, workers and families in order to grow the economy and improve the wellbeing of New Zealanders.
"The Coalition Government has a plan to grow the economy and share the benefits fairly. This package of changes shows the Government is delivering on that plan and will see thousands of business and hundreds of thousands of New Zealanders better off.
"We are delivering these important changes while continuing to manage the Government's books responsibly, shown last week by the strong surplus in the Crown accounts."
Today's changes include:
